/* Base Variables & Theme Setup - Premium Gift Edition */
:root {
    --primary-bg: #fdfbfb;
    --sidebar-bg: rgba(255, 255, 255, 0.85);
    --text-main: #2d3748;
    --text-muted: #718096;
    --border-color: rgba(237, 223, 230, 0.8);
    
    /* Vibrant Highlight Colors */
    --accent-blue: #8fa8ff;
    --accent-blue-bg: #f0f3ff;
    --accent-purple: #c4a1ff;
    --accent-purple-bg: #faf5ff;
    --accent-red: #ff9a9e;
    --accent-red-bg: #fff0f5;
    --accent-gold: #f6d365;
    --accent-gold-bg: #fffbeb;
    
    --hover-bg: rgba(246, 240, 243, 0.8);
    --card-bg: rgba(255, 255, 255, 0.9);
    
    /* Premium Shadows */
    --shadow-sm: 0 4px 6px -1px rgba(0,0,0,0.03), 0 2px 4px -1px rgba(0,0,0,0.02);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
    --shadow-hover: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    
    --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Global */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    display: flex;
    height: 100vh;
    overflow: hidden;
    background: linear-gradient(135deg, #f0fdfa 0%, #eff6ff 50%, #fdf4ff 100%);
}

/* Animations */
@keyframes slideUpFade {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}
.fade-in {
    animation: slideUpFade 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    opacity: 0;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

h1, h2, h3, h4, h5 { font-weight: 700; color: var(--text-main); }

/* Mobile Header */
.mobile-header {
    display: none;
    align-items: center;
    padding: 1rem;
    background-color: var(--sidebar-bg);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0; width: 100%; z-index: 50;
    box-shadow: var(--shadow-sm);
}
.mobile-header h1 { font-size: 1.25rem; margin-left: 1rem; background: linear-gradient(to right, var(--accent-blue), var(--accent-purple)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.menu-toggle { background: none; border: none; cursor: pointer; color: var(--text-main); display: flex; align-items: center; justify-content: center; }

/* Sidebar */
.sidebar {
    width: 300px;
    background-color: var(--sidebar-bg);
    backdrop-filter: blur(24px);
    border-right: 1px solid var(--border-color);
    display: flex; flex-direction: column; height: 100%; z-index: 60;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 4px 0 24px rgba(0,0,0,0.03);
}

.sidebar-header {
    padding: 2rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1rem;
}
.logo-icon {
    font-size: 2rem;
    animation: float 4s ease-in-out infinite;
}
.sidebar-header h2 {
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    background: linear-gradient(to right, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.sidebar-header p {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    margin-top: 0.25rem;
}

.module-list { list-style: none; overflow-y: auto; flex: 1; padding: 1.5rem 0; }
.module-item { padding: 0.25rem 1rem; }
.module-title {
    display: block; width: 100%; text-align: left; padding: 0.875rem 1.25rem;
    background: none; border: none; font-size: 0.95rem; font-weight: 600;
    color: var(--text-main); cursor: pointer; border-radius: 0.75rem;
    transition: var(--transition);
}
.module-title:hover { background-color: var(--hover-bg); transform: translateX(4px); }
.module-title.active { background-color: var(--hover-bg); color: var(--accent-blue); }

.topic-list { list-style: none; margin-top: 0.5rem; padding-left: 1.25rem; display: none; }
.module-item.open .topic-list { display: block; animation: slideUpFade 0.3s ease forwards; }
.topic-item { margin-bottom: 0.25rem; }
.topic-link {
    display: block; width: 100%; text-align: left; padding: 0.6rem 1rem;
    background: none; border: none; font-size: 0.875rem; color: var(--text-muted);
    cursor: pointer; border-radius: 0.5rem; transition: var(--transition); font-weight: 500;
}
.topic-link:hover { color: var(--text-main); background-color: var(--hover-bg); transform: translateX(4px); }
.topic-link.active { color: var(--accent-blue); background-color: var(--accent-blue-bg); font-weight: 600; box-shadow: var(--shadow-sm); }

