/* ═══════════════════════════════════════════════
   SHIKSHARTHI — Final Stylesheet
   Theme: White + Blue (#4E89C7) + Purple (#8B5CF6)
   ═══════════════════════════════════════════════ */

/* ══════════════════
   VARIABLES
   ══════════════════ */
:root {
    --blue: #4E89C7;
    --purple: #8B5CF6;
    --grad: linear-gradient(135deg, #4E89C7, #8B5CF6);
    --grad-hover: linear-gradient(135deg, #3d73ab, #7c4edb);
    --grad-soft: linear-gradient(135deg, rgba(78,137,199,0.07), rgba(139,92,246,0.07));
    --grad-glow: 0 4px 18px rgba(78,137,199,0.25), 0 4px 18px rgba(139,92,246,0.18);
    --white: #ffffff;
    --bg: #f4f6fb;
    --card: #ffffff;
    --input-bg: #f8f9fc;
    --txt: #1e293b;
    --txt2: #475569;
    --txt3: #94a3b8;
    --bdr: #e2e8f0;
    --bdr2: #f1f5f9;
    --ok: #10b981;
    --ok-bg: #ecfdf5;
    --err: #ef4444;
    --err-bg: #fef2f2;
    --warn: #f59e0b;
    --warn-bg: #fffbeb;
    --inf: #3b82f6;
    --inf-bg: #eff6ff;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --r-sm: 8px;
    --r-md: 12px;
    --r-lg: 16px;
    --r-xl: 20px;
    --r-full: 9999px;
    --sh-sm: 0 1px 3px rgba(0,0,0,0.06);
    --sh-md: 0 4px 12px rgba(0,0,0,0.07);
    --sh-lg: 0 8px 30px rgba(0,0,0,0.09);
    --sh-xl: 0 16px 48px rgba(0,0,0,0.12);
    --ease: all 0.3s cubic-bezier(0.4,0,0.2,1);
    --nav-h: 64px;
    --mob-h: 58px;
    --max-w: 1140px;
    --side-w: 360px;
}

/* ══════════════════
   RESET
   ══════════════════ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);font-size:15px;line-height:1.6;color:var(--txt);background:var(--bg);-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.locked{overflow:hidden!important}
a{text-decoration:none;color:var(--blue);transition:var(--ease)}
img{max-width:100%;height:auto;display:block}
button{cursor:pointer;border:none;background:none;font-family:var(--font);color:inherit}
input,select,textarea{font-family:var(--font);font-size:14px}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3}


/* ══════════════════
   BUTTONS
   ══════════════════ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 24px;border:2px solid transparent;border-radius:var(--r-md);font-size:14px;font-weight:600;cursor:pointer;transition:var(--ease);white-space:nowrap}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-primary,.btn-gradient{background:var(--grad);color:#fff;box-shadow:var(--grad-glow)}
.btn-primary:hover:not(:disabled),.btn-gradient:hover:not(:disabled){background:var(--grad-hover);transform:translateY(-2px);box-shadow:0 8px 28px rgba(78,137,199,0.35)}
.btn-outline{background:transparent;color:var(--blue);border-color:var(--blue)}
.btn-outline:hover:not(:disabled){background:var(--blue);color:#fff}
.btn-outline-gradient{background:#fff;color:var(--blue);border:2px solid var(--bdr);position:relative}
.btn-outline-gradient:hover{background:var(--grad);color:#fff;border-color:transparent;box-shadow:var(--grad-glow)}
.btn-outline-white{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-outline-white:hover{background:rgba(255,255,255,.15);border-color:#fff}
.btn-secondary{background:var(--bdr2);color:var(--txt2);border:1px solid var(--bdr)}
.btn-secondary:hover{background:var(--bdr)}
.btn-danger{background:var(--err);color:#fff}
.btn-danger:hover:not(:disabled){background:#dc2626;transform:translateY(-2px)}
.btn-full{width:100%}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-lg{padding:14px 32px;font-size:16px}


/* ══════════════════
   ALERTS
   ══════════════════ */
.alert{display:flex;align-items:center;justify-content:space-between;padding:13px 16px;border-radius:var(--r-md);margin-bottom:18px;font-size:14px;font-weight:500;animation:fadeDown .4s ease}
.alert-content{display:flex;align-items:center;gap:10px;flex:1}
.alert-close{color:inherit;opacity:.5;padding:4px 6px;border-radius:4px}
.alert-close:hover{opacity:1}
.alert-success{background:var(--ok-bg);color:#065f46;border:1px solid #a7f3d0}
.alert-error{background:var(--err-bg);color:#991b1b;border:1px solid #fecaca}
.alert-warning{background:var(--warn-bg);color:#92400e;border:1px solid #fde68a}
.alert-info{background:var(--inf-bg);color:#1e40af;border:1px solid #bfdbfe}
.error-list{margin:0;padding:0}
.error-list li{margin-bottom:3px;list-style:disc;margin-left:16px}


/* ══════════════════
   FORMS
   ══════════════════ */
.form-group{margin-bottom:18px;flex:1}
.form-label,.form-group label{display:block;font-size:13px;font-weight:600;color:var(--txt2);margin-bottom:6px}
.form-label i,.form-group label i{color:var(--blue);margin-right:5px}
.required{color:var(--err)}
.form-input,.form-group input,.form-group select,.form-group textarea{width:100%;padding:11px 15px;border:2px solid var(--bdr);border-radius:var(--r-md);font-size:14px;color:var(--txt);background:var(--white);transition:var(--ease);outline:none}
.form-input:focus,.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(78,137,199,.12)}
.form-input::placeholder{color:var(--txt3)}
.form-select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239ca3af' d='M6 8.825L.35 3.175 1.05 2.5 6 7.45 10.95 2.5l.7.675z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.form-row{display:flex;gap:14px}
.form-col{flex:1;min-width:0}
.form-hint,.form-group small{font-size:12px;color:var(--txt3);margin-top:5px;display:block}
.input-password-wrapper{position:relative}
.input-password-wrapper .form-input{padding-right:48px}
.password-toggle{position:absolute;right:4px;top:50%;transform:translateY(-50%);color:var(--txt3);padding:8px 12px;font-size:16px}
.password-toggle:hover{color:var(--blue)}


/* ══════════════════
   PASSWORD REQ
   ══════════════════ */
.password-requirements{margin-top:10px;padding:12px 14px;background:var(--bdr2);border-radius:var(--r-sm);border:1px solid var(--bdr)}
.password-requirements .req{font-size:12px;color:var(--txt3);margin-bottom:4px;transition:var(--ease)}
.password-requirements .req:last-child{margin-bottom:0}
.password-requirements .req i{margin-right:6px;font-size:10px;width:14px;text-align:center}
.password-requirements .req.met{color:var(--ok)}
.password-requirements .req.met i{color:var(--ok)}


