/* =============================================
   STYLE LIGHT MODE
   ============================================= */
:root {
    --primary: #6633CC;
    --primary-dark: #4A1A99;
    --primary-light: #9966FF;
    --secondary: #4A76B8;
    --accent: #E84A33;
    --success: #28A745;
    --danger: #DC3545;
    --gold: #F6AD55;
    --light: #F8F9FA;
    --dark: #0A1526;
    --bg: #f0f4f8;
    --text: #0A1526;
    --card-bg: #ffffff;
    --border: #E2E8F0;
    --input-bg: #ffffff;
    --shadow: 0 4px 20px rgba(10, 21, 38, 0.12);
    --gradient-bg: linear-gradient(135deg, #0A1526 0%, #060C17 50%, #1A0A3A 100%);
    --gradient-primary: linear-gradient(135deg, #6633CC 0%, #9966FF 100%);
    --gradient-accent: linear-gradient(135deg, #E84A33 0%, #FF6B4A 100%);
    --gradient-steel: linear-gradient(135deg, #4A76B8 0%, #658CCC 100%);
    --gradient-gold: linear-gradient(135deg, #F6AD55 0%, #ED8936 100%);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: background 0.3s, color 0.3s;
}

/* ===== BUTTONS ===== */
.btn-premium {
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50px;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    box-shadow: 0 10px 30px rgba(102, 51, 204, 0.35);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: 2px solid rgba(255,255,255,0.2);
    width: 100%;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
    position: relative;
    overflow: hidden;
    transform: translateY(0);
    letter-spacing: 0.3px;
    min-height: 54px;
}
.btn-premium::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
    transition: left 0.6s ease;
}
.btn-premium:hover::before { left: 100%; }
.btn-premium:hover { transform: translateY(-4px); box-shadow: 0 15px 40px rgba(102, 51, 204, 0.5); }
.btn-premium:active { transform: translateY(4px); box-shadow: 0 4px 15px rgba(102, 51, 204, 0.3); }
.btn-premium:disabled { opacity: 0.6; cursor: not-allowed; transform: none !important; }
.btn-premium-accent { background: var(--gradient-accent); box-shadow: 0 10px 30px rgba(232, 74, 51, 0.4); }
.btn-premium-accent:hover { box-shadow: 0 15px 40px rgba(232, 74, 51, 0.55); }
.btn-premium-gold { background: var(--gradient-gold); color: #1f2937; box-shadow: 0 10px 30px rgba(246, 173, 85, 0.4); text-shadow: 0 1px 2px rgba(255,255,255,0.3); }
.btn-premium-gold:hover { box-shadow: 0 15px 40px rgba(246, 173, 85, 0.55); }
.btn-premium-outline { background: transparent; color: var(--primary); border: 2.5px solid var(--primary); box-shadow: 0 8px 25px rgba(102, 51, 204, 0.15); text-shadow: none; }
.btn-premium-outline:hover { background: rgba(102, 51, 204, 0.08); transform: translateY(-4px); box-shadow: 0 15px 35px rgba(102, 51, 204, 0.25); }
.btn-premium-steel { background: var(--gradient-steel); box-shadow: 0 10px 30px rgba(74, 118, 184, 0.4); }
.btn-premium-steel:hover { box-shadow: 0 15px 40px rgba(74, 118, 184, 0.55); }
.btn-sm { padding: 10px 20px; font-size: 13px; min-height: 42px; border-radius: 40px; }
.btn-sm .material-icons { font-size: 18px; }

/* ===== SOCIAL BAR ===== */
.social-bar {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 998;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 14px 10px 14px 14px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 30px 0 0 30px;
    box-shadow: -5px 0 30px rgba(102, 51, 204, 0.15);
    border-left: 3px solid var(--primary);
}
.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 26px;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: none;
    cursor: pointer;
    box-shadow: 0 6px 15px rgba(0,0,0,0.15);
    position: relative;
    overflow: hidden;
    transform: translateY(0);
}
.social-btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}
.social-btn:hover::before { left: 100%; }
.social-btn:hover { transform: scale(1.15) translateX(-8px); box-shadow: 0 10px 25px rgba(0,0,0,0.25); }
.social-btn .material-icons { font-size: 26px; filter: drop-shadow(0 2px 3px rgba(0,0,0,0.2)); color: white; }
.social-btn.whatsapp { background: linear-gradient(135deg, #25D366, #128C7E); border: 2px solid rgba(255,255,255,0.3); box-shadow: 0 6px 15px rgba(37, 211, 102, 0.3); }
.social-btn.whatsapp:hover { box-shadow: 0 10px 25px rgba(37, 211, 102, 0.45); }
.social-btn.facebook { background: linear-gradient(135deg, #4F8DF7, #1877F2); border: 2px solid rgba(255,255,255,0.3); box-shadow: 0 6px 15px rgba(24, 119, 242, 0.3); }
.social-btn.facebook:hover { box-shadow: 0 10px 25px rgba(24, 119, 242, 0.45); }

