/* =============================================
   AYU Bar Prep — Public Styles
   ============================================= */

/* ---- CSS Variables ---- */
:root {
    --ayu-green: #1a5632;
    --ayu-green-dark: #0d3b1e;
    --ayu-green-light: #d1fae5;
    --ayu-green-bg: #f0fdf4;
    --ayu-gold: #c8a44e;
    --ayu-slate-700: #334155;
    --ayu-slate-500: #64748b;
    --ayu-slate-300: #cbd5e1;
    --ayu-slate-100: #f1f5f9;
    --ayu-slate-50: #f8fafc;
    --ayu-white: #ffffff;
    --ayu-red: #dc2626;
    --ayu-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --ayu-font-serif: 'Playfair Display', Georgia, serif;
    --ayu-radius: 10px;
}

/* ---- Buttons ---- */
.ayu-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 28px; border-radius: var(--ayu-radius);
    font-family: var(--ayu-font-sans); font-weight: 600; font-size: 0.925rem;
    transition: all 0.2s ease; cursor: pointer; border: none; text-decoration: none; line-height: 1.4;
}
.ayu-btn-primary { background: var(--ayu-green); color: var(--ayu-white); }
.ayu-btn-primary:hover { background: var(--ayu-green-dark); transform: translateY(-1px); color: #fff; }
.ayu-btn-outline { background: transparent; border: 2px solid var(--ayu-slate-300); color: var(--ayu-slate-700); }
.ayu-btn-outline:hover { border-color: var(--ayu-green); color: var(--ayu-green); }
.ayu-btn-full { width: 100%; justify-content: center; }
.ayu-btn-disabled { background: var(--ayu-slate-100); color: var(--ayu-slate-500); cursor: not-allowed; }

/* ---- Dashboard ---- */
.ayu-dashboard { max-width: 1100px; margin: 0 auto; padding: 120px 20px 40px; }
.ayu-dash-greeting { font-family: var(--ayu-font-serif); font-size: 1.75rem; color: #0f172a; margin-bottom: 32px; }
.ayu-empty-state { text-align: center; padding: 60px 20px; background: var(--ayu-slate-50); border-radius: var(--ayu-radius); border: 1px dashed var(--ayu-slate-300); }
.ayu-empty-state p { margin-bottom: 20px; color: var(--ayu-slate-500); font-family: var(--ayu-font-sans); }

.ayu-exam-cards { display: grid; gap: 20px; }
.ayu-exam-card { background: #fff; border: 1px solid #e2e8f0; border-radius: 14px; padding: 24px; transition: box-shadow 0.2s, border-color 0.2s; }
.ayu-exam-card:hover { box-shadow: 0 4px 24px rgba(0,0,0,0.06); }
.ayu-exam-card-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 12px; }
.ayu-exam-card-header h3 { font-family: var(--ayu-font-sans); font-size: 1.1rem; font-weight: 700; color: #0f172a; margin: 0; }
.ayu-exam-status { font-family: var(--ayu-font-sans); font-size: 0.78rem; font-weight: 600; padding: 4px 12px; border-radius: 100px; text-transform: uppercase; letter-spacing: 0.5px; }
.ayu-exam-status.active { background: #d1fae5; color: var(--ayu-green); }
.ayu-exam-status.completed { background: #e2e8f0; color: var(--ayu-slate-500); }
.ayu-exam-status.expired { background: #fee2e2; color: var(--ayu-red); }
.ayu-exam-meta { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 12px; font-family: var(--ayu-font-sans); font-size: 0.85rem; color: var(--ayu-slate-500); }
.ayu-exam-score { font-family: var(--ayu-font-sans); font-size: 1.1rem; font-weight: 700; color: var(--ayu-green); margin-bottom: 16px; }
.ayu-exam-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.ayu-dash-footer { margin-top: 32px; text-align: center; }

/* ---- Login / Register ---- */
.ayu-login-wrap { max-width: 460px; margin: 0 auto; padding: 120px 20px 40px; }
.ayu-login-card { background: #fff; border: 1px solid #e2e8f0; border-radius: 16px; padding: 40px 32px; box-shadow: 0 4px 24px rgba(0,0,0,0.04); }
.ayu-login-card h2 { font-family: var(--ayu-font-serif); font-size: 1.65rem; color: #0f172a; margin-bottom: 24px; text-align: center; }
.ayu-login-tabs { display: flex; gap: 0; margin-bottom: 24px; border-bottom: 2px solid #e2e8f0; }
.ayu-tab { flex: 1; padding: 12px; background: none; border: none; font-family: var(--ayu-font-sans); font-size: 0.95rem; font-weight: 600; color: var(--ayu-slate-500); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -2px; transition: color 0.2s, border-color 0.2s; }
.ayu-tab.active { color: var(--ayu-green); border-bottom-color: var(--ayu-green); }