/* Useful Links Section */
.useful-links-section {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    background-color: rgba(255,255,255,0.4);
}
.useful-links-section h3 { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700; }
.useful-links-list { list-style: none; }
.useful-links-list li { margin-bottom: 0.5rem; }
.useful-links-list button {
    width: 100%; text-align: left; background: none; border: none;
    color: var(--accent-blue); font-size: 0.9rem; font-weight: 600; cursor: pointer;
    padding: 0.6rem 0.75rem; border-radius: 0.5rem; transition: var(--transition); font-family: inherit;
    display: flex; align-items: center; gap: 0.5rem;
}
.useful-links-list button::before { content: '↗'; font-size: 1.1em; transition: transform 0.2s; }
.useful-links-list button:hover { background-color: var(--accent-blue-bg); color: #1d4ed8; }
.useful-links-list button:hover::before { transform: translate(2px, -2px); }

/* Main Content Area */
.main-content { flex: 1; display: flex; flex-direction: column; height: 100%; position: relative; }

/* Sticky Header */
.top-header {
    position: sticky; top: 0; padding: 1.5rem 2rem;
    background-color: rgba(255, 255, 255, 0.4); backdrop-filter: blur(20px);
    z-index: 30; border-bottom: 1px solid var(--border-color);
}
.header-wrapper {
    display: flex;
    gap: 1.25rem;
    align-items: center;
    max-width: 850px;
    margin: 0 auto;
}
.search-container { position: relative; flex: 1; }
.search-icon { position: absolute; left: 1.25rem; top: 50%; transform: translateY(-50%); color: var(--text-muted); transition: color 0.3s; }

.theme-toggle {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    color: var(--text-main);
    flex-shrink: 0;
}
.theme-toggle:hover {
    transform: rotate(15deg) scale(1.05);
    box-shadow: var(--shadow-md);
}
#searchInput {
    width: 100%; padding: 1rem 1.5rem 1rem 3.5rem;
    border: 2px solid transparent; border-radius: 9999px; font-size: 1rem;
    outline: none; transition: var(--transition); background-color: var(--card-bg);
    box-shadow: var(--shadow-md); font-family: inherit; font-weight: 500;
}
#searchInput::placeholder { color: var(--text-muted); opacity: 0.8; }
#searchInput:focus { border-color: var(--accent-blue); box-shadow: 0 0 0 4px var(--accent-blue-bg), var(--shadow-md); background-color: #fff; }
#searchInput:focus + .search-icon { color: var(--accent-blue); }

.content-container { flex: 1; overflow-y: auto; padding: 3rem 2rem; max-width: 850px; margin: 0 auto; width: 100%; scroll-behavior: smooth; }

/* Welcome Screen & Home */
.welcome-screen { color: var(--text-muted); }
.gift-icon { font-size: 5rem; margin-bottom: 1.5rem; animation: float 4s ease-in-out infinite; filter: drop-shadow(0 10px 15px rgba(0,0,0,0.1)); text-align: center; }

/* Home Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}
.tool-card {
    padding: 1.5rem;
    cursor: pointer;
    margin-bottom: 0;
    text-align: left;
}
.tool-card:hover {
    border-color: var(--accent-blue);
}
.tool-card .tool-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: inline-block;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.tool-card:hover .tool-icon {
    transform: scale(1.1) rotate(5deg);
}
.tool-card h4 {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}
.tool-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Premium Pomodoro UX */
.pomodoro-container {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 2rem 1rem;
}
.pomodoro-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.pomodoro-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.pomodoro-timer-wrapper {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto 3rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
}
.pomodoro-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}
.pomodoro-ring-bg {
    fill: none;
    stroke: var(--border-color);
    stroke-width: 8;
}
.pomodoro-ring-progress {
    fill: none;
    stroke: var(--accent-blue);
    stroke-width: 12;
    stroke-linecap: round;
    stroke-dasharray: 816;
    stroke-dashoffset: 0;
    transition: stroke-dashoffset 1s linear, stroke 0.3s;
    filter: drop-shadow(0 0 10px rgba(59, 130, 246, 0.4));
}
[data-theme="dark"] .pomodoro-ring-progress {
    filter: drop-shadow(0 0 15px rgba(96, 165, 250, 0.5));
}

