/* ============================================
   تحدث-Speak Educational Platform
   Premium Light Purple Theme v2
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@300;400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ---- Custom Properties ---- */
:root {
    --primary: #7C3AED;
    --primary-light: #A78BFA;
    --primary-lighter: #C4B5FD;
    --primary-bg: #EDE9FE;
    --primary-bg-soft: #F5F3FF;
    --primary-dark: #5B21B6;
    --primary-darker: #4C1D95;
    --bg: #FAFAFF;
    --bg-white: #FFFFFF;
    --text: #1E1B3A;
    --text-secondary: #5B5280;
    --text-muted: #9590B0;
    --border: #E8E3F3;
    --border-light: #F0ECF9;
    --red: #DC2626;
    --red-bg: #FEF2F2;
    --red-border: #FECACA;
    --yellow: #CA8A04;
    --yellow-bg: #FEFCE8;
    --yellow-border: #FEF08A;
    --green: #16A34A;
    --green-bg: #F0FDF4;
    --green-border: #BBF7D0;
    --blue: #2563EB;
    --shadow-sm: 0 1px 3px rgba(124,58,237,0.06);
    --shadow: 0 4px 24px rgba(124,58,237,0.08);
    --shadow-lg: 0 12px 48px rgba(124,58,237,0.14);
    --shadow-xl: 0 20px 60px rgba(124,58,237,0.18);
    --radius: 14px;
    --radius-sm: 10px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
    --font-ar: 'Cairo', sans-serif;
    --font-en: 'Inter', sans-serif;
}

/* ---- Reset ---- */
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }

body {
    font-family: var(--font-ar);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.8;
}

body[data-lang="fr"],body[data-lang="en"] { font-family: var(--font-en); }
[dir="rtl"] { text-align:right; }
[dir="ltr"] { text-align:left; }

/* ---- Decorative Backgrounds ---- */
.bg-decoration {
    position:fixed; top:-250px; right:-250px;
    width:700px; height:700px;
    background:radial-gradient(circle,rgba(124,58,237,0.07) 0%,transparent 70%);
    border-radius:50%; pointer-events:none; z-index:0;
}
.bg-decoration-2 {
    position:fixed; bottom:-200px; left:-200px;
    width:600px; height:600px;
    background:radial-gradient(circle,rgba(167,139,250,0.06) 0%,transparent 70%);
    border-radius:50%; pointer-events:none; z-index:0;
}
.bg-decoration-3 {
    position:fixed; top:40%; left:50%;
    width:400px; height:400px;
    background:radial-gradient(circle,rgba(196,181,253,0.04) 0%,transparent 70%);
    border-radius:50%; pointer-events:none; z-index:0;
    transform:translateX(-50%);
}

/* ---- Screen System ---- */
.screen { display:none; min-height:100vh; width:100%; position:relative; z-index:1; }
.screen.active {
    display:flex; flex-direction:column; align-items:center;
    animation:fadeIn 0.5s ease;
}
@keyframes fadeIn {
    from { opacity:0; transform:translateY(10px); }
    to { opacity:1; transform:translateY(0); }
}

/* ============================================
   SPLASH SCREEN
   ============================================ */
#splash-screen {
    justify-content:center;
    background:linear-gradient(160deg,#F5F3FF 0%,#FFFFFF 40%,#EDE9FE 100%);
}

.splash-content { text-align:center; }

.splash-logo-wrap {
    position:relative;
    display:inline-block;
    animation:splashPop 1s ease both;
}

@keyframes splashPop {
    0% { opacity:0; transform:scale(0.5) rotate(-10deg); }
    60% { transform:scale(1.05) rotate(2deg); }
    100% { opacity:1; transform:scale(1) rotate(0); }
}

.splash-logo {
    width:220px; height:220px;
    border-radius:36px;
    object-fit:contain;
    box-shadow: var(--shadow-xl);
    position:relative;
    z-index:2;
}

.splash-logo-ring {
    position:absolute;
    inset:-12px;
    border:3px solid var(--primary-lighter);
    border-radius:42px;
    animation:ringPulse 2s ease-in-out infinite;
    z-index:1;
}

@keyframes ringPulse {
    0%,100% { opacity:0.4; transform:scale(1); }
    50% { opacity:0.8; transform:scale(1.04); }
}

.splash-loader {
    width:180px; height:4px;
    background:var(--border-light);
    border-radius:2px;
    margin:32px auto 0;
    overflow:hidden;
}