.ayu-form { display: flex; flex-direction: column; gap: 14px; }
.ayu-form label { font-family: var(--ayu-font-sans); font-weight: 600; color: #0f172a; font-size: 0.88rem; }
.ayu-form input[type="text"], .ayu-form input[type="email"], .ayu-form input[type="password"] {
    padding: 12px 14px; border: 1.5px solid var(--ayu-slate-300); border-radius: 8px; font-family: var(--ayu-font-sans); font-size: 0.95rem; transition: border-color 0.2s; width: 100%;
}
.ayu-form input:focus { outline: none; border-color: var(--ayu-green); }
.ayu-checkbox-label { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.ayu-form-error { background: #fef2f2; color: var(--ayu-red); padding: 10px 14px; border-radius: 8px; font-family: var(--ayu-font-sans); font-size: 0.85rem; }
.ayu-form-success { background: #f0fdf4; color: var(--ayu-green); padding: 10px 14px; border-radius: 8px; font-family: var(--ayu-font-sans); font-size: 0.85rem; }
.ayu-forgot-link { text-align: center; margin-top: 4px; }
.ayu-forgot-link a { color: var(--ayu-slate-500); font-family: var(--ayu-font-sans); font-size: 0.85rem; cursor: pointer; }

/* ---- Instructions ---- */
.ayu-instructions-wrap { max-width: 760px; margin: 0 auto; padding: 120px 20px 40px; }
.ayu-instructions-card { background: #fff; border: 1px solid #e2e8f0; border-radius: 16px; padding: 40px; box-shadow: 0 4px 24px rgba(0,0,0,0.04); }
.ayu-instructions-card h2 { font-family: var(--ayu-font-serif); font-size: 1.75rem; color: #0f172a; margin-bottom: 16px; }
.ayu-timed-badge { display: inline-block; background: #d1fae5; color: var(--ayu-green); font-family: var(--ayu-font-sans); font-size: 0.85rem; font-weight: 700; padding: 6px 16px; border-radius: 100px; margin-bottom: 24px; }
.ayu-instructions-text { font-family: var(--ayu-font-sans); color: var(--ayu-slate-700); line-height: 1.8; margin-bottom: 28px; font-size: 0.95rem; white-space: pre-line; }
.ayu-instructions-check { margin-bottom: 20px; }
.ayu-instructions-check label { font-family: var(--ayu-font-sans); font-size: 0.95rem; color: var(--ayu-slate-700); display: flex; align-items: center; gap: 8px; cursor: pointer; }

/* ---- Exam Interface ---- */
.ayu-exam-wrap { max-width: 960px; margin: 0 auto; padding: 120px 20px 40px; }
.ayu-exam-topbar { display: flex; justify-content: space-between; align-items: center; padding: 12px 20px; background: var(--ayu-green-dark); color: #fff; border-radius: 12px 12px 0 0; font-family: var(--ayu-font-sans); }
.ayu-exam-timer { font-size: 1.3rem; font-weight: 700; letter-spacing: 0.5px; }
.ayu-exam-timer.warning { color: #fde68a; animation: pulse 1s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.6; } }
.ayu-exam-subject-tag { font-size: 0.82rem; opacity: 0.9; }
.ayu-exam-body { background: #fff; border: 1px solid #e2e8f0; border-top: none; padding: 32px; min-height: 400px; }
.ayu-exam-question-num { font-family: var(--ayu-font-sans); font-size: 0.82rem; color: var(--ayu-slate-500); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }
.ayu-exam-question-text { font-family: var(--ayu-font-sans); font-size: 1.05rem; color: #0f172a; line-height: 1.7; margin-bottom: 24px; font-weight: 500; }
.ayu-exam-options { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.ayu-exam-option { padding: 14px 16px; border: 2px solid #e2e8f0; border-radius: 10px; font-family: var(--ayu-font-sans); font-size: 0.95rem; color: var(--ayu-slate-700); cursor: pointer; transition: border-color 0.2s, background 0.2s; font-weight: 500; }
.ayu-exam-option:hover { border-color: var(--ayu-green); }
.ayu-exam-option.selected { border-color: var(--ayu-green); background: #f0fdf4; color: var(--ayu-green); }
.ayu-exam-short-answer input, .ayu-exam-long-answer textarea { width: 100%; padding: 14px; border: 2px solid #e2e8f0; border-radius: 10px; font-family: var(--ayu-font-sans); font-size: 0.95rem; }
.ayu-exam-short-answer input:focus, .ayu-exam-long-answer textarea:focus { outline: none; border-color: var(--ayu-green); }
.ayu-exam-long-answer textarea { min-height: 200px; resize: vertical; }
.ayu-exam-nav { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; background: var(--ayu-slate-50); border: 1px solid #e2e8f0; border-top: none; border-radius: 0 0 12px 12px; }
.ayu-exam-nav-btns { display: flex; gap: 10px; }
.ayu-exam-nav .ayu-btn { padding: 10px 20px; font-size: 0.85rem; }
.ayu-exam-palette { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 12px; }
.ayu-exam-palette-dot { width: 28px; height: 28px; border-radius: 6px; display: flex; align-items: center; justify-content: center; font-family: var(--ayu-font-sans); font-size: 0.72rem; font-weight: 600; cursor: pointer; border: 1.5px solid #e2e8f0; background: #fff; color: var(--ayu-slate-500); transition: all 0.15s; }
.ayu-exam-palette-dot.answered { background: #d1fae5; border-color: var(--ayu-green); color: var(--ayu-green); }
.ayu-exam-palette-dot.current { border-color: var(--ayu-green); border-width: 2.5px; font-weight: 700; }
.ayu-exam-submit-wrap { display: flex; gap: 10px; align-items: center; }
.ayu-exam-submit { background: var(--ayu-green) !important; }
.ayu-exam-submit:hover { background: var(--ayu-green-dark) !important; }