.pomodoro-time-display {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
}
#pomodoroTimeLarge {
    font-size: 4.5rem;
    font-weight: 800;
    color: var(--text-main);
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
    line-height: 1;
}
.pomodoro-status {
    margin-top: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.pomodoro-controls-main {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
}
.pomodoro-btn {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background: var(--card-bg);
    color: var(--text-main);
}
.pomodoro-btn:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-hover);
}
.pomodoro-btn.play-btn {
    background: var(--accent-blue);
    color: white;
    width: 80px;
    height: 80px;
    font-size: 2rem;
}
.pomodoro-btn.play-btn:hover {
    background: #1d4ed8;
}
.pomodoro-btn.play-btn.paused {
    background: var(--accent-gold);
}
[data-theme="dark"] .pomodoro-btn.play-btn:hover {
    background: #3b82f6;
}

.pomodoro-presets {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 1.5rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}
.preset-group {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}
.preset-group button {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 0.5rem 1.25rem;
    border-radius: 999px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.preset-group button:hover {
    background: var(--hover-bg);
    color: var(--text-main);
}
.preset-group button.active {
    background: var(--accent-blue-bg);
    color: var(--accent-blue);
    border-color: rgba(59, 130, 246, 0.3);
}

.custom-time-input {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}
.custom-time-input input {
    background: var(--primary-bg);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.75rem 1.25rem;
    border-radius: 999px;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    width: 150px;
    transition: var(--transition);
}
.custom-time-input input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px var(--accent-blue-bg);
}
.custom-time-input button {
    background: var(--text-main);
    color: var(--primary-bg);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 999px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.custom-time-input button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Topic Headers and Cards */
.topic-header { margin-bottom: 2.5rem; }
.topic-header h1 { font-size: 2.5rem; letter-spacing: -0.03em; margin-bottom: 1rem; color: var(--text-main); }

.card {
    background-color: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.75rem 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.card::before { content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%; border-radius: 4px 0 0 4px; }
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px) scale(1.01); }

.card h3 { font-size: 1.25rem; margin-bottom: 1.25rem; display: flex; align-items: center; gap: 0.5rem; padding-bottom: 0.75rem; border-bottom: 1px solid var(--border-color); }
.card ul { list-style: none; }
.card ul li { position: relative; padding-left: 1.75rem; margin-bottom: 0.75rem; line-height: 1.6; font-size: 1rem; color: var(--text-main); }
.card ul li::before { content: "✨"; position: absolute; left: 0; top: 1px; font-size: 1rem; opacity: 0.7; }

/* General Card */
.card.general::before { background-color: var(--accent-gold); }
.card.general h3 { color: var(--accent-gold); border-bottom-color: var(--accent-gold-bg); }

/* Sections Card */
.card.sections::before { background-color: var(--accent-blue); }
.card.sections h3 { color: var(--accent-blue); border-bottom-color: var(--accent-blue-bg); }
.card.sections ul li::before { content: "📌"; }

/* Traps Card */
.card.traps { background-color: rgba(255,241,242,0.6); border-color: rgba(254,205,211,0.8); }
.card.traps::before { background-color: var(--accent-red); }
.card.traps h3 { color: var(--accent-red); border-bottom-color: rgba(254,205,211,0.5); }
.card.traps ul li::before { content: "❗"; }

/* Cases Card */
.card.cases { background-color: rgba(245,243,255,0.6); border-color: rgba(221,214,254,0.8); }
.card.cases::before { background-color: var(--accent-purple); }
.card.cases h3 { color: var(--accent-purple); border-bottom-color: rgba(237,233,254,0.5); }

.tag-section {
    display: inline-block; padding: 0.4rem 1.2rem; background-color: var(--accent-blue-bg); color: var(--accent-blue);
    border-radius: 9999px; font-size: 0.95rem; font-weight: 600; margin-right: 0.5rem; margin-bottom: 0.5rem;
    text-decoration: none; transition: var(--transition); border: 1px solid rgba(59,130,246,0.2); cursor: pointer; font-family: inherit;
    box-shadow: var(--shadow-sm);
}
.tag-section:hover { background-color: var(--accent-blue); color: #ffffff; transform: translateY(-3px); box-shadow: var(--shadow-md); }