.splash-loader-bar {
    width:0; height:100%;
    background:linear-gradient(90deg,var(--primary),var(--primary-light));
    border-radius:2px;
    animation:loaderFill 2.5s ease-in-out forwards;
}

@keyframes loaderFill {
    0% { width:0; }
    100% { width:100%; }
}

/* ============================================
   WELCOME / LANDING SCREEN
   ============================================ */
#welcome-screen { min-height:100vh; }

.welcome-layout {
    display:grid;
    grid-template-columns:1.1fr 0.9fr;
    min-height:100vh;
    width:100%;
}

.welcome-info-side {
    display:flex;
    flex-direction:column;
    background:linear-gradient(170deg,#F5F3FF 0%,#FFFFFF 60%,#EDE9FE 100%);
    padding:24px 48px 48px;
    position:relative;
    overflow:hidden;
}

.welcome-info-side::after {
    content:'';
    position:absolute;
    top:0; bottom:0;
    left:0; /* will be overridden by RTL */
    width:4px;
    background:linear-gradient(180deg,var(--primary),var(--primary-light),var(--primary-lighter));
}

[dir="rtl"] .welcome-info-side::after { left:auto; right:0; }
[dir="ltr"] .welcome-info-side::after { left:0; right:auto; }

.welcome-lang-bar {
    display:flex;
    justify-content:flex-end;
    margin-bottom:20px;
}

.welcome-info-content {
    flex:1;
    display:flex;
    flex-direction:column;
    justify-content:center;
    max-width:560px;
}

.welcome-logo {
    width:160px; height:160px;
    border-radius:28px;
    object-fit:contain;
    box-shadow:var(--shadow-lg);
    margin-bottom:20px;
    animation:fadeIn 0.8s ease 0.3s both;
}

.welcome-title {
    font-size:2.4rem;
    font-weight:900;
    color:var(--primary-dark);
    margin-bottom:4px;
    letter-spacing:-0.5px;
    animation:fadeIn 0.8s ease 0.4s both;
}

.welcome-tagline {
    font-size:1rem;
    color:var(--text-muted);
    margin-bottom:16px;
    animation:fadeIn 0.8s ease 0.5s both;
}

.welcome-divider {
    width:60px; height:3px;
    background:linear-gradient(90deg,var(--primary),var(--primary-light));
    border-radius:2px;
    margin-bottom:20px;
    animation:fadeIn 0.8s ease 0.55s both;
}

.welcome-text {
    font-size:0.95rem;
    line-height:2;
    color:var(--text-secondary);
    text-align:justify;
    animation:fadeIn 0.8s ease 0.6s both;
}

/* Action Side (QR + Enter) */
.welcome-action-side {
    display:flex;
    align-items:center;
    justify-content:center;
    padding:48px 32px;
    background:var(--bg);
    position:relative;
}

.welcome-action-card {
    text-align:center;
    max-width:380px;
    width:100%;
    animation:fadeIn 0.8s ease 0.5s both;
}

/* QR Frame */
.qr-showcase { margin-bottom:24px; }

.qr-frame {
    position:relative;
    width:200px; height:200px;
    margin:0 auto 16px;
    padding:16px;
    background:white;
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-lg);
    display:flex;
    align-items:center;
    justify-content:center;
}

.qr-corner {
    position:absolute;
    width:24px; height:24px;
    border-color:var(--primary);
    border-style:solid;
    border-width:0;
}

.qr-tl { top:-3px; left:-3px; border-top-width:3px; border-left-width:3px; border-top-left-radius:12px; }
.qr-tr { top:-3px; right:-3px; border-top-width:3px; border-right-width:3px; border-top-right-radius:12px; }
.qr-bl { bottom:-3px; left:-3px; border-bottom-width:3px; border-left-width:3px; border-bottom-left-radius:12px; }
.qr-br { bottom:-3px; right:-3px; border-bottom-width:3px; border-right-width:3px; border-bottom-right-radius:12px; }

.qr-scan-line {
    position:absolute;
    width:calc(100% - 32px); height:2px;
    background:linear-gradient(90deg,transparent,var(--primary),transparent);
    left:16px; top:16px;
    box-shadow:0 0 12px rgba(124,58,237,0.4);
    animation:qrScan 3s ease-in-out infinite;
    z-index:3;
}