/* ══════════════════
   PHOTO UPLOAD
   ══════════════════ */
.photo-group{text-align:center;margin-bottom:24px}
.photo-upload-wrapper{display:inline-block}
.photo-preview-container{width:110px;height:110px;border-radius:50%;overflow:hidden;position:relative;cursor:pointer;margin:0 auto 8px;border:3px solid var(--bdr);transition:var(--ease)}
.photo-preview-container:hover{border-color:var(--blue);transform:scale(1.05)}
.photo-preview-container img{width:100%;height:100%;object-fit:cover}
.photo-overlay{position:absolute;bottom:0;left:0;right:0;background:rgba(0,0,0,.55);color:#fff;padding:6px 0;font-size:11px;text-align:center}
.photo-overlay i{display:block;font-size:14px;margin-bottom:2px}
.photo-preview-container:hover .photo-overlay{background:rgba(78,137,199,.8)}


/* ══════════════════
   OTP
   ══════════════════ */
.otp-icon{width:80px;height:80px;margin:0 auto 20px;background:rgba(78,137,199,.1);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:32px;color:var(--blue);animation:pulse 2s ease-in-out infinite}
.otp-instruction{color:var(--txt2);font-size:14px;margin-bottom:20px;line-height:1.7}
.otp-timer{display:inline-flex;align-items:center;gap:8px;background:var(--inf-bg);color:var(--inf);padding:8px 20px;border-radius:var(--r-full);font-size:18px;font-weight:700;font-family:'Courier New',monospace;margin-bottom:24px}
.otp-timer i{font-size:14px}
.otp-timer.expired{background:var(--err-bg);color:var(--err)}
.otp-input{text-align:center;font-size:32px!important;font-weight:800;letter-spacing:12px;font-family:'Courier New',monospace;padding:14px 20px!important}
.otp-input::placeholder{letter-spacing:8px;font-size:24px}
.resend-form{margin-top:20px}
.resend-text{font-size:13px;color:var(--txt3);margin-bottom:8px}


/* ══════════════════
   AUTH PAGES
   ══════════════════ */
.auth-body{background:var(--bg);min-height:100vh}
.auth-wrapper{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:30px 16px}
.auth-card{background:var(--white);border-radius:var(--r-xl);box-shadow:var(--sh-lg);width:100%;max-width:540px;overflow:hidden;animation:slideUp .5s ease}
.auth-card-narrow{max-width:460px}
.auth-header{background:var(--grad);padding:32px 30px;text-align:center;position:relative;overflow:hidden}
.auth-header::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.1) 0%,transparent 60%);animation:shimmer 3s ease-in-out infinite}
.auth-logo{color:#fff;font-size:26px;font-weight:800;letter-spacing:3px;position:relative;z-index:1}
.auth-tagline{color:rgba(255,255,255,.85);font-size:14px;margin-top:6px;position:relative;z-index:1}
.auth-body-content{padding:32px 30px}
.center-content{text-align:center}
.auth-icon{width:72px;height:72px;margin:0 auto 20px;background:rgba(78,137,199,.1);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:28px;color:var(--blue)}
.auth-icon-success{background:var(--ok-bg);color:var(--ok)}
.auth-description{color:var(--txt2);font-size:14px;margin-bottom:24px;line-height:1.7}
.auth-footer{text-align:center;padding-top:20px;margin-top:24px;border-top:1px solid var(--bdr);font-size:14px;color:var(--txt2)}
.auth-link{color:var(--blue);font-weight:600}
.auth-link:hover{color:var(--purple);text-decoration:underline}
.forgot-link{text-align:right;margin:-8px 0 20px;font-size:13px}


/* ══════════════════
   HOME / HERO
   ══════════════════ */
.home-body{min-height:100vh;display:flex;flex-direction:column}
.hero-section{flex:1;display:flex;align-items:center;justify-content:center;background:var(--grad);padding:60px 20px;position:relative;overflow:hidden;min-height:100vh}
.hero-content{text-align:center;max-width:640px;position:relative;z-index:2;animation:fadeUp .8s ease}
.hero-logo-wrapper{margin-bottom:16px}
.hero-emoji{font-size:56px;display:block;margin-bottom:8px;animation:bounce 2s ease-in-out infinite}
.hero-title{color:#fff;font-size:42px;font-weight:800;letter-spacing:6px;text-shadow:0 4px 20px rgba(0,0,0,.15)}
.hero-tagline{color:rgba(255,255,255,.9);font-size:18px;margin-bottom:20px}
.hero-description{color:rgba(255,255,255,.8);font-size:15px;line-height:1.8;margin-bottom:28px}
.hero-badges{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:36px}
.badge-pill{background:rgba(255,255,255,.15);color:#fff;padding:8px 18px;border-radius:var(--r-full);font-size:13px;backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2)}
.hero-actions{display:flex;justify-content:center;gap:16px;margin-bottom:48px;flex-wrap:wrap}
.hero-features{display:flex;justify-content:center;flex-wrap:wrap;gap:24px}
.feature-mini{display:flex;flex-direction:column;align-items:center;gap:6px;color:rgba(255,255,255,.8)}
.feature-mini i{font-size:22px;color:#fff}
.feature-mini span{font-size:12px;font-weight:500}
.hero-bg-shape{position:absolute;border-radius:50%;background:rgba(255,255,255,.04)}
.shape-1{width:400px;height:400px;top:-100px;right:-100px;animation:float 8s ease-in-out infinite}
.shape-2{width:300px;height:300px;bottom:-80px;left:-80px;animation:float 10s ease-in-out infinite reverse}
.shape-3{width:200px;height:200px;top:40%;left:10%;animation:float 6s ease-in-out infinite 1s}
.home-flash{position:fixed;top:20px;left:50%;transform:translateX(-50%);z-index:1000;max-width:400px;width:90%;box-shadow:var(--sh-lg)}
.home-footer{background:rgba(0,0,0,.2);padding:16px;text-align:center;color:rgba(255,255,255,.5);font-size:12px}


/* ══════════════════════════
   NAVBAR
   ══════════════════════════ */
.app-body{padding-top:var(--nav-h)}

.main-content{max-width:var(--max-w);margin:0 auto;padding:24px 20px;min-height:calc(100vh - var(--nav-h) - 200px)}

