:root {
    --bg-dark: #05070a;
    --card-bg: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent-blue: #38bdf8;
    --accent-purple: #818cf8;
    --accent-green: #34d399;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Aurora Background Effect */
.aura-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at 20% 30%, rgba(56, 189, 248, 0.15) 0%, transparent 40%),
                radial-gradient(circle at 80% 70%, rgba(129, 140, 248, 0.15) 0%, transparent 40%);
    filter: blur(80px);
    animation: aura-move 20s infinite alternate;
}

@keyframes aura-move {
    0% { transform: scale(1) translate(0, 0); }
    100% { transform: scale(1.1) translate(2%, 2%); }
}

.dashboard-container {
    width: 100%;
    max-width: 1200px;
    padding: 2rem;
    animation: fade-in 1s ease-out;
}

@keyframes fade-in {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Glassmorphism Utility */
.glass {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

/* Header Styles */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2.5rem;
    margin-bottom: 2rem;
}

.greeting-area h1 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, #fff, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.greeting-area p {
    color: var(--text-muted);
    font-style: italic;
    font-size: 1.1rem;
}

.main-clock-area {
    text-align: right;
}

.time-display {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--accent-blue);
    letter-spacing: -2px;
}

.date-display {
    font-size: 1.1rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Grid Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.card {
    padding: 1.5rem;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.5);
}

.card h3 {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card.large {
    grid-column: span 2;
    grid-row: span 2;
}

/* Timezone List */
.timezone-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border-color);
}

.timezone-item:last-child { border-bottom: none; }
.timezone-city { font-weight: 600; }
.timezone-time { color: var(--accent-purple); font-family: monospace; font-size: 1.1rem; }

/* Weather Section */
.weather-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem 0;
}

.temp-main {
    font-size: 3rem;
    font-weight: 700;
    font-family: var(--font-heading);
    margin-bottom: 0.5rem;
}

.weather-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-muted);
}

/* To-do List Section */
#todo-form {
    margin-bottom: 1.5rem;
}

#todo-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    color: white;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all 0.3s ease;
}

#todo-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: rgba(255, 255, 255, 0.08);
}

#todo-list {
    list-style: none;
    max-height: 300px;
    overflow-y: auto;
}

.todo-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    margin-bottom: 0.8rem;
    transition: all 0.2s ease;
    animation: slide-in 0.3s ease-out;
}

@keyframes slide-in {
    from { opacity: 0; transform: translateX(-10px); }
    to { opacity: 1; transform: translateX(0); }
}

.todo-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.todo-item input[type="checkbox"] {
    margin-right: 1rem;
    width: 18px;
    height: 18px;
    accent-color: var(--accent-green);
    cursor: pointer;
}

.todo-text {
    flex: 1;
}

.todo-item.completed .todo-text {
    text-decoration: line-through;
    color: var(--text-muted);
}

.delete-btn {
    background: none;
    border: none;
    color: #ef4444;
    cursor: pointer;
    font-size: 1.2rem;
    opacity: 0;
    transition: opacity 0.2s;
}

.todo-item:hover .delete-btn {
    opacity: 1;
}

/* Currency List */
.currency-item {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border-color);
}
.rate { color: var(--accent-green); font-weight: 600; }

/* Footer */
.dashboard-footer {
    text-align: center;
    margin-top: 3rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    opacity: 0.6;
}

/* AdSense Premium Placeholders */
.adsense-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    text-align: center;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.adsense-placeholder::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 70%);
    transform: rotate(45deg);
    pointer-events: none;
}

.adsense-placeholder:hover {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.2);
}

.leaderboard {
    width: 100%;
    height: 120px;
    border-radius: 16px;
}

.grid-ad {
    height: 100%;
    min-height: 250px;
    margin-bottom: 0;
}

.ad-label {
    position: absolute;
    top: 10px;
    left: 15px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-muted);
    opacity: 0.6;
}

.ad-content {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 1px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

/* Responsive */
@media (max-width: 992px) {
    .dashboard-grid { grid-template-columns: repeat(2, 1fr); }
    .card.large { grid-column: span 2; }
}

@media (max-width: 600px) {
    .dashboard-header { flex-direction: column; text-align: center; }
    .main-clock-area { text-align: center; margin-top: 1.5rem; }
    .dashboard-grid { grid-template-columns: 1fr; }
    .card.large { grid-column: span 1; }
}