@keyframes qrScan {
    0%,100% { top:16px; opacity:0.5; }
    50% { top:calc(100% - 16px); opacity:1; }
}

.qr-img {
    width:160px; height:160px;
    object-fit:contain;
    position:relative;
    z-index:2;
}

.qr-hint {
    font-size:0.82rem;
    color:var(--text-muted);
    margin-top:4px;
}

/* OR Divider */
.welcome-or {
    display:flex;
    align-items:center;
    gap:16px;
    margin:20px 0;
    color:var(--text-muted);
    font-size:0.85rem;
}

.welcome-or::before, .welcome-or::after {
    content:'';
    flex:1;
    height:1px;
    background:var(--border);
}

/* Enter Button */
.btn-enter {
    display:flex;
    align-items:center;
    justify-content:center;
    gap:12px;
    width:100%;
    padding:18px 32px;
    background:linear-gradient(135deg,var(--primary),#9333EA,var(--primary-dark));
    color:white;
    border:none;
    border-radius:var(--radius);
    font-family:inherit;
    font-size:1.15rem;
    font-weight:700;
    cursor:pointer;
    transition:var(--transition);
    box-shadow:0 8px 32px rgba(124,58,237,0.35);
    position:relative;
    overflow:hidden;
}

.btn-enter::before {
    content:'';
    position:absolute;
    inset:0;
    background:linear-gradient(135deg,rgba(255,255,255,0.15),transparent);
    opacity:0;
    transition:opacity 0.3s;
}

.btn-enter:hover {
    transform:translateY(-3px);
    box-shadow:0 12px 40px rgba(124,58,237,0.45);
}

.btn-enter:hover::before { opacity:1; }

.btn-enter:active { transform:translateY(-1px); }

.btn-enter-icon { font-size:1.3rem; }

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
    position:sticky; top:0; z-index:100;
    width:100%;
    background:rgba(255,255,255,0.88);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    border-bottom:1px solid var(--border-light);
    padding:0 28px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:64px;
}

.nav-brand {
    display:flex; align-items:center; gap:12px;
    text-decoration:none; cursor:pointer;
}

.nav-logo {
    width:40px; height:40px;
    border-radius:12px;
    object-fit:contain;
    box-shadow:var(--shadow-sm);
}

.nav-title {
    font-size:1.2rem; font-weight:700;
    color:var(--primary);
}

/* Language Switcher */
.lang-switcher {
    display:flex; align-items:center;
    background:var(--primary-bg-soft);
    border:1px solid var(--border);
    border-radius:10px;
    padding:3px; gap:2px;
}

.lang-btn {
    padding:7px 16px;
    border:none;
    border-radius:8px;
    font-family:inherit;
    font-size:0.84rem;
    font-weight:600;
    cursor:pointer;
    transition:var(--transition);
    background:transparent;
    color:var(--text-secondary);
    white-space:nowrap;
}

.lang-btn:hover { background:rgba(124,58,237,0.08); color:var(--primary); }

.lang-btn.active {
    background:var(--primary);
    color:white;
    box-shadow:0 2px 10px rgba(124,58,237,0.3);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display:inline-flex; align-items:center; justify-content:center;
    gap:8px; padding:13px 32px;
    border:none; border-radius:var(--radius);
    font-family:inherit; font-size:1rem; font-weight:600;
    cursor:pointer; transition:var(--transition);
    text-decoration:none;
}

.btn-primary {
    background:linear-gradient(135deg,var(--primary),#9333EA);
    color:white;
    box-shadow:0 4px 16px rgba(124,58,237,0.3);
}

.btn-primary:hover { transform:translateY(-2px); box-shadow:0 6px 24px rgba(124,58,237,0.4); }

.btn-blue {
    background:linear-gradient(135deg,var(--blue),#3B82F6);
    color:white;
    box-shadow:0 4px 16px rgba(37,99,235,0.3);
}

.btn-blue:hover { transform:translateY(-2px); box-shadow:0 6px 24px rgba(37,99,235,0.4); }

.btn-outline {
    background:var(--bg-white);
    color:var(--primary);
    border:2px solid var(--primary-lighter);
}

.btn-outline:hover { background:var(--primary-bg-soft); border-color:var(--primary); }

.btn-sm { padding:10px 22px; font-size:0.92rem; border-radius:var(--radius-sm); }