.ayu-exam-saved { font-family: var(--ayu-font-sans); font-size: 0.78rem; color: var(--ayu-green); font-weight: 600; opacity: 0; transition: opacity 0.3s; }
.ayu-exam-saved.show { opacity: 1; }

.ayu-warning-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.6); z-index: 99999; display: flex; align-items: center; justify-content: center; }
.ayu-warning-modal { background: #fff; border-radius: 16px; padding: 40px; max-width: 420px; text-align: center; }
.ayu-warning-modal h3 { font-family: var(--ayu-font-serif); font-size: 1.3rem; margin-bottom: 12px; }
.ayu-warning-modal p { font-family: var(--ayu-font-sans); color: var(--ayu-slate-500); margin-bottom: 20px; }

/* ---- Results ---- */
.ayu-results-wrap { max-width: 800px; margin: 0 auto; padding: 120px 20px 40px; }
.ayu-results-header { text-align: center; margin-bottom: 36px; }
.ayu-results-header h2 { font-family: var(--ayu-font-serif); font-size: 2rem; color: #0f172a; margin-bottom: 16px; }
.ayu-results-score { background: #fff; border: 2px solid var(--ayu-green); border-radius: 16px; padding: 24px; display: inline-block; }
.ayu-score-big { font-family: var(--ayu-font-serif); font-size: 2.5rem; font-weight: 800; color: var(--ayu-green); }
.ayu-score-percent { font-family: var(--ayu-font-sans); font-size: 1.1rem; color: var(--ayu-slate-500); margin-top: 4px; }

.ayu-results-list { display: flex; flex-direction: column; gap: 16px; }
.ayu-result-item { background: #fff; border: 1px solid #e2e8f0; border-radius: 12px; padding: 24px; }
.ayu-result-item.correct { border-left: 4px solid #22c55e; }
.ayu-result-item.incorrect { border-left: 4px solid var(--ayu-red); }
.ayu-result-q { margin-bottom: 12px; }
.ayu-result-q strong { font-family: var(--ayu-font-sans); color: #0f172a; }
.ayu-result-subject { font-family: var(--ayu-font-sans); font-size: 0.82rem; color: var(--ayu-slate-500); }
.ayu-result-text { font-family: var(--ayu-font-sans); color: var(--ayu-slate-700); margin-bottom: 14px; line-height: 1.65; }
.ayu-result-options { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.ayu-result-option { padding: 10px 14px; border-radius: 8px; font-family: var(--ayu-font-sans); font-size: 0.9rem; background: var(--ayu-slate-50); color: var(--ayu-slate-500); }
.ayu-result-option.correct-opt { background: #d1fae5; color: #065f46; font-weight: 600; border: 1px solid #22c55e; }
.ayu-result-option.wrong-opt { background: #fef2f2; color: var(--ayu-red); font-weight: 600; border: 1px solid var(--ayu-red); }
.ayu-result-explanation { background: #fef9f0; border: 1px solid #fde68a; border-radius: 8px; padding: 14px 16px; font-family: var(--ayu-font-sans); font-size: 0.88rem; color: #78350f; line-height: 1.6; margin-top: 12px; }
.ayu-results-footer { display: flex; gap: 14px; justify-content: center; margin-top: 36px; flex-wrap: wrap; }