.case-name {
    font-weight: 700; color: var(--accent-purple); margin-bottom: 0.75rem; font-size: 1.1rem;
    background: none; border: none; text-align: left; cursor: pointer; font-family: inherit; padding: 0;
    display: inline-flex; align-items: center; gap: 0.4rem; transition: var(--transition);
}
.case-name:hover { color: #6d28d9; transform: translateX(6px); }
.case-summary { font-size: 1rem; line-height: 1.6; color: var(--text-main); }

/* Live Search Results UI */
.search-results-list { list-style: none; }
.search-result-item { background: var(--card-bg); padding: 1.5rem; border: 1px solid var(--border-color); border-radius: 1rem; margin-bottom: 1rem; cursor: pointer; transition: var(--transition); box-shadow: var(--shadow-sm); }
.search-result-item:hover { border-color: var(--accent-blue); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.search-result-title { font-weight: 700; color: var(--text-main); font-size: 1.15rem; margin-bottom: 0.35rem; }
.search-result-module { font-size: 0.9rem; color: var(--text-muted); font-weight: 500; }
.search-result-item.web-search-item { border-color: rgba(59,130,246,0.4); background: linear-gradient(to right, #eff6ff, #ffffff); }
.search-result-item.web-search-item:hover { background: #dbeafe; }

/* Sidebar Dark Overlay for Mobile */
.sidebar-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(15, 23, 42, 0.4); backdrop-filter: blur(4px); z-index: 55; opacity: 0; transition: opacity 0.3s ease; }

/* Webview Modal Styles */
.modal-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(15, 23, 42, 0.6); backdrop-filter: blur(8px); z-index: 100; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: all 0.3s ease; }
.modal-overlay.show { opacity: 1; visibility: visible; }
.modal-content { background: var(--primary-bg); width: 95%; max-width: 1100px; height: 90vh; border-radius: 1.25rem; display: flex; flex-direction: column; overflow: hidden; box-shadow: 0 25px 50px -12px rgba(0,0,0,0.3); transform: translateY(20px) scale(0.95); transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); }
.modal-overlay.show .modal-content { transform: translateY(0) scale(1); }
.modal-header { padding: 1.25rem 1.75rem; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; background: rgba(255,255,255,0.9); backdrop-filter: blur(10px); }
.modal-header h3 { margin: 0; font-size: 1.25rem; color: var(--text-main); background: linear-gradient(to right, var(--accent-blue), var(--accent-purple)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; font-weight: 700; }
.modal-close { background: none; border: none; font-size: 2rem; line-height: 1; cursor: pointer; color: var(--text-muted); transition: var(--transition); border-radius: 50%; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; }
.modal-close:hover { background-color: var(--accent-red-bg); color: var(--accent-red); transform: rotate(90deg); }
.modal-body { flex: 1; width: 100%; background: #fff; }
.modal-body iframe { width: 100%; height: 100%; border: none; }

/* Responsive */
@media (max-width: 768px) {
    .mobile-header { display: flex; }
    .sidebar { position: fixed; transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .sidebar-overlay.show { display: block; opacity: 1; }
    .main-content { padding-top: 4.5rem; }
    .top-header { padding: 1rem; }
    .content-container { padding: 2rem 1rem; }
}

/* Dark Mode Theme */
[data-theme="dark"] {
    --primary-bg: #1a1625;
    --sidebar-bg: rgba(26, 22, 37, 0.85);
    --text-main: #fdfbfb;
    --text-muted: #a0aec0;
    --border-color: rgba(68, 51, 79, 0.8);
    
    --accent-blue: #a3bffa;
    --accent-blue-bg: rgba(163, 191, 250, 0.15);
    --accent-purple: #d6bcfa;
    --accent-purple-bg: rgba(214, 188, 250, 0.15);
    --accent-red: #fc8181;
    --accent-red-bg: rgba(252, 129, 129, 0.15);
    --accent-gold: #f6e05e;
    --accent-gold-bg: rgba(246, 224, 94, 0.15);
    
    --hover-bg: rgba(42, 33, 57, 0.8);
    --card-bg: rgba(42, 33, 57, 0.6);
    