.sk-navbar{position:fixed;top:0;left:0;right:0;height:var(--nav-h);background:var(--white);border-bottom:1px solid var(--bdr);z-index:1000;transition:var(--ease)}
.sk-navbar.scrolled{box-shadow:var(--sh-md)}

.sk-nav-inner{max-width:1400px;margin:0 auto;height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 20px}

.sk-brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.sk-brand-icon{width:38px;height:38px;background:var(--grad);border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;box-shadow:var(--grad-glow)}
.sk-brand-name{font-size:18px;font-weight:800;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* Desktop Menu */
.sk-menu{display:flex;align-items:center;gap:3px}
.sk-menu-close{display:none}

.sk-nav-link{display:flex;align-items:center;gap:6px;padding:8px 12px;border-radius:var(--r-sm);font-size:13px;font-weight:500;color:var(--txt2);transition:var(--ease);cursor:pointer;text-decoration:none;white-space:nowrap;background:none;border:none}
.sk-nav-link:hover{color:var(--blue);background:var(--grad-soft)}
.sk-nav-link.active{color:var(--blue);background:var(--grad-soft);font-weight:600}
.sk-nav-link i{font-size:14px}

.sk-logout-btn{color:var(--err)!important;margin-left:4px}
.sk-logout-btn:hover{background:var(--err-bg)!important}

/* Dropdown */
.sk-dropdown{position:relative}
.sk-dropdown-btn{font-family:var(--font)}
.sk-arrow{font-size:10px;margin-left:2px;transition:transform .3s}
.sk-dropdown.open .sk-arrow{transform:rotate(180deg)}

.sk-dropdown-menu{position:absolute;top:calc(100% + 6px);left:50%;transform:translateX(-50%) translateY(8px);min-width:190px;background:var(--white);border-radius:var(--r-md);box-shadow:var(--sh-xl);border:1px solid var(--bdr);padding:6px;opacity:0;visibility:hidden;pointer-events:none;transition:var(--ease);z-index:200}
.sk-dropdown.open .sk-dropdown-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}

.sk-dropdown-menu a{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--r-sm);font-size:13px;color:var(--txt2);transition:var(--ease)}
.sk-dropdown-menu a:hover{background:var(--grad-soft);color:var(--blue)}
.sk-dropdown-menu a.active{color:var(--blue);font-weight:600}

/* Hamburger */
.sk-hamburger{display:none;flex-direction:column;justify-content:center;gap:5px;width:36px;height:36px;padding:6px;border-radius:var(--r-sm)}
.sk-hamburger:hover{background:var(--bdr2)}
.sk-hamburger span{width:100%;height:2.5px;background:var(--txt);border-radius:2px;transition:var(--ease)}
.sk-hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.sk-hamburger.open span:nth-child(2){opacity:0}
.sk-hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

.sk-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:998;opacity:0;transition:opacity .3s}
.sk-overlay.show{display:block;opacity:1}


/* ══════════════════════════
   FOOTER
   ══════════════════════════ */
.sk-footer{background:var(--white);border-top:1px solid var(--bdr);margin-top:40px;padding:36px 0 20px}
.sk-footer-inner{max-width:var(--max-w);margin:0 auto;padding:0 20px}
.sk-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px}
.sk-footer-brand{font-size:18px;font-weight:800;color:var(--txt);margin-bottom:8px}
.sk-footer-brand i{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-right:6px}
.sk-footer-desc{font-size:13px;color:var(--txt3);line-height:1.7}
.sk-footer h4{font-size:14px;font-weight:700;color:var(--txt);margin-bottom:10px}
.sk-footer p{font-size:13px;color:var(--txt3);margin-bottom:6px}
.sk-footer p i{color:var(--blue);margin-right:6px;width:14px}
.sk-footer a{color:var(--blue)}
.sk-footer a:hover{color:var(--purple)}
.sk-footer-bottom{margin-top:20px;padding-top:16px;border-top:1px solid var(--bdr);text-align:center;font-size:12px;color:var(--txt3)}


/* ══════════════════════════
   MOBILE BOTTOM NAV
   ══════════════════════════ */
.sk-mobile-nav{display:none;position:fixed;bottom:0;left:0;right:0;height:var(--mob-h);background:var(--white);border-top:1px solid var(--bdr);z-index:999;box-shadow:0 -2px 12px rgba(0,0,0,.06)}
.sk-mobile-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;flex:1;color:var(--txt3);font-size:10px;font-weight:600;transition:var(--ease);text-decoration:none;position:relative}
.sk-mobile-nav a i{font-size:18px}
.sk-mobile-nav a.on{color:var(--blue)}
.sk-mobile-nav a.on::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);width:28px;height:3px;background:var(--grad);border-radius:0 0 3px 3px}
.sk-mobile-nav a:hover{color:var(--blue)}


/* ══════════════════════════
   CARDS
   ══════════════════════════ */
.card{background:var(--card);border-radius:var(--r-lg);box-shadow:var(--sh-sm);border:1px solid var(--bdr);transition:var(--ease)}
.card:hover{box-shadow:var(--sh-md)}
.card-header{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--bdr2)}
.card-header h3{font-size:15px;font-weight:700;color:var(--txt);display:flex;align-items:center;gap:9px}
.card-header h3 i{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}


/* ══════════════════════════
   PROFILE PAGE
   ══════════════════════════ */
.profile-layout{display:grid;grid-template-columns:var(--side-w) 1fr;gap:22px;align-items:start}
.profile-left{position:sticky;top:calc(var(--nav-h) + 20px)}

.profile-card{padding:28px 22px 22px;text-align:center}

.profile-avatar-section{position:relative;display:inline-block;margin-bottom:14px}
.profile-avatar-container{width:110px;height:110px;border-radius:50%;background:var(--grad);padding:3px;position:relative;margin:0 auto;box-shadow:var(--grad-glow)}
.profile-avatar-img{width:100%;height:100%;border-radius:50%;object-fit:cover;border:3px solid var(--white)}
.avatar-edit-overlay{position:absolute;inset:3px;border-radius:50%;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;opacity:0;cursor:pointer;transition:var(--ease)}
.profile-avatar-container:hover .avatar-edit-overlay{opacity:1}

.verified-badge{position:absolute;bottom:2px;right:-2px;width:26px;height:26px;background:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--blue);font-size:16px;box-shadow:var(--sh-md)}

.profile-name{font-size:20px;font-weight:800;color:var(--txt);margin-bottom:3px}
.profile-student-id{font-size:13px;font-weight:600;color:var(--blue);margin-bottom:3px;display:flex;align-items:center;justify-content:center;gap:6px}
.profile-subtitle{font-size:13px;color:var(--txt3);margin-bottom:18px}