/* ===== SPLASH ===== */
.splash-screen {
    position: fixed;
    inset: 0;
    background: var(--gradient-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.6s ease;
}
.splash-screen.hidden { opacity: 0; pointer-events: none; }
.splash-content { text-align: center; }
.splash-logo img { width: 80px; height: 80px; object-fit: contain; border-radius: 20px; box-shadow: 0 8px 30px rgba(102, 51, 204, 0.3); margin-bottom: 16px; }
.splash-title { font-size: 2.5rem; font-weight: 700; color: white; }
.splash-sub { color: #c4b5d4; font-size: 1.2rem; margin-bottom: 24px; }
.splash-dots { display: flex; gap: 8px; justify-content: center; }
.splash-dots span { width: 12px; height: 12px; border-radius: 50%; background: #9966FF; animation: bounce 1.4s infinite; }
.splash-dots span:nth-child(2) { animation-delay: 0.2s; }
.splash-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes bounce { 0%,80%,100%{transform:scale(0)} 40%{transform:scale(1)} }

/* ===== PWA ===== */
.pwa-overlay {
    position: fixed;
    inset: 0;
    background: rgba(6, 12, 23, 0.9);
    backdrop-filter: blur(10px);
    z-index: 9999;
    display: none;
    justify-content: center;
    align-items: center;
    padding: 20px;
}
.pwa-overlay.active { display: flex; }
.pwa-popup {
    background: white;
    border-radius: 24px;
    max-width: 440px;
    width: 100%;
    padding: 40px;
    text-align: center;
    box-shadow: 0 30px 80px rgba(0,0,0,0.4);
    border-top: 5px solid var(--primary);
    animation: modalSlideUp 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.pwa-popup .pwa-icon { width: 80px; height: 80px; margin: 0 auto 16px; border-radius: 20px; overflow: hidden; box-shadow: 0 8px 30px rgba(102, 51, 204, 0.3); }
.pwa-popup .pwa-icon img { width: 100%; height: 100%; object-fit: contain; }
.pwa-popup h2 { font-size: 24px; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.pwa-popup p { color: var(--secondary); font-size: 15px; margin-bottom: 20px; }
.pwa-popup .pwa-features { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; text-align: left; }
.pwa-popup .pwa-features .feature { display: flex; align-items: center; gap: 12px; padding: 8px 12px; background: var(--bg); border-radius: 10px; font-size: 14px; color: var(--text); }
.pwa-popup .pwa-features .feature .material-icons { color: var(--primary); font-size: 20px; }
.pwa-popup .pwa-buttons { display: flex; flex-direction: column; gap: 10px; }
.pwa-popup .pwa-skip { background: none; border: none; color: var(--secondary); font-size: 14px; cursor: pointer; padding: 8px; margin-top: 8px; transition: color 0.3s; }
.pwa-popup .pwa-skip:hover { color: var(--text); }

/* ===== AUTH ===== */
.auth-container { display: flex; justify-content: center; align-items: center; min-height: 100vh; background: var(--gradient-bg); padding: 20px; }
.auth-card { background: white; padding: 40px; border-radius: 16px; box-shadow: var(--shadow); width: 100%; max-width: 440px; border-top: 4px solid var(--primary); }
.auth-card .auth-logo { display: flex; align-items: center; justify-content: center; gap: 12px; margin-bottom: 16px; }
.auth-card .auth-logo img { height: 48px; width: auto; }
.auth-card .auth-logo h1 { margin: 0; font-size: 24px; background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.auth-card .subtitle { text-align: center; color: var(--secondary); margin-bottom: 20px; font-size: 14px; }
.auth-note { font-size: 12px; color: var(--secondary); text-align: center; margin-top: 8px; padding: 8px; background: rgba(102, 51, 204, 0.08); border-radius: 6px; }
.auth-tabs { display: flex; gap: 8px; margin-bottom: 24px; background: var(--bg); border-radius: 12px; padding: 4px; }
.auth-tab { flex: 1; padding: 10px; border: none; border-radius: 10px; background: transparent; font-weight: 600; cursor: pointer; transition: all 0.3s; color: var(--secondary); }
.auth-tab.active { background: var(--gradient-primary); color: white; box-shadow: 0 4px 15px rgba(102, 51, 204, 0.3); }

