/* style.css */
:root {
    /* Color Palette - Dark Mode Default */
    --bg-base: #0a0d14;
    --bg-card: rgba(22, 28, 45, 0.6);
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-accent: #38bdf8;

    --accent-gradient: linear-gradient(135deg, #38bdf8, #818cf8);
    --border-glass: rgba(255, 255, 255, 0.08);
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --bg-input: rgba(15, 23, 42, 0.8);

    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 8px;

    /* Light Mode Variables - optional fallback */
    --bg-base-light: #f8fafc;
    --bg-card-light: rgba(255, 255, 255, 0.8);
    --text-primary-light: #0f172a;
    --text-secondary-light: #64748b;
    --border-glass-light: rgba(0, 0, 0, 0.05);

    /* Plan B Specific Theme */
    --plan-b-bg: rgba(168, 85, 247, 0.08);
    /* Dark mode purple hue */
    --plan-b-border: rgba(168, 85, 247, 0.15);
    --plan-b-accent: #a855f7;
    --plan-b-input-bg: rgba(0, 0, 0, 0.2);

    /* Plan A Highlight Theme */
    --plan-a-bg: rgba(56, 189, 248, 0.1);
    /* Slightly more opaque blue hue */
    --plan-a-border: rgba(56, 189, 248, 0.25);
}

.light-theme {
    --bg-base: var(--bg-base-light);
    --bg-card: var(--bg-card-light);
    --text-primary: var(--text-primary-light);
    --text-secondary: var(--text-secondary-light);
    --border-glass: var(--border-glass-light);
    --shadow-glass: 0 8px 32px 0 rgba(148, 163, 184, 0.15);
    --bg-input: #ffffff;
    --text-accent: #0ea5e9;
    --accent-gradient: linear-gradient(135deg, #0284c7, #3b82f6);

    /* Plan B Specific Theme */
    --plan-b-bg: rgba(168, 85, 247, 0.05);
    --plan-b-border: rgba(168, 85, 247, 0.25);
    --plan-b-input-bg: rgba(255, 255, 255, 0.6);

    /* Plan A Highlight Theme */
    --plan-a-bg: rgba(2, 132, 199, 0.08);
    /* Light mode blue hue */
    --plan-a-border: rgba(2, 132, 199, 0.25);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    transition: background-color 0.4s ease, color 0.4s ease;
    min-height: 100vh;
    overflow-x: hidden;
    /* Soft ambient background glow */
    background-image:
        radial-gradient(circle at 15% 50%, rgba(56, 189, 248, 0.08), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(129, 140, 248, 0.08), transparent 25%);
}

.app-container {
    max-width: 480px;
    /* Mobile width */
    margin: 0 auto;
    padding: 24px 20px 100px;
    /* Extra padding for FAB */
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: relative;
    z-index: 1;
    min-height: 100vh;
}

/* Glassmorphism Card */
.glassmorphism {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-glass);
    padding: 24px;
}

@keyframes pulse {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }

    100% {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Toast Message */
.toast-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    background: var(--accent-gradient);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transform: translateY(-20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}