@layer base, layout, components, utilities;

@layer base {
    :root {
        /* Default Theme: Dark (Indigo/Purple) */
        --brand-primary: oklch(65% 0.25 285);
        --brand-secondary: oklch(75% 0.2 320);
        --accent: oklch(85% 0.15 150);
        
        /* Dynamic Theme Variables */
        --bg-main: radial-gradient(circle at top left, oklch(30% 0.1 280), oklch(15% 0.05 280));
        --surface-main: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
        --text-primary: oklch(98% 0.01 280);
        --text-secondary: oklch(85% 0.02 280);
        
        /* Effects */
        --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
        --shadow-glow: 0 0 20px 0 oklch(65% 0.25 285 / 0.4);
        --glass-border: 1px solid rgba(255, 255, 255, 0.1);
        --glass-blur: blur(12px);
        --number-bg: oklch(98% 0.01 280 / 0.1);
        --number-border: 1px solid rgba(255, 255, 255, 0.2);
    }

    [data-theme="light"] {
        --bg-main: radial-gradient(circle at top left, oklch(95% 0.02 240), oklch(90% 0.04 260));
        --surface-main: linear-gradient(135deg, rgba(0, 0, 0, 0.05), rgba(0, 0, 0, 0.02));
        --text-primary: oklch(20% 0.02 280);
        --text-secondary: oklch(40% 0.04 280);
        
        --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.1);
        --shadow-glow: 0 0 20px 0 oklch(65% 0.25 285 / 0.2);
        --glass-border: 1px solid rgba(0, 0, 0, 0.05);
        --number-bg: oklch(0% 0 0 / 0.05);
        --number-border: 1px solid rgba(0, 0, 0, 0.1);
    }

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

    body {
        font-family: 'Inter', sans-serif;
        color: var(--text-primary);
        background: var(--bg-main);
        background-attachment: fixed;
        min-height: 100vh;
        display: grid;
        place-items: center;
        overflow-x: hidden;
        transition: background 0.4s ease, color 0.4s ease;
    }

    h1, h2 {
        font-family: 'Space Grotesk', sans-serif;
    }
}

@layer layout {
    .app-wrapper {
        width: 100%;
        max-width: 600px;
        padding: 2rem;
        animation: fadeIn 0.8s ease-out;
    }

    .container {
        background: var(--surface-main);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        border: var(--glass-border);
        border-radius: 24px;
        padding: 3rem 2rem;
        text-align: center;
        box-shadow: var(--shadow-soft);
        position: relative;
        overflow: hidden;
        transition: all 0.4s ease;
    }
}

@layer components {
    .header {
        margin-bottom: 3rem;
    }

    .header-top {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 1rem;
    }

    .logo-icon {
        font-size: 3rem;
        filter: drop-shadow(0 0 10px var(--brand-primary));
    }

    /* Theme Toggle */
    .theme-toggle {
        background: var(--number-bg);
        border: var(--number-border);
        width: 44px;
        height: 44px;
        border-radius: 12px;
        cursor: pointer;
        display: grid;
        place-items: center;
        font-size: 1.2rem;
        transition: all 0.3s ease;
        color: var(--text-primary);
    }

    .theme-toggle:hover {
        transform: scale(1.05);
        background: var(--brand-primary);
        color: #fff;
    }

    [data-theme="light"] .sun-icon { display: none; }
    [data-theme="dark"] .moon-icon { display: none; }
    body:not([data-theme]) .moon-icon { display: none; } /* Default dark */

    h1 {
        font-size: 2.5rem;
        font-weight: 700;
        letter-spacing: -0.02em;
        margin-bottom: 0.5rem;
        background: linear-gradient(to bottom right, var(--text-primary), var(--brand-secondary));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        transition: all 0.4s ease;
    }

    .subtitle {
        color: var(--text-secondary);
        font-size: 1.1rem;
        transition: color 0.4s ease;
    }

    .generator-section {
        margin-bottom: 2rem;
    }

    .last-result {
        margin-bottom: 1.5rem;
        opacity: 0.8;
    }

    .last-result h3 {
        font-size: 0.9rem;
        text-transform: uppercase;
        letter-spacing: 0.1em;
        margin-bottom: 0.5rem;
        color: var(--text-secondary);
    }

    .mini-numbers {
        display: flex;
        justify-content: center;
        gap: 8px;
    }

    .mini-numbers span {
        width: 30px;
        height: 30px;
        border-radius: 50%;
        background: var(--number-bg);
        border: var(--number-border);
        display: grid;
        place-items: center;
        font-size: 0.75rem;
        font-weight: 600;
    }

    .mini-numbers span.bonus {
        border-color: var(--accent);
        box-shadow: 0 0 5px oklch(85% 0.15 150 / 0.3);
    }

    .lotto-numbers {
        display: flex;
        justify-content: center;
        gap: 8px;
        margin-bottom: 2rem;
        flex-wrap: wrap;
    }

    .number {
        width: 54px;
        height: 54px;
        border-radius: 50%;
        background: var(--number-bg);
        border: var(--number-border);
        display: grid;
        place-items: center;
        font-family: 'Space Grotesk', sans-serif;
        font-size: 1.3rem;
        font-weight: 700;
        color: var(--text-primary);
        transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.1);
    }

    .number.bonus {
        border-style: dashed;
        border-color: var(--accent);
    }

    .number.active.bonus {
        background: var(--brand-secondary);
        border-style: solid;
        box-shadow: 0 0 20px 0 oklch(75% 0.2 320 / 0.4), inset 0 4px 8px rgba(255, 255, 255, 0.3);
    }

    .number.active {
        background: var(--brand-primary);
        border-color: transparent;
        color: #fff;
        box-shadow: var(--shadow-glow), inset 0 4px 8px rgba(255, 255, 255, 0.3);
        transform: scale(1.1) translateY(-5px);
    }

    /* Stats Section */
    .stats-section {
        border-top: var(--glass-border);
        padding-top: 2rem;
        margin-top: 1rem;
    }

    .stats-section h3 {
        font-size: 1rem;
        margin-bottom: 1.5rem;
        color: var(--text-secondary);
    }

    .stats-grid {
        display: grid;
        grid-template-columns: repeat(9, 1fr);
        gap: 8px;
        max-width: 400px;
        margin: 0 auto;
    }

    .stat-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 2px;
    }

    .stat-ball {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: var(--number-bg);
        border: var(--number-border);
        display: grid;
        place-items: center;
        font-size: 0.7rem;
        font-weight: 600;
        transition: all 0.3s ease;
    }

    .stat-count {
        font-size: 0.6rem;
        opacity: 0.5;
    }

    .stat-ball.hot {
        background: var(--brand-primary);
        color: #fff;
        border-color: transparent;
        box-shadow: 0 0 10px oklch(65% 0.25 285 / 0.3);
    }

    .stat-ball.cold {
        opacity: 0.4;
    }

    .primary-btn {
        background: var(--brand-primary);
        color: #fff;
        border: none;
        padding: 1.2rem 2.5rem;
        font-size: 1.1rem;
        font-weight: 600;
        border-radius: 16px;
        cursor: pointer;
        display: inline-flex;
        align-items: center;
        gap: 12px;
        transition: all 0.3s ease;
        box-shadow: var(--shadow-glow);
        position: relative;
        overflow: hidden;
    }

    .primary-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 15px 30px -5px oklch(65% 0.25 285 / 0.5);
        background: oklch(68% 0.26 285);
    }

    .footer {
        margin-top: 2rem;
        font-size: 0.9rem;
        color: var(--text-secondary);
        opacity: 0.6;
        transition: color 0.4s ease;
    }
}

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