.profile-stats-bar{display:flex;align-items:center;background:var(--grad-soft);border-radius:var(--r-md);padding:14px 8px;margin-bottom:20px;border:1px solid var(--bdr2)}
.stat-item{flex:1;text-align:center}
.stat-number{display:block;font-size:20px;font-weight:800;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2}
.stat-label{display:block;font-size:10px;font-weight:600;color:var(--txt3);text-transform:uppercase;letter-spacing:.5px;margin-top:2px}
.stat-divider{width:1px;height:32px;background:var(--bdr)}

.profile-info-list{text-align:left;margin-bottom:18px}
.info-row{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--bdr2)}
.info-row:last-child{border-bottom:none}
.info-icon-box{width:36px;height:36px;background:var(--grad-soft);border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.info-icon-box i{font-size:13px;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.info-data{display:flex;flex-direction:column;min-width:0}
.info-label{font-size:10px;font-weight:600;color:var(--txt3);text-transform:uppercase;letter-spacing:.5px}
.info-value{font-size:13px;font-weight:600;color:var(--txt);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}


/* ══════════════════════════
   BADGES
   ══════════════════════════ */
.badge-count{font-size:12px;font-weight:700;color:var(--blue);background:var(--grad-soft);padding:4px 12px;border-radius:20px}
.badges-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;padding:18px 20px}
.badge-item{display:flex;flex-direction:column;align-items:center;gap:6px;padding:14px 6px;border-radius:var(--r-md);background:var(--bdr2);border:2px solid transparent;transition:var(--ease);text-align:center}
.badge-item.earned{background:var(--grad-soft);border-color:rgba(78,137,199,.2)}
.badge-item.earned:hover{transform:translateY(-3px);box-shadow:0 6px 18px rgba(78,137,199,.12);border-color:var(--blue)}
.badge-item.locked{opacity:.4;filter:grayscale(.9)}
.badge-item.locked:hover{opacity:.55;filter:grayscale(.5)}
.badge-icon-wrap{position:relative;width:42px;height:42px;display:flex;align-items:center;justify-content:center}
.badge-icon{font-size:28px;line-height:1}
.badge-lock-icon{position:absolute;bottom:-2px;right:-2px;font-size:11px;color:var(--txt3);background:var(--bdr2);border-radius:50%;padding:2px}
.badge-name{font-size:11px;font-weight:700;color:var(--txt);line-height:1.2}
.badge-req{font-size:10px;font-weight:600;color:var(--txt3)}
.badge-item.earned .badge-req{color:var(--ok)}


/* ══════════════════════════
   STREAK
   ══════════════════════════ */
.streak-content{padding:22px;text-align:center}
.streak-main{margin-bottom:20px}
.streak-fire{margin-bottom:4px}
.fire-emoji{font-size:44px;display:inline-block;animation:fireFlicker 1.5s ease-in-out infinite}
.streak-number{font-size:54px;font-weight:900;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1;margin-bottom:4px}
.streak-label{font-size:13px;font-weight:600;color:var(--txt3);text-transform:uppercase;letter-spacing:1px}
.streak-details{display:flex;gap:10px;margin-bottom:14px}
.streak-detail-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:5px;padding:12px;background:var(--bdr2);border-radius:var(--r-md)}
.streak-detail-item i{font-size:14px;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.streak-detail-item span{font-size:10px;color:var(--txt3);font-weight:500}
.streak-detail-item strong{font-size:15px;font-weight:800;color:var(--txt)}
.streak-motivation{padding:10px 14px;background:var(--grad-soft);border-radius:var(--r-sm);border-left:3px solid var(--blue);text-align:left}
.streak-motivation p{font-size:12px;font-weight:500;color:var(--txt2)}


/* ══════════════════════════
   DAILY QUOTE
   ══════════════════════════ */
.quote-card{background:var(--grad)!important;color:#fff!important;padding:26px 22px 16px;position:relative;overflow:hidden;border:none!important}
.quote-card:hover{box-shadow:var(--grad-glow)!important}
.quote-decoration{position:absolute;top:-8px;left:12px;font-size:65px;opacity:.12;line-height:1;color:#fff}
.quote-text{font-size:14px;font-weight:500;line-height:1.7;margin-bottom:16px;position:relative;z-index:1;font-style:italic}
.quote-author{display:flex;align-items:center;gap:10px;margin-bottom:14px;position:relative;z-index:1}
.author-info{display:flex;flex-direction:column}
.author-info strong{font-size:13px;font-weight:700}
.author-info span{font-size:11px;opacity:.8}
.quote-footer{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:1px;opacity:.5;padding-top:12px;border-top:1px solid rgba(255,255,255,.2);display:flex;align-items:center;gap:6px}


/* ══════════════════════════
   MODAL
   ══════════════════════════ */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);backdrop-filter:blur(5px);z-index:2000;display:flex;align-items:center;justify-content:center;padding:16px;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .25s,visibility .25s}
.modal-overlay.active{opacity:1;visibility:visible;pointer-events:auto}

.modal{background:var(--white);border-radius:var(--r-xl);width:100%;max-width:520px;max-height:88vh;overflow-y:auto;box-shadow:var(--sh-xl);transform:translateY(16px) scale(.97);transition:transform .3s ease}
.modal-overlay.active .modal{transform:translateY(0) scale(1)}

.modal-header{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--bdr);position:sticky;top:0;background:var(--white);z-index:10;border-radius:var(--r-xl) var(--r-xl) 0 0}
.modal-header h3{font-size:17px;font-weight:700;display:flex;align-items:center;gap:8px;color:var(--txt)}
.modal-header h3 i{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.modal-close{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--txt3);transition:var(--ease);cursor:pointer}
.modal-close:hover{background:var(--err-bg);color:var(--err)}
.modal-body{padding:22px}
.modal-actions{display:flex;gap:10px;justify-content:flex-end;padding-top:8px}

.photo-upload-group .photo-upload-preview{display:flex;flex-direction:column;align-items:center;gap:10px;padding:18px;border:2px dashed var(--bdr);border-radius:var(--r-md);text-align:center;transition:var(--ease)}
.photo-upload-preview:hover{border-color:var(--blue);background:var(--grad-soft)}
.photo-upload-preview img{width:80px;height:80px;border-radius:50%;object-fit:cover;border:3px solid var(--bdr)}
.photo-upload-btn{padding:8px 16px;background:var(--grad-soft);color:var(--blue);border-radius:var(--r-sm);font-size:13px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:var(--ease)}
.photo-upload-btn:hover{background:var(--grad);color:#fff}