/* ===== FORM ===== */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: 600; font-size: 14px; color: var(--dark); }
.form-group input, .form-group select {
    width: 100%; padding: 12px 15px; border: 2px solid var(--border);
    border-radius: 8px; font-size: 14px; background: var(--input-bg);
    color: var(--text); transition: border-color 0.3s, box-shadow 0.3s;
}
.form-group input:focus, .form-group select:focus {
    outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(102, 51, 204, 0.2);
}
.password-wrapper { position: relative; }
.password-wrapper input { padding-right: 45px; }
.toggle-password {
    position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
    cursor: pointer; font-size: 18px; user-select: none; color: var(--secondary);
    padding: 4px; background: none; border: none;
}
.toggle-password:hover { color: var(--primary); }
.required { color: var(--accent); }
.error-msg { color: var(--danger); font-size: 13px; margin-top: 4px; display: none; }
.error-msg.hidden { display: none; }
.error-box { background: #fef2f2; color: #b91c1c; padding: 10px 16px; border-radius: 10px; font-size: 14px; }
.success-box { background: #ecfdf5; color: #065f46; padding: 10px 16px; border-radius: 10px; font-size: 14px; }
.helper-text { font-size: 12px; color: var(--secondary); margin-top: 4px; }

/* ===== LANGUAGE ===== */
.language-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 8px 0; }
.language-item { padding: 10px; border: 2px solid var(--border); border-radius: 12px; text-align: center; cursor: pointer; transition: all 0.3s; background: var(--input-bg); }
.language-item:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: 0 4px 15px rgba(102, 51, 204, 0.15); }
.language-item.selected { border-color: var(--primary); background: rgba(102, 51, 204, 0.08); box-shadow: 0 0 0 3px rgba(102, 51, 204, 0.2); }
.language-item .lang-flag { font-size: 28px; display: block; }
.language-item .lang-name { font-size: 12px; font-weight: 500; margin-top: 4px; color: var(--text); }

/* ===== SUBJECT ===== */
.subject-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.subject-card { cursor: pointer; }
.subject-card input { display: none; }
.subject-box { background: white; border: 2px solid var(--border); border-radius: 16px; padding: 20px; text-align: center; transition: all 0.3s; }
.subject-card input:checked + .subject-box { border-color: var(--primary); background: rgba(102, 51, 204, 0.06); box-shadow: 0 0 0 3px rgba(102, 51, 204, 0.2); }
.subject-box .material-icons { font-size: 32px; color: var(--primary); display: block; margin-bottom: 6px; }

/* ===== OPTIONAL ===== */
.optional-grid { display: flex; flex-wrap: wrap; gap: 12px; margin: 8px 0; }
.optional-grid label { display: flex; align-items: center; gap: 8px; font-size: 14px; cursor: pointer; padding: 6px 12px; background: var(--bg); border-radius: 20px; border: 1px solid var(--border); transition: 0.2s; }
.optional-grid label:hover { background: rgba(102, 51, 204, 0.06); }
.optional-grid input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--primary); }

/* ===== MODULES ===== */
.module-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; margin: 12px 0; }
.module-item { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border: 2px solid var(--border); border-radius: 8px; cursor: pointer; transition: all 0.3s; background: var(--input-bg); }
.module-item:hover { border-color: var(--primary); background: rgba(102,51,204,0.05); }
.module-item.selected { border-color: var(--primary); background: rgba(102,51,204,0.1); }
.module-item input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--primary); cursor: pointer; }
.module-item .module-name { font-size: 13px; font-weight: 500; color: var(--dark); cursor: pointer; }