.btn:disabled { opacity:0.5; cursor:not-allowed; transform:none !important; }

/* ============================================
   DASHBOARD
   ============================================ */
.dashboard-container {
    max-width:960px; width:100%;
    padding:28px 24px 60px;
    margin:0 auto;
}

.dashboard-header {
    text-align:center;
    margin-bottom:44px;
}

.dashboard-logo {
    width:100px; height:100px;
    border-radius:22px;
    object-fit:contain;
    box-shadow:var(--shadow);
    margin-bottom:16px;
}

.dashboard-header h1 {
    font-size:1.9rem; font-weight:800;
    color:var(--text); margin-bottom:6px;
}

.dashboard-header p {
    color:var(--text-muted); font-size:1rem;
}

.sections-grid {
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:20px;
}

.section-card {
    background:var(--bg-white);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    padding:32px 24px;
    cursor:pointer;
    transition:var(--transition);
    display:flex;
    flex-direction:column;
    align-items:center;
    text-align:center;
    gap:14px;
    position:relative;
    overflow:hidden;
}

.section-card::after {
    content:'';
    position:absolute;
    bottom:0; left:0; right:0;
    height:3px;
    background:linear-gradient(90deg,var(--primary),var(--primary-light));
    transform:scaleX(0);
    transition:transform 0.3s ease;
}

.section-card:hover {
    transform:translateY(-6px);
    box-shadow:var(--shadow-lg);
    border-color:var(--primary-lighter);
}

.section-card:hover::after { transform:scaleX(1); }

.section-icon {
    width:68px; height:68px;
    border-radius:20px;
    display:flex;
    align-items:center; justify-content:center;
    font-size:1.9rem;
}

.section-card:nth-child(1) .section-icon { background:var(--primary-bg); }
.section-card:nth-child(2) .section-icon { background:#ECFDF5; }
.section-card:nth-child(3) .section-icon { background:#EFF6FF; }
.section-card:nth-child(4) .section-icon { background:#FDF2F8; }

.section-card h3 { font-size:1.1rem; font-weight:700; color:var(--text); }
.section-card p { font-size:0.88rem; color:var(--text-muted); line-height:1.6; }

/* ============================================
   PAGE HEADER / BACK
   ============================================ */
.page-header {
    width:100%; max-width:860px;
    margin:0 auto;
    padding:20px 24px;
    display:flex; align-items:center; gap:14px;
}

.back-btn {
    width:42px; height:42px;
    border-radius:12px;
    border:1px solid var(--border);
    background:var(--bg-white);
    color:var(--text);
    font-size:1.2rem;
    cursor:pointer;
    display:flex; align-items:center; justify-content:center;
    transition:var(--transition);
    flex-shrink:0;
}

.back-btn:hover { background:var(--primary-bg-soft); border-color:var(--primary-lighter); color:var(--primary); }

.page-title { font-size:1.35rem; font-weight:700; color:var(--text); }

/* ============================================
   QUESTIONS
   ============================================ */
.questions-container {
    max-width:780px; width:100%;
    padding:0 24px 60px;
    margin:0 auto;
}

.progress-wrapper { margin-bottom:28px; text-align:center; }

.progress-bar {
    width:100%; height:6px;
    background:var(--border-light);
    border-radius:3px;
    overflow:hidden;
    margin-bottom:10px;
}

.progress-fill {
    height:100%;
    background:linear-gradient(90deg,var(--primary),var(--primary-light));
    border-radius:3px;
    transition:width 0.5s ease;
}

.progress-text { font-size:0.82rem; color:var(--text-muted); }

.axis-title,.phase-title {
    font-size:1rem; font-weight:700;
    color:var(--primary-dark);
    margin-bottom:20px;
    padding:12px 18px;
    background:var(--primary-bg-soft);
    border-radius:var(--radius-sm);
    display:flex; align-items:center; gap:8px;
    border-right:3px solid var(--primary);
}

[dir="ltr"] .axis-title,[dir="ltr"] .phase-title { border-right:none; border-left:3px solid var(--primary); }

.phase-title { border-right-color:var(--green); }
[dir="ltr"] .phase-title { border-left-color:var(--green); }

.question-card {
    background:var(--bg-white);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:28px 24px;
    margin-bottom:20px;
    transition:var(--transition);
    box-shadow:var(--shadow-sm);
}