/* ══════════════════════════
   ANIMATIONS
   ══════════════════════════ */
@keyframes slideUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeDown{from{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.08)}}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes float{0%,100%{transform:translate(0,0)}33%{transform:translate(15px,-15px)}66%{transform:translate(-10px,10px)}}
@keyframes shimmer{0%,100%{transform:translate(-50%,-50%) rotate(0)}50%{transform:translate(-50%,-50%) rotate(180deg)}}
@keyframes fireFlicker{0%,100%{transform:scale(1) rotate(0)}25%{transform:scale(1.05) rotate(-3deg)}50%{transform:scale(1.1) rotate(2deg)}75%{transform:scale(1.05) rotate(-1deg)}}

.profile-card{animation:slideUp .4s ease}
.badges-card{animation:slideUp .4s .08s ease both}
.streak-card{animation:slideUp .4s .16s ease both}
.quote-card{animation:slideUp .4s .24s ease both}


/* ══════════════════════════
   SCROLLBAR
   ══════════════════════════ */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--txt3);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--txt2)}
::selection{background:var(--blue);color:#fff}
:focus-visible{outline:2px dashed var(--blue);outline-offset:2px}


/* ═══════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════ */

/* ── 1024px ── */
@media(max-width:1024px){
    .sk-hamburger{display:flex}

    .sk-menu{
        position:fixed;top:0;right:-290px;width:280px;height:100vh;height:100dvh;
        background:var(--white);flex-direction:column;align-items:stretch;
        padding:20px 14px;gap:2px;
        box-shadow:-6px 0 24px rgba(0,0,0,.12);
        transition:right .35s cubic-bezier(.4,0,.2,1);
        z-index:999;overflow-y:auto;border-left:1px solid var(--bdr)
    }
    .sk-menu.open{right:0}

    /* Close button - visible on mobile */
    .sk-menu-close{
        display:flex;align-items:center;justify-content:center;
        width:36px;height:36px;border-radius:50%;
        color:var(--txt3);font-size:18px;
        align-self:flex-end;margin-bottom:10px;
        transition:var(--ease)
    }
    .sk-menu-close:hover{background:var(--err-bg);color:var(--err)}

    .sk-overlay{display:none}
    .sk-overlay.show{display:block}

    .sk-nav-link{padding:11px 14px;font-size:14px}
    .sk-dropdown{width:100%}

    .sk-dropdown-menu{
        position:static;transform:none;box-shadow:none;border:none;
        background:var(--bdr2);border-radius:var(--r-sm);
        padding:0;margin-top:4px;max-height:0;overflow:hidden;opacity:0;
        transition:max-height .3s,opacity .3s,padding .3s
    }
    .sk-dropdown.open .sk-dropdown-menu{max-height:200px;opacity:1;padding:6px;visibility:visible;pointer-events:auto}

    .sk-logout-btn{margin-left:0;margin-top:8px;border-top:1px solid var(--bdr);padding-top:14px}

    .profile-layout{grid-template-columns:1fr}
    .profile-left{position:static}
}

/* ── 768px ── */
@media(max-width:768px){
    :root{--nav-h:56px}

    .main-content{padding:14px 12px;padding-bottom:calc(var(--mob-h) + 18px)}
    .sk-mobile-nav{display:flex}

    .sk-footer{padding-bottom:calc(var(--mob-h) + 8px)}
    .sk-footer-grid{grid-template-columns:1fr;gap:20px}
    .sk-footer-bottom{margin-top:14px}

    .sk-brand-name{font-size:16px}

    .profile-card{padding:22px 16px 16px}
    .profile-avatar-container{width:90px;height:90px}
    .profile-name{font-size:18px}
    .stat-number{font-size:17px}

    .badges-grid{grid-template-columns:repeat(3,1fr);gap:6px;padding:12px}
    .badge-item{padding:12px 4px}
    .badge-icon{font-size:24px}
    .badge-name{font-size:10px}

    .streak-number{font-size:42px}
    .streak-details{flex-direction:column}

    .quote-card{padding:22px 18px 14px}
    .quote-text{font-size:13px}

    .modal{max-height:92vh;max-height:92dvh;border-radius:var(--r-lg);margin:0 4px}
    .modal-body{padding:18px 16px}
    .form-row{flex-direction:column;gap:0}
    .modal-actions{flex-direction:column-reverse;gap:8px}
    .modal-actions .btn{width:100%}

    .auth-wrapper{padding:16px 10px}
    .auth-body-content{padding:24px 18px}
    .auth-header{padding:24px 18px}
    .auth-logo{font-size:22px}
    .hero-title{font-size:30px;letter-spacing:4px}
    .hero-tagline{font-size:15px}
    .hero-emoji{font-size:42px}
}

/* ── 480px ── */
@media(max-width:480px){
    .badges-grid{grid-template-columns:repeat(2,1fr)}
    .profile-stats-bar{padding:10px 6px}
    .info-value{font-size:12px}
    .auth-body-content{padding:20px 14px}
    .auth-header{padding:20px 14px}
    .auth-logo{font-size:18px;letter-spacing:2px}
    .hero-title{font-size:24px;letter-spacing:3px}
    .hero-actions{flex-direction:column;align-items:center}
    .hero-actions .btn{width:100%;max-width:260px}
    .otp-input{font-size:24px!important;letter-spacing:8px}
    .photo-preview-container{width:90px;height:90px}
    .modal-header{padding:14px 16px}
    .modal-header h3{font-size:15px}
}



/* ═══════════════════════════════════
   PAGE SPECIFIC STYLES
   ═══════════════════════════════════ */

/* ── Breadcrumb ── */
.breadcrumb{display:flex;align-items:center;gap:8px;margin-bottom:20px;font-size:13px;color:var(--txt3);flex-wrap:wrap}
.breadcrumb a{color:var(--blue);font-weight:500}
.breadcrumb a:hover{text-decoration:underline}
.bc-sep{font-size:10px;color:var(--txt3)}

/* ── Page Header ── */
.page-header{margin-bottom:24px}
.page-header h1{font-size:24px;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:4px}
.page-header h1 i{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.page-header p{font-size:14px;color:var(--txt3)}