/* ===== PACKAGES ===== */
.packages-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin: 20px 0; }
.package-card { background: white; border-radius: 16px; box-shadow: var(--shadow); overflow: hidden; transition: transform 0.3s, box-shadow 0.3s; border: 2px solid transparent; position: relative; }
.package-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.1); }
.package-card.popular { border-color: var(--primary); }
.package-card.premium { border-color: var(--gold); }
.package-badge { position: absolute; top: 12px; right: 12px; background: var(--gradient-primary); color: white; padding: 4px 14px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.package-header { padding: 20px 24px 0; text-align: center; }
.package-header h4 { font-size: 20px; font-weight: 700; color: var(--dark); }
.package-price { margin: 8px 0; }
.package-price .currency { font-size: 18px; font-weight: 600; color: var(--secondary); }
.package-price .amount { font-size: 36px; font-weight: 800; color: var(--dark); }
.package-price .period { font-size: 14px; color: var(--secondary); }
.package-body { padding: 16px 24px 20px; }
.package-features { list-style: none; padding: 0; }
.package-features .feature { padding: 6px 0; font-size: 14px; color: var(--secondary); display: flex; align-items: center; gap: 8px; }
.package-features .feature.included { color: var(--success); }
.package-footer { padding: 12px 24px 20px; text-align: center; }
.btn-package { width: 100%; padding: 12px; border: 2px solid var(--border); border-radius: 8px; background: white; font-size: 16px; font-weight: 600; cursor: pointer; transition: all 0.3s; color: var(--dark); }
.btn-package:hover { background: var(--bg); }
.btn-package.btn-primary { background: var(--gradient-primary); color: white; border-color: var(--primary); }
.btn-package.btn-primary:hover { box-shadow: 0 4px 20px rgba(102, 51, 204, 0.3); }
.btn-package.btn-gold { background: var(--gradient-gold); color: #1f2937; border-color: var(--gold); }
.btn-package.btn-gold:hover { box-shadow: 0 4px 20px rgba(246, 173, 85, 0.3); }

/* ===== PROFILE ===== */
.profile-container { position: relative; display: inline-block; }
.profile-trigger {
    display: flex; align-items: center; gap: 10px;
    background: rgba(255,255,255,0.15); backdrop-filter: blur(8px);
    padding: 6px 14px 6px 8px; border-radius: 50px;
    cursor: pointer; transition: all 0.3s ease;
    border: 1.5px solid rgba(255,255,255,0.2); user-select: none;
}
.profile-trigger:hover { background: rgba(255,255,255,0.25); border-color: rgba(255,255,255,0.4); transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,0,0,0.15); }
.profile-avatar { width: 36px; height: 36px; border-radius: 50%; background: var(--gradient-primary); display: flex; align-items: center; justify-content: center; color: white; font-weight: 700; font-size: 16px; box-shadow: 0 4px 12px rgba(102, 51, 204, 0.3); flex-shrink: 0; }
.profile-name { color: white; font-weight: 500; font-size: 14px; max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.profile-dropdown-icon { color: rgba(255,255,255,0.7); font-size: 20px; transition: transform 0.3s ease; }
.profile-dropdown-icon.open { transform: rotate(180deg); }
.profile-dropdown {
    position: absolute; top: calc(100% + 12px); right: 0;
    min-width: 280px; background: white; border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.25);
    opacity: 0; visibility: hidden; transform: translateY(-10px) scale(0.98);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 1000; overflow: hidden; border: 1px solid rgba(0,0,0,0.05);
}
.profile-dropdown.open { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
.profile-dropdown-header { padding: 20px 20px 16px; background: linear-gradient(135deg, #f0f4f8, #e8e0f0); border-bottom: 1px solid #e5e7eb; }
.profile-dropdown-username { font-weight: 700; font-size: 16px; color: #4A1A99; }
.profile-dropdown-email { font-size: 13px; color: #6b7280; margin-top: 2px; }
.profile-badge-wrap { margin-top: 8px; }
.badge-permanent { display: inline-block; padding: 2px 12px; border-radius: 20px; font-size: 11px; font-weight: 600; background: #fef3c7; color: #92400e; }
.dropdown-item { display: flex; align-items: center; gap: 14px; padding: 12px 20px; color: #374151; text-decoration: none; font-size: 14px; font-weight: 500; transition: all 0.2s ease; cursor: pointer; border: none; background: none; width: 100%; text-align: left; }
.dropdown-item:hover { background: #f3f4f6; }
.dropdown-item .material-icons { font-size: 22px; color: #6b7280; }
.dropdown-item.danger { color: #dc2626; }
.dropdown-item.danger .material-icons { color: #dc2626; }
.dropdown-item.danger:hover { background: #fef2f2; }
.dropdown-divider { height: 1px; background: #e5e7eb; margin: 4px 0; }