.question-card:hover { box-shadow:var(--shadow); }

.question-number {
    display:inline-flex; align-items:center; justify-content:center;
    width:32px; height:32px;
    border-radius:50%;
    background:var(--primary);
    color:white;
    font-size:0.85rem; font-weight:700;
    margin-bottom:12px;
}

.question-text {
    font-size:1.02rem; line-height:1.9;
    color:var(--text); margin-bottom:20px;
}

.question-note {
    font-size:0.88rem; color:var(--text-muted);
    margin-bottom:14px; padding:10px 14px;
    background:var(--primary-bg-soft);
    border-radius:var(--radius-sm);
    font-style:italic;
}

.options-list { display:flex; flex-direction:column; gap:10px; }

.option-btn {
    display:flex; align-items:center; gap:12px;
    padding:14px 18px;
    border-radius:var(--radius-sm);
    border:1.5px solid var(--border);
    background:var(--bg-white);
    cursor:pointer;
    transition:var(--transition);
    width:100%;
    font-family:inherit;
    font-size:0.94rem;
    color:var(--text);
    text-align:inherit;
    line-height:1.6;
}

.option-color {
    width:14px; height:14px;
    border-radius:50%;
    flex-shrink:0;
    box-shadow:0 1px 4px rgba(0,0,0,0.1);
}

.option-btn[data-color="red"] .option-color { background:var(--red); }
.option-btn[data-color="yellow"] .option-color { background:var(--yellow); }
.option-btn[data-color="green"] .option-color { background:var(--green); }

.option-btn[data-color="red"]:hover,
.option-btn[data-color="red"].selected { background:var(--red-bg); border-color:var(--red); color:var(--red); }

.option-btn[data-color="yellow"]:hover,
.option-btn[data-color="yellow"].selected { background:var(--yellow-bg); border-color:var(--yellow); color:#92400E; }

.option-btn[data-color="green"]:hover,
.option-btn[data-color="green"].selected { background:var(--green-bg); border-color:var(--green); color:var(--green); }

/* Quiz Nav */
.quiz-nav {
    display:flex; justify-content:space-between;
    align-items:center;
    margin-top:28px; gap:16px;
}

/* ============================================
   RESULT MODAL
   ============================================ */
.modal-overlay {
    display:none; position:fixed; inset:0;
    background:rgba(30,27,58,0.45);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    z-index:1000;
    align-items:center; justify-content:center;
    padding:24px;
}

.modal-overlay.active { display:flex; animation:modalFade 0.25s ease; }

@keyframes modalFade { from { opacity:0; } to { opacity:1; } }

.modal-content {
    background:var(--bg-white);
    border:1px solid var(--border);
    border-radius:var(--radius-xl);
    padding:36px 30px;
    max-width:640px; width:100%;
    text-align:center;
    box-shadow:var(--shadow-xl);
    animation:modalSlide 0.35s ease;
    display:flex; flex-direction:column;
    max-height:90vh; overflow:hidden;
}

@keyframes modalSlide {
    from { transform:scale(0.92) translateY(16px); opacity:0; }
    to { transform:scale(1) translateY(0); opacity:1; }
}

.result-icon { font-size:3.2rem; margin-bottom:12px; display:inline-block; }
.result-title { font-size:1.35rem; font-weight:700; margin-bottom:8px; }
.result-title.result-green { color:var(--green); }
.result-title.result-yellow { color:var(--yellow); }
.result-title.result-red { color:var(--red); }

.result-description { color:var(--text-secondary); font-size:0.92rem; line-height:1.8; margin-bottom:8px; }

.result-note { font-size:0.8rem; color:var(--text-muted); margin-bottom:16px; font-style:italic; }

/* Breakdown */
.result-breakdown-wrapper {
    margin-top:12px; border-top:1.5px dashed var(--border);
    padding-top:14px; text-align:right;
    flex:1; overflow:hidden;
    display:flex; flex-direction:column;
}

[dir="ltr"] .result-breakdown-wrapper { text-align:left; }

.breakdown-title { font-size:1rem; font-weight:700; color:var(--text); margin-bottom:10px; }

.result-breakdown-list {
    overflow-y:auto; padding-right:6px;
    margin-bottom:16px; display:flex;
    flex-direction:column; gap:10px; flex:1;
}

[dir="ltr"] .result-breakdown-list { padding-right:0; padding-left:6px; }

.breakdown-card {
    background:var(--primary-bg-soft);
    border:1.5px solid var(--border);
    border-radius:var(--radius-sm);
    padding:12px 14px; font-size:0.85rem;
    display:flex; flex-direction:column; gap:6px;
    text-align:right;
}