/* ── Subjects Grid ── */
.subjects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.subject-card{background:var(--card);border:1px solid var(--bdr);border-radius:var(--r-lg);padding:28px 20px;text-align:center;transition:var(--ease);display:block}
.subject-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--card-color,var(--blue))}
.subject-icon{width:56px;height:56px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:24px;color:var(--card-color,var(--blue));background:color-mix(in srgb,var(--card-color,var(--blue)) 10%,transparent)}
.subject-card h3{font-size:16px;font-weight:700;color:var(--txt);margin-bottom:4px}
.subject-meta{font-size:12px;color:var(--txt3)}

/* ── Chapters List ── */
.chapters-list{display:flex;flex-direction:column;gap:12px}
.chapter-card{background:var(--card);border:1px solid var(--bdr);border-radius:var(--r-lg);padding:18px 20px;display:flex;align-items:center;gap:16px;transition:var(--ease)}
.chapter-card:hover{box-shadow:var(--sh-md);border-color:var(--blue)}
.chapter-num{width:52px;height:52px;border-radius:var(--r-md);background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;flex-shrink:0}
.chapter-info{flex:1;min-width:0}
.chapter-info h3{font-size:15px;font-weight:700;color:var(--txt);margin-bottom:2px}
.chapter-info p{font-size:12px;color:var(--txt3);margin-bottom:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chapter-meta{display:flex;gap:14px;font-size:12px;color:var(--txt3);margin-bottom:6px}
.chapter-meta i{color:var(--blue);margin-right:3px}
.chapter-pct{font-size:18px;font-weight:800;color:var(--blue);flex-shrink:0}

/* ── Progress Bar ── */
.progress-bar{width:100%;height:6px;background:var(--bdr2);border-radius:3px;overflow:hidden}
.progress-fill{height:100%;background:var(--grad);border-radius:3px;transition:width .5s ease}

/* ── Video Layout ── */
.video-layout{display:grid;grid-template-columns:1fr 320px;gap:20px;align-items:start}
.video-player{position:relative;padding-bottom:56.25%;height:0;border-radius:var(--r-lg);overflow:hidden;background:#000}
.video-player iframe{position:absolute;top:0;left:0;width:100%;height:100%}
.video-info-bar{display:flex;align-items:center;justify-content:space-between;padding:16px 0;gap:12px;flex-wrap:wrap}
.video-info-bar h2{font-size:17px;font-weight:700}
.video-duration{font-size:13px;color:var(--txt3);margin-top:2px}

.btn-mark{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--r-sm);font-size:13px;font-weight:600;border:2px solid var(--bdr);color:var(--txt2);background:var(--card);cursor:pointer;transition:var(--ease)}
.btn-mark:hover{border-color:var(--blue);color:var(--blue)}
.btn-mark.completed{background:var(--ok-bg);border-color:var(--ok);color:#065f46}

.video-sidebar{background:var(--card);border:1px solid var(--bdr);border-radius:var(--r-lg);overflow:hidden}
.video-sidebar h3{padding:14px 16px;font-size:14px;font-weight:700;border-bottom:1px solid var(--bdr2);display:flex;align-items:center;gap:8px}
.video-list{max-height:500px;overflow-y:auto}
.video-list-item{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--bdr2);transition:var(--ease);font-size:13px;color:var(--txt2)}
.video-list-item:hover{background:var(--grad-soft)}
.video-list-item.playing{background:var(--grad-soft);color:var(--blue);font-weight:600}
.video-list-item.done{opacity:.7}
.vl-num{width:24px;height:24px;border-radius:50%;background:var(--bdr2);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex-shrink:0}
.vl-info{flex:1;min-width:0}
.vl-title{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vl-dur{font-size:11px;color:var(--txt3)}
.vl-check{color:var(--ok);flex-shrink:0}

/* ── Note Layout ── */
.note-layout{display:grid;grid-template-columns:1fr 280px;gap:20px;align-items:start}
.note-reader{background:var(--card);border:1px solid var(--bdr);border-radius:var(--r-lg);padding:24px;min-height:400px}
.note-header-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:10px}
.note-header-bar h2{font-size:18px;font-weight:700}
.note-content{font-size:15px;line-height:1.8;color:var(--txt)}
.note-content h3{font-size:18px;margin:20px 0 10px;color:var(--txt)}
.note-content h4{font-size:15px;margin:16px 0 8px;color:var(--blue)}
.note-content ul{margin:8px 0 8px 20px;list-style:disc}
.note-content li{margin-bottom:6px}
.note-content p{margin-bottom:12px}

.note-sidebar{background:var(--card);border:1px solid var(--bdr);border-radius:var(--r-lg);overflow:hidden}
.note-sidebar h3{padding:14px 16px;font-size:14px;font-weight:700;border-bottom:1px solid var(--bdr2);display:flex;align-items:center;gap:8px}
.note-list-item{display:flex;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--bdr2);font-size:13px;color:var(--txt2);transition:var(--ease)}
.note-list-item:hover{background:var(--grad-soft)}
.note-list-item.active{background:var(--grad-soft);color:var(--blue);font-weight:600}
.nl-num{width:22px;height:22px;border-radius:50%;background:var(--bdr2);display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:700;flex-shrink:0}
.nl-title{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nl-check{color:var(--ok);flex-shrink:0}

/* ── PYQ / Syllabus ── */
.pyq-grid{display:flex;flex-direction:column;gap:12px}
.pyq-card{background:var(--card);border:1px solid var(--bdr);border-radius:var(--r-lg);padding:18px 20px;display:flex;align-items:center;gap:16px}
.pyq-icon{font-size:28px;color:var(--err);flex-shrink:0}
.pyq-info{flex:1;min-width:0}
.pyq-info h3{font-size:15px;font-weight:700;color:var(--txt)}
.pyq-year{font-size:12px;color:var(--txt3)}

/* ── Empty State ── */
.empty-state{text-align:center;padding:60px 20px;color:var(--txt3)}
.empty-state i{font-size:48px;margin-bottom:14px;opacity:.4}
.empty-state h3{font-size:18px;color:var(--txt);margin-bottom:6px}
.empty-text{padding:20px;text-align:center;color:var(--txt3);font-size:14px}
.empty-text a{color:var(--blue);font-weight:600}

/* ── Dashboard ── */
.dash-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:24px}
.dash-stat-card{background:var(--card);border:1px solid var(--bdr);border-radius:var(--r-lg);padding:18px;display:flex;align-items:center;gap:14px}
.ds-icon{width:48px;height:48px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.ds-num{font-size:22px;font-weight:800;color:var(--txt);display:block;line-height:1.2}
.ds-label{font-size:12px;color:var(--txt3);font-weight:500}

.dash-grid{display:grid;grid-template-columns:1fr 380px;gap:20px;align-items:start}
.dash-right{display:flex;flex-direction:column;gap:20px}