/* ===== MODAL ===== */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); z-index: 9999; display: none; justify-content: center; align-items: center; padding: 20px; }
.modal-overlay.active { display: flex; }
.modal-content { background: white; border-radius: 20px; max-width: 560px; width: 100%; max-height: 90vh; overflow-y: auto; box-shadow: 0 30px 80px rgba(0,0,0,0.3); animation: modalSlideUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); border-top: 4px solid var(--primary); }
.modal-header { padding: 24px 28px 20px; border-bottom: 1px solid #e5e7eb; display: flex; justify-content: space-between; align-items: center; }
.modal-header h2 { font-size: 20px; font-weight: 700; color: var(--dark); display: flex; align-items: center; gap: 12px; }
.modal-header h2 .material-icons { color: var(--primary); }
.modal-close-btn { width: 40px; height: 40px; border-radius: 50%; border: none; background: #f3f4f6; color: #6b7280; cursor: pointer; transition: all 0.3s ease; display: flex; align-items: center; justify-content: center; }
.modal-close-btn:hover { background: #e5e7eb; transform: rotate(90deg); }
.modal-body { padding: 24px 28px 28px; }
.modal-footer { padding: 16px 28px 24px; border-top: 1px solid #e5e7eb; display: flex; justify-content: flex-end; gap: 12px; }
@keyframes modalSlideUp { from { opacity: 0; transform: translateY(40px) scale(0.95); } to { opacity: 1; transform: translateY(0) scale(1); } }

/* ===== DEVICE CARD ===== */
.device-card { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border: 1px solid #e5e7eb; border-radius: 14px; margin-bottom: 12px; transition: all 0.3s ease; background: #fafafa; }
.device-card:hover { border-color: var(--primary); background: rgba(102, 51, 204, 0.05); transform: translateX(4px); box-shadow: 0 4px 15px rgba(102, 51, 204, 0.1); }
.device-card.current { border-color: var(--primary); background: rgba(102, 51, 204, 0.08); border-width: 2px; }
.device-card .device-icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.device-card .device-icon.mobile { background: #dbeafe; color: #2563eb; }
.device-card .device-icon.desktop { background: #d1fae5; color: #16a34a; }
.device-card .device-icon.unknown { background: #f3f4f6; color: #6b7280; }
.device-card .device-info { flex: 1; padding: 0 14px; }
.device-card .device-name { font-weight: 600; color: #1f2937; font-size: 14px; }
.device-card .device-detail { font-size: 12px; color: #6b7280; }
.device-status-badge { display: inline-flex; align-items: center; gap: 4px; padding: 4px 12px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.device-status-badge.active { background: #d1fae5; color: #065f46; }
.device-status-badge.permanent { background: #fef3c7; color: #92400e; }

/* ===== SPINNER & TOAST ===== */
.spinner-overlay { position: fixed; inset: 0; background: rgba(255,255,255,0.95); backdrop-filter: blur(5px); z-index: 9999; display: none; justify-content: center; align-items: center; flex-direction: column; }
.spinner-overlay.active { display: flex; }
.spinner { width: 60px; height: 60px; border: 4px solid #f3f3f3; border-top: 4px solid var(--primary); border-radius: 50%; animation: spin 1s linear infinite; margin-bottom: 20px; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
.spinner-message { font-size: 16px; color: var(--primary); text-align: center; font-weight: 500; }
.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(100px); background: var(--primary); color: white; padding: 12px 24px; border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.15); z-index: 1000; transition: transform 0.3s ease; display: flex; align-items: center; gap: 8px; max-width: 90%; }
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.error { background: var(--danger); }
.toast.success { background: var(--success); }
.toast.info { background: var(--primary); }
.toast.warning { background: var(--accent); }