[dir="ltr"] .breakdown-card { text-align:left; }

.breakdown-card.card-green { border-color:var(--green-border); background:var(--green-bg); }
.breakdown-card.card-yellow { border-color:var(--yellow-border); background:var(--yellow-bg); }
.breakdown-card.card-red { border-color:var(--red-border); background:var(--red-bg); }

.breakdown-q-text { font-weight:600; color:var(--text); }
.breakdown-user-ans { display:flex; align-items:center; gap:6px; font-weight:600; }
.breakdown-user-ans.ans-green { color:var(--green); }
.breakdown-user-ans.ans-yellow { color:var(--yellow); }
.breakdown-user-ans.ans-red { color:var(--red); }

.breakdown-correct-ans { display:flex; align-items:center; gap:6px; color:var(--text-secondary); }

.breakdown-explanation {
    font-size:0.8rem; color:var(--text-secondary);
    border-top:1px solid rgba(124,58,237,0.08);
    padding-top:4px;
}

/* ============================================
   THESIS / PDF
   ============================================ */
.thesis-container {
    max-width:960px; width:100%;
    padding:0 24px 40px;
    margin:0 auto;
    flex:1; display:flex; flex-direction:column;
}

.thesis-info {
    background:var(--bg-white);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:24px; margin-bottom:20px;
    box-shadow:var(--shadow-sm);
}

.thesis-meta-card {
    background: linear-gradient(135deg, var(--primary-bg-soft), var(--bg-white));
    border: 1px solid var(--primary-lighter);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
    border-right: 4px solid var(--primary);
    text-align: right;
}

[dir="ltr"] .thesis-meta-card {
    border-right: 1px solid var(--primary-lighter);
    border-left: 4px solid var(--primary);
    text-align: left;
}

.thesis-meta-title-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 6px;
    text-transform: uppercase;
}

.thesis-meta-title {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--primary-dark);
    line-height: 1.6;
    margin-bottom: 12px;
}

.thesis-meta-author {
    font-size: 0.95rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.thesis-meta-author strong {
    color: var(--text);
    font-weight: 700;
}

/* QR Modal content */
.qr-modal-content {
    max-width: 400px;
    padding: 28px 24px;
    align-items: center;
}

.btn-qr-toggle {
    transition: var(--transition);
}

.btn-qr-toggle:hover {
    background-color: var(--primary-bg) !important;
    border-color: var(--primary) !important;
    color: var(--primary-dark) !important;
    transform: translateY(-2px);
}

.thesis-info h3 { font-size:1.05rem; font-weight:700; margin-bottom:10px; color:var(--primary-dark); }
.thesis-info p { color:var(--text-secondary); line-height:1.8; font-size:0.95rem; }

.lesson-steps { display:flex; gap:10px; flex-wrap:wrap; margin-top:14px; }

.lesson-step {
    display:flex; align-items:center; gap:6px;
    padding:8px 14px;
    background:var(--primary-bg-soft);
    border-radius:var(--radius-sm);
    border:1px solid var(--border-light);
    font-size:0.82rem; color:var(--text-secondary); font-weight:500;
}

.pdf-viewer {
    flex:1; min-height:650px;
    border-radius:var(--radius);
    overflow:hidden;
    border:1px solid var(--border);
    background:var(--bg-white);
    box-shadow:var(--shadow-sm);
}

.pdf-viewer iframe { width:100%; height:100%; min-height:650px; border:none; }

/* ============================================
   SECRET BOX
   ============================================ */
.secret-container { max-width:680px; width:100%; padding:0 24px 60px; margin:0 auto; }

.secret-welcome {
    background:var(--bg-white);
    border:1px solid var(--border);
    border-radius:var(--radius-lg);
    padding:36px 28px; margin-bottom:24px;
    text-align:center; position:relative; overflow:hidden;
    box-shadow:var(--shadow-sm);
}

.secret-welcome::before {
    content:''; position:absolute;
    top:0; left:0; right:0; height:4px;
    background:linear-gradient(90deg,#EC4899,#F472B6,#FBCFE8);
}

.secret-welcome-icon { font-size:2.5rem; margin-bottom:12px; display:inline-block; }
.secret-welcome h2 { font-size:1.4rem; font-weight:700; color:#BE185D; margin-bottom:16px; }
.secret-welcome p { color:var(--text-secondary); line-height:2; text-align:justify; font-size:0.95rem; }