.subject-progress-list{padding:20px}
.sp-item{margin-bottom:18px;padding-bottom:18px;border-bottom:1px solid var(--bdr2)}
.sp-item:last-child{margin-bottom:0;padding-bottom:0;border-bottom:none}
.sp-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.sp-icon{font-size:16px;width:20px;text-align:center}
.sp-name{flex:1;font-weight:600;font-size:14px}
.sp-pct{font-weight:800;color:var(--blue);font-size:15px}
.sp-detail{display:flex;gap:16px;font-size:11px;color:var(--txt3);margin-top:6px}
.sp-detail i{margin-right:3px}

.activity-list{padding:16px;max-height:350px;overflow-y:auto}
.activity-item{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--bdr2)}
.activity-item:last-child{border-bottom:none}
.act-icon{width:32px;height:32px;border-radius:50%;background:var(--grad-soft);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:12px;color:var(--blue)}
.act-title{font-size:13px;font-weight:600;color:var(--txt);display:block}
.act-meta{font-size:11px;color:var(--txt3)}

.goals-preview{padding:16px}
.goal-mini{margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--bdr2)}
.goal-mini:last-child{margin-bottom:0;padding-bottom:0;border-bottom:none}
.gm-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.gm-title{font-size:14px;font-weight:700;color:var(--txt)}
.gm-days{font-size:11px;color:var(--txt3)}
.gm-pct{font-size:12px;color:var(--txt3);margin-top:4px}

/* ── Games ── */
.games-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-bottom:24px}
.game-card{background:var(--card);border:1px solid var(--bdr);border-radius:var(--r-lg);padding:24px;text-align:center;transition:var(--ease)}
.game-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md)}
.game-icon{width:56px;height:56px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:24px}
.game-card h3{font-size:16px;font-weight:700;margin-bottom:6px}
.game-card p{font-size:13px;color:var(--txt3);margin-bottom:14px;line-height:1.5}

.game-area{margin-top:10px}
.game-area-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--bdr2)}
.game-area-header h3{font-size:16px;font-weight:700}
.game-area-body{padding:24px}
.game-center{text-align:center;max-width:500px;margin:0 auto}
.game-question{font-size:32px;font-weight:800;margin:20px 0;color:var(--txt);background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.game-input{width:100%;max-width:300px;padding:12px 16px;border:2px solid var(--bdr);border-radius:var(--r-md);font-size:18px;text-align:center;outline:none;margin:0 auto;display:block}
.game-input:focus{border-color:var(--blue)}
.game-textarea{width:100%;padding:14px;border:2px solid var(--bdr);border-radius:var(--r-md);font-size:15px;outline:none;resize:none;font-family:var(--font)}
.game-textarea:focus{border-color:var(--blue)}
.game-timer{font-size:14px;color:var(--txt3);margin-bottom:10px}
.game-score{font-size:20px;margin:10px 0}
.typing-target{font-size:18px;font-weight:600;padding:16px;background:var(--grad-soft);border-radius:var(--r-md);margin-bottom:16px;line-height:1.7}

.memory-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;max-width:360px;margin:16px auto}
.mem-card{aspect-ratio:1;border-radius:var(--r-md);background:var(--grad);display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:28px;transition:var(--ease);position:relative}
.mem-front,.mem-back{position:absolute;backface-visibility:hidden}
.mem-front{color:#fff;font-weight:800;font-size:20px}
.mem-back{opacity:0}
.mem-card.flipped,.mem-card.matched{background:var(--card);border:2px solid var(--bdr)}
.mem-card.flipped .mem-front,.mem-card.matched .mem-front{opacity:0}
.mem-card.flipped .mem-back,.mem-card.matched .mem-back{opacity:1}
.mem-card.matched{border-color:var(--ok);opacity:.7}

/* ── Goals ── */
.goal-chapters-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin-bottom:10px;max-height:400px;overflow-y:auto;padding:12px;background:var(--bdr2);border-radius:var(--r-md)}
.goal-subject h4{font-size:14px;font-weight:700;color:var(--txt);margin-bottom:8px;display:flex;align-items:center;gap:6px}
.goal-subject h4 i{color:var(--blue)}
.goal-ch-item{display:flex;align-items:center;gap:8px;padding:6px 0;font-size:13px;color:var(--txt2);cursor:pointer}
.goal-ch-item input{accent-color:var(--blue)}

.goal-card{background:var(--card);border:1px solid var(--bdr);border-radius:var(--r-lg);padding:20px;margin-bottom:16px}
.goal-card.status-completed{border-color:var(--ok);background:color-mix(in srgb,var(--ok) 3%,var(--card))}
.goal-card.status-expired{opacity:.6}
.goal-top{display:flex;justify-content:space-between;align-items:start;gap:12px;margin-bottom:8px}
.goal-top h3{font-size:16px;font-weight:700}
.goal-meta-row{display:flex;gap:14px;font-size:12px;color:var(--txt3);margin-top:4px;flex-wrap:wrap}
.goal-meta-row i{margin-right:3px;color:var(--blue)}
.goal-status-badge{font-size:11px;font-weight:700;padding:4px 10px;border-radius:var(--r-full);white-space:nowrap}
.s-active{background:var(--inf-bg);color:var(--inf)}
.s-completed{background:var(--ok-bg);color:var(--ok)}
.s-expired{background:var(--err-bg);color:var(--err)}

.goal-items-list{display:flex;flex-direction:column;gap:4px}
.gi-item{display:flex;align-items:center;gap:8px;padding:6px 0;font-size:13px;color:var(--txt2)}
.gi-item.gi-done{text-decoration:line-through;opacity:.6}
.gi-check{color:var(--txt3);font-size:16px;cursor:pointer;transition:var(--ease);background:none;border:none;padding:2px}
.gi-check:hover{color:var(--blue)}
.gi-done .gi-check{color:var(--ok)}


/* ── RESPONSIVE ADDITIONS ── */
@media(max-width:1024px){
    .video-layout{grid-template-columns:1fr}
    .note-layout{grid-template-columns:1fr}
    .dash-grid{grid-template-columns:1fr}
    .dash-stats{grid-template-columns:repeat(2,1fr)}
}