/* ===== DEVICE LIMIT ===== */
.device-limit-screen { position: fixed; inset: 0; background: white; z-index: 9998; display: none; flex-direction: column; justify-content: center; align-items: center; padding: 20px; text-align: center; }
.device-limit-screen.active { display: flex; }
.limit-icon { width: 80px; height: 80px; background: #fef3c7; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-bottom: 24px; }
.limit-icon .material-icons { font-size: 40px; color: #f59e0b; }
.limit-devices { margin: 20px auto; max-width: 600px; width: 100%; }

/* ===== MAIN APP ===== */
.main-app { min-height: 100vh; background: var(--bg); }
.app-container { max-width: 1024px; margin: 0 auto; padding: 16px; }
.app-header {
    background: var(--gradient-bg);
    border-radius: 20px;
    padding: 16px 24px;
    margin-bottom: 24px;
    border: 1px solid rgba(128, 90, 213, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.header-left { display: flex; align-items: center; gap: 16px; }
.header-logo img { width: 48px; height: 48px; object-fit: contain; border-radius: 12px; background: rgba(255,255,255,0.05); padding: 4px; }
.header-left h1 { color: white; font-size: 1.5rem; font-weight: 700; }
.header-left p { color: #c4b5d4; font-size: 0.85rem; }
.header-right { display: flex; align-items: center; gap: 12px; }
.icon-btn { background: rgba(255,255,255,0.1); border: none; border-radius: 50%; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; color: white; cursor: pointer; transition: 0.3s; }
.icon-btn:hover { background: rgba(255,255,255,0.2); }

/* ===== FORM SECTION ===== */
.form-section { background: var(--card-bg); border-radius: 20px; padding: 24px; box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 16px; }
.time-group { display: flex; align-items: center; gap: 8px; }
.time-group input { flex: 1; }
.subject-section, .module-section, .packages-section, .raa-link { margin-bottom: 24px; }
.generate-wrap { display: flex; justify-content: flex-end; margin-top: 8px; }
.raa-link { text-align: center; padding-top: 16px; border-top: 1px solid var(--border); }
.raa-link p { color: var(--secondary); font-size: 14px; margin-bottom: 8px; }

/* ===== PREVIEW ===== */
.preview-section { margin-top: 24px; }
.preview-card { background: var(--card-bg); border-radius: 20px; box-shadow: var(--shadow); overflow: hidden; border-left: 4px solid var(--primary); }
.preview-header-bar {
    background: var(--gradient-primary);
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.preview-header-bar h2 { color: white; font-size: 1.2rem; font-weight: 700; }
.preview-header-bar p { color: rgba(255,255,255,0.8); font-size: 0.9rem; }
.preview-actions-bar { display: flex; gap: 8px; flex-wrap: wrap; }
.preview-actions-bar .btn-premium { width: auto; padding: 8px 16px; min-height: 36px; font-size: 12px; }
.preview-body { padding: 24px; }
.group-toggle { background: rgba(102,51,204,0.06); border-radius: 12px; padding: 16px; margin-bottom: 20px; border: 1px solid rgba(102,51,204,0.15); }
.group-toggle h4 { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--dark); }
.group-checkboxes { display: flex; gap: 20px; margin-top: 8px; }
.group-checkboxes label { display: flex; align-items: center; gap: 6px; font-size: 14px; cursor: pointer; }

/* ===== RPH PREVIEW TABLE ===== */
.rph-preview { overflow-x: auto; }
.rph-preview table { width: 100%; border-collapse: collapse; font-size: 11px; }
.rph-preview td { border: 1px solid #000; padding: 4px 8px; }
.rph-preview .bg-light { background: #f0f4f8; font-weight: 700; }
.rph-preview .preview-section-title { font-weight: 700; font-size: 12px; background: #e8e0f0; padding: 3px 8px; border-left: 3px solid var(--primary); margin-bottom: 4px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .auth-card { padding: 24px; margin: 0 12px; }
    .modal-content { max-width: 95%; border-radius: 16px; }
    .profile-dropdown { min-width: 240px; right: -20px; }
    .device-card { flex-direction: column; align-items: stretch; gap: 10px; }
    .preview-header-bar { flex-direction: column; align-items: stretch; }
    .preview-actions-bar { justify-content: center; }
    .packages-grid { grid-template-columns: 1fr; }
    .module-grid { grid-template-columns: 1fr 1fr; }
    .language-grid { grid-template-columns: repeat(2, 1fr); }
    .subject-grid { grid-template-columns: 1fr; }
    .optional-grid { flex-direction: column; align-items: stretch; }
}