    --shadow-sm: 0 4px 6px -1px rgba(0,0,0,0.3), 0 2px 4px -1px rgba(0,0,0,0.2);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.4), 0 4px 6px -2px rgba(0,0,0,0.2);
    --shadow-hover: 0 20px 25px -5px rgba(0,0,0,0.5), 0 10px 10px -5px rgba(0,0,0,0.3);
}

[data-theme="dark"] body {
    background: linear-gradient(135deg, #13111C 0%, #1a1625 50%, #2A2139 100%);
}

[data-theme="dark"] #searchInput {
    background-color: rgba(26, 22, 37, 0.8);
    color: var(--text-main);
}
[data-theme="dark"] #searchInput:focus {
    background-color: rgba(42, 33, 57, 1);
}
[data-theme="dark"] .useful-links-section {
    background-color: rgba(26, 22, 37, 0.4);
}
[data-theme="dark"] .top-header {
    background-color: rgba(26, 22, 37, 0.5);
}
[data-theme="dark"] .modal-header {
    background: rgba(42, 33, 57, 0.95);
}
[data-theme="dark"] .modal-body {
    background: var(--primary-bg);
}
[data-theme="dark"] .search-result-item.web-search-item {
    background: linear-gradient(to right, rgba(59, 130, 246, 0.15), rgba(30, 41, 59, 0.6));
}
[data-theme="dark"] .search-result-item.web-search-item:hover {
    background: rgba(59, 130, 246, 0.25);
}
[data-theme="dark"] .card.traps { 
    background-color: rgba(244, 63, 94, 0.08); 
    border-color: rgba(244, 63, 94, 0.2); 
}
[data-theme="dark"] .card.traps h3 { 
    border-bottom-color: rgba(244, 63, 94, 0.2); 
}
[data-theme="dark"] .card.cases { 
    background-color: rgba(139, 92, 246, 0.08); 
    border-color: rgba(139, 92, 246, 0.2); 
}
[data-theme="dark"] .card.cases h3 { 
    border-bottom-color: rgba(139, 92, 246, 0.2); 
}

/* Gift Opening Overlay */
.gift-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--primary-bg);
    z-index: 99999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity 0.8s ease-in-out, visibility 0.8s;
}

.gift-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.gift-box {
    font-size: 8rem;
    cursor: pointer;
    animation: floatGift 3s ease-in-out infinite;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    filter: drop-shadow(0 20px 30px rgba(0,0,0,0.15));
}

.gift-box:hover {
    transform: scale(1.1);
}

.gift-box.opening {
    animation: shakeGift 0.6s cubic-bezier(.36,.07,.19,.97) both;
}

.gift-text {
    margin-top: 2rem;
    font-size: 1.5rem;
    color: var(--text-muted);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    animation: pulseText 2s infinite;
    transition: opacity 0.3s;
}

@keyframes floatGift {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(3deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

@keyframes shakeGift {
    0% { transform: translateX(0) scale(1.1); }
    15% { transform: translateX(-15px) rotate(-15deg) scale(1.15); }
    30% { transform: translateX(15px) rotate(15deg) scale(1.15); }
    45% { transform: translateX(-15px) rotate(-15deg) scale(1.15); }
    60% { transform: translateX(15px) rotate(15deg) scale(1.15); }
    75% { transform: translateX(-15px) rotate(-15deg) scale(1.15); }
    100% { transform: translateX(0) scale(1.8); opacity: 0; filter: blur(10px); }
}

@keyframes pulseText {
    0% { opacity: 0.4; }
    50% { opacity: 1; }
    100% { opacity: 0.4; }
}

@keyframes bounceShake {
    0% { transform: scale(1); }
    20% { transform: scale(1.2) rotate(-10deg); }
    40% { transform: scale(1.2) rotate(10deg); }
    60% { transform: scale(1.2) rotate(-10deg); }
    80% { transform: scale(1.2) rotate(10deg); }
    100% { transform: scale(1); }
}
[data-theme="dark"] .case-name:hover {
    color: #c4b5fd;
}
[data-theme="dark"] .useful-links-list button:hover {
    color: #93c5fd;
}