@media(max-width:768px){
    .subjects-grid{grid-template-columns:repeat(2,1fr);gap:10px}
    .subject-card{padding:20px 14px}
    .subject-icon{width:44px;height:44px;font-size:18px}
    .chapter-card{padding:14px}
    .chapter-num{width:42px;height:42px;font-size:11px}
    .video-info-bar{flex-direction:column;align-items:flex-start}
    .dash-stats{grid-template-columns:1fr 1fr}
    .games-grid{grid-template-columns:1fr 1fr}
    .memory-grid{grid-template-columns:repeat(4,1fr);max-width:280px}
    .game-question{font-size:24px}
    .goal-chapters-grid{grid-template-columns:1fr}
    .page-header h1{font-size:20px}
    .goal-meta-row{flex-direction:column;gap:4px}
}

@media(max-width:480px){
    .subjects-grid{grid-template-columns:1fr}
    .dash-stats{grid-template-columns:1fr}
    .games-grid{grid-template-columns:1fr}
    .chapter-card{flex-wrap:wrap}
    .chapter-pct{width:100%;text-align:right}
}


/* ═══════════════════════════════════
   ADMIN PANEL
   ═══════════════════════════════════ */
.admin-tabs{display:flex;gap:4px;margin-bottom:20px;overflow-x:auto;padding-bottom:4px}
.atab{padding:10px 16px;border-radius:var(--r-sm);font-size:13px;font-weight:600;color:var(--txt2);background:var(--card);border:1px solid var(--bdr);cursor:pointer;transition:var(--ease);white-space:nowrap;display:flex;align-items:center;gap:6px}
.atab:hover{border-color:var(--blue);color:var(--blue)}
.atab.active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:var(--grad-glow)}
.atab i{font-size:12px}
.atab-content{display:none}
.atab-content.active{display:block}

.admin-table{width:100%;border-collapse:collapse;font-size:13px}
.admin-table th{text-align:left;padding:10px 12px;background:var(--bdr2);font-weight:600;color:var(--txt2);font-size:12px;text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--bdr)}
.admin-table td{padding:10px 12px;border-bottom:1px solid var(--bdr2);color:var(--txt);vertical-align:middle}
.admin-table tr:hover td{background:var(--grad-soft)}
.admin-table a{color:var(--blue);font-weight:500}

@media(max-width:768px){
    .admin-tabs{gap:3px}
    .atab{padding:8px 10px;font-size:11px}
    .atab span{display:none}
    .admin-table{font-size:12px}
    .admin-table th,.admin-table td{padding:8px 6px}
}


/* ═══════════════════════════════════
   AI CHATBOT
   ═══════════════════════════════════ */
.chatbot-btn{
    position:fixed;bottom:80px;right:20px;z-index:1500;
    width:56px;height:56px;border-radius:50%;
    background:var(--grad);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-size:24px;cursor:pointer;
    box-shadow:var(--grad-glow),0 4px 16px rgba(0,0,0,.2);
    transition:var(--ease);animation:pulse 2s ease-in-out infinite
}
.chatbot-btn:hover{transform:scale(1.1)}
.chatbot-btn.hide{transform:scale(0);opacity:0;pointer-events:none}

.chatbot-window{
    position:fixed;bottom:80px;right:20px;z-index:1500;
    width:380px;height:520px;max-height:80vh;
    background:var(--white);border-radius:var(--r-xl);
    box-shadow:var(--sh-xl);border:1px solid var(--bdr);
    display:flex;flex-direction:column;
    opacity:0;visibility:hidden;pointer-events:none;
    transform:translateY(20px) scale(.95);
    transition:var(--ease)
}
.chatbot-window.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0) scale(1)}

.cb-header{
    display:flex;align-items:center;justify-content:space-between;
    padding:14px 16px;background:var(--grad);color:#fff;
    border-radius:var(--r-xl) var(--r-xl) 0 0;flex-shrink:0
}
.cb-header-left{display:flex;align-items:center;gap:10px}
.cb-avatar{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:18px}
.cb-header strong{font-size:14px;display:block}
.cb-status{font-size:11px;opacity:.8}
.cb-close{color:#fff;font-size:18px;opacity:.7;padding:4px}
.cb-close:hover{opacity:1}

.cb-messages{
    flex:1;overflow-y:auto;padding:16px;
    display:flex;flex-direction:column;gap:12px;
    background:#fafbfd
}

.cb-msg{display:flex}
.cb-msg.user{justify-content:flex-end}
.cb-msg.bot{justify-content:flex-start}

.cb-bubble{
    max-width:85%;padding:10px 14px;
    border-radius:var(--r-md);font-size:13px;line-height:1.6;
    word-wrap:break-word
}
.cb-msg.bot .cb-bubble{background:var(--white);color:var(--txt);border:1px solid var(--bdr);border-bottom-left-radius:4px}
.cb-msg.user .cb-bubble{background:var(--grad);color:#fff;border-bottom-right-radius:4px}

.cb-bubble code{background:rgba(0,0,0,.06);padding:2px 5px;border-radius:3px;font-size:12px}

/* Typing animation */
.cb-typing{display:flex;gap:4px;padding:12px 16px!important;align-items:center}
.cb-typing span{width:8px;height:8px;border-radius:50%;background:var(--txt3);animation:typingDot 1.4s ease-in-out infinite}
.cb-typing span:nth-child(2){animation-delay:.2s}
.cb-typing span:nth-child(3){animation-delay:.4s}

@keyframes typingDot{
    0%,60%,100%{transform:translateY(0);opacity:.4}
    30%{transform:translateY(-6px);opacity:1}
}

.cb-input-area{
    display:flex;gap:8px;padding:12px 14px;
    border-top:1px solid var(--bdr);flex-shrink:0;
    border-radius:0 0 var(--r-xl) var(--r-xl);
    background:var(--white)
}
.cb-input-area input{
    flex:1;padding:10px 14px;border:2px solid var(--bdr);
    border-radius:var(--r-full);font-size:13px;outline:none;
    background:var(--bdr2);transition:var(--ease)
}
.cb-input-area input:focus{border-color:var(--blue);background:var(--white)}
.cb-input-area button{
    width:40px;height:40px;border-radius:50%;
    background:var(--grad);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-size:14px;transition:var(--ease);flex-shrink:0
}
.cb-input-area button:hover{transform:scale(1.05)}
.cb-input-area button:disabled{opacity:.5}

/* Mobile chatbot */
@media(max-width:768px){
    .chatbot-btn{bottom:calc(var(--mob-h) + 14px);right:14px;width:50px;height:50px;font-size:20px}
    .chatbot-window{
        bottom:0;right:0;left:0;width:100%;height:100%;max-height:100vh;
        border-radius:0
    }
    .cb-header{border-radius:0}
}

@media(min-width:769px){
    .chatbot-btn{bottom:24px}
    .chatbot-window{bottom:90px}
}