.secret-writing-area {
    background:var(--bg-white);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:24px 22px;
    box-shadow:var(--shadow-sm);
}

.secret-writing-area h3 { font-size:1rem; font-weight:700; margin-bottom:14px; color:var(--text); }

.secret-textarea {
    width:100%; min-height:180px;
    background:var(--bg);
    border:1.5px solid var(--border);
    border-radius:var(--radius-sm);
    padding:16px; color:var(--text);
    font-family:inherit; font-size:0.95rem;
    line-height:1.8; resize:vertical;
    transition:var(--transition);
}

.secret-textarea:focus { outline:none; border-color:var(--primary); box-shadow:0 0 0 3px rgba(124,58,237,0.1); background:var(--bg-white); }
.secret-textarea::placeholder { color:var(--text-muted); }

.secret-actions { display:flex; gap:12px; margin-top:14px; justify-content:flex-end; }

.save-indicator {
    font-size:0.85rem; color:var(--green);
    margin-top:10px; opacity:0;
    transition:opacity 0.3s;
    display:flex; align-items:center; gap:6px;
}

.save-indicator.show { opacity:1; }

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:var(--primary-lighter); border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background:var(--primary-light); }

/* ============================================
   NAVBAR ACTIONS (for assessment skip button)
   ============================================ */
.navbar-actions {
    display:flex; align-items:center; gap:12px;
}

/* Skip Button */
.btn-skip {
    background: var(--bg-white);
    color: var(--text-secondary);
    border-color: var(--border);
    font-size: 0.82rem;
    padding: 7px 16px;
    white-space: nowrap;
    transition: var(--transition);
}

.btn-skip:hover {
    background: var(--yellow-bg);
    border-color: var(--yellow);
    color: var(--yellow);
}

/* Dashboard header buttons row */
.dashboard-header-btns {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 18px;
}

/* Return to Welcome button */
.btn-welcome-return {
    transition: var(--transition);
}

.btn-welcome-return:hover {
    background-color: var(--primary-bg) !important;
    border-color: var(--primary) !important;
    color: var(--primary-dark) !important;
    transform: translateY(-2px);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width:900px) {
    .welcome-layout { grid-template-columns:1fr; }
    .welcome-info-side { padding:20px 24px 32px; }
    .welcome-info-side::after { display:none; }
    .welcome-action-side { padding:24px; }
    .welcome-logo { width:120px; height:120px; }
    .welcome-title { font-size:1.8rem; }
    .qr-frame { width:160px; height:160px; }
    .qr-img { width:128px; height:128px; }
}

@media (max-width:768px) {
    .sections-grid { grid-template-columns:1fr; gap:14px; }
    .splash-logo { width:160px; height:160px; border-radius:28px; }
    .splash-logo-ring { border-radius:34px; }
    .dashboard-logo { width:80px; height:80px; }
    .dashboard-header h1 { font-size:1.4rem; }
    .section-card { padding:24px 18px; }
    .modal-content { padding:28px 20px; }
    .navbar { padding:0 16px; }
    .lang-btn { padding:5px 12px; font-size:0.78rem; }
    .page-title { font-size:1.1rem; }
    .question-card { padding:20px 18px; }
    .lesson-steps { flex-direction:column; }
    .pdf-viewer,.pdf-viewer iframe { min-height:420px; }
    .navbar-actions { gap:8px; }
    .btn-skip { padding:5px 10px; font-size:0.75rem; }
    .dashboard-header-btns { flex-direction:column; align-items:center; }
}

@media (max-width:480px) {
    .splash-logo { width:140px; height:140px; }
    .btn { padding:11px 22px; font-size:0.92rem; }
    .btn-enter { font-size:1rem; padding:16px 24px; }
    .section-icon { width:56px; height:56px; font-size:1.5rem; border-radius:16px; }
    .lang-switcher { gap:1px; padding:2px; }
    .lang-btn { padding:4px 9px; font-size:0.74rem; }
    .nav-title { font-size:1rem; }
    .welcome-logo { width:100px; height:100px; }
    .welcome-title { font-size:1.5rem; }
    .qr-frame { width:140px; height:140px; }
    .qr-img { width:110px; height:110px; }
    .bg-decoration,.bg-decoration-2,.bg-decoration-3 { display:none; }
}