/* ---- Profile ---- */
.ayu-profile-wrap { max-width: 820px; margin: 0 auto; padding: 120px 20px 60px; }
.ayu-profile-header { display: flex; align-items: center; gap: 20px; margin-bottom: 32px; flex-wrap: wrap; }
.ayu-profile-avatar { width: 72px; height: 72px; border-radius: 50%; background: var(--ayu-green); color: #fff; display: flex; align-items: center; justify-content: center; font-family: var(--ayu-font-serif); font-size: 2rem; font-weight: 700; flex-shrink: 0; }
.ayu-profile-header h2 { font-family: var(--ayu-font-serif); font-size: 1.8rem; color: #0f172a; margin: 0 0 4px; }
.ayu-profile-email { font-family: var(--ayu-font-sans); color: var(--ayu-slate-500); margin: 0; }
.ayu-profile-back { margin-left: auto; }
.ayu-profile-tabs { display: flex; gap: 0; margin-bottom: 24px; border-bottom: 2px solid #e2e8f0; }
.ayu-profile-tab { padding: 12px 20px; background: none; border: none; font-family: var(--ayu-font-sans); font-size: 0.95rem; font-weight: 600; color: var(--ayu-slate-500); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -2px; transition: color 0.2s, border-color 0.2s; }
.ayu-profile-tab.active { color: var(--ayu-green); border-bottom-color: var(--ayu-green); }
.ayu-profile-panel { background: #fff; border: 1px solid #e2e8f0; border-radius: 14px; padding: 32px; }
.ayu-profile-panel h3 { font-family: var(--ayu-font-serif); font-size: 1.4rem; color: #0f172a; margin: 0 0 16px; }
.ayu-history-list { display: flex; flex-direction: column; }
.ayu-history-item { display: flex; justify-content: space-between; align-items: center; padding: 16px 0; border-bottom: 1px solid #f1f5f9; font-family: var(--ayu-font-sans); }
.ayu-history-item:last-child { border-bottom: none; }
.ayu-history-item strong { color: #0f172a; display: block; margin-bottom: 4px; }
.ayu-history-date { font-size: 0.82rem; color: var(--ayu-slate-500); }
.ayu-history-status { font-size: 0.78rem; font-weight: 600; padding: 4px 12px; border-radius: 100px; text-transform: uppercase; letter-spacing: 0.5px; }
.ayu-history-status.completed { background: #d1fae5; color: var(--ayu-green); }
.ayu-history-status.pending { background: #fef3c7; color: #92400e; }
.ayu-history-status.expired { background: #fee2e2; color: var(--ayu-red); }
.ayu-history-status.refunded { background: #e2e8f0; color: var(--ayu-slate-500); }

/* ---- Purchase Modal ---- */
.ayu-modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.6); z-index: 99999; display: flex; align-items: center; justify-content: center; padding: 20px; }
.ayu-modal-card { background: #fff; border-radius: 16px; padding: 40px; max-width: 460px; width: 100%; position: relative; }
.ayu-modal-close { position: absolute; top: 16px; right: 16px; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--ayu-slate-500); line-height: 1; }
.ayu-modal-close:hover { color: #0f172a; }
.ayu-modal-card h3 { font-family: var(--ayu-font-serif); font-size: 1.5rem; color: #0f172a; margin: 0 0 8px; }
.ayu-modal-sub { font-family: var(--ayu-font-sans); color: var(--ayu-slate-500); margin: 0 0 20px; }
.ayu-modal-exam { background: var(--ayu-green-bg); border: 1px solid var(--ayu-green-light); border-radius: 10px; padding: 16px; margin-bottom: 20px; display: flex; justify-content: space-between; align-items: center; }
.ayu-modal-exam strong { font-family: var(--ayu-font-sans); color: #0f172a; }
.ayu-modal-price { font-family: var(--ayu-font-serif); font-weight: 700; color: var(--ayu-green); font-size: 1.1rem; }
.ayu-modal-details { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }
.ayu-modal-details > div { display: flex; justify-content: space-between; font-family: var(--ayu-font-sans); font-size: 0.88rem; color: var(--ayu-slate-500); }
.ayu-modal-details strong { color: #0f172a; }
.ayu-modal-card .ayu-btn { margin-bottom: 10px; }
.ayu-modal-card .ayu-btn:last-child { margin-bottom: 0; }

/* ---- Responsive ---- */
@media (max-width: 640px) {
    .ayu-dash-greeting { font-size: 1.35rem; }
    .ayu-exam-cards { gap: 14px; }
    .ayu-exam-card { padding: 18px; }
    .ayu-exam-card-header { flex-direction: column; gap: 8px; }
    .ayu-login-card { padding: 28px 20px; }
    .ayu-instructions-card { padding: 24px 20px; }
    .ayu-exam-body { padding: 20px 16px; }
    .ayu-exam-nav { flex-direction: column; gap: 12px; }
    .ayu-exam-nav-btns { width: 100%; justify-content: space-between; }
    .ayu-score-big { font-size: 2rem; }
}