/* ==========================================================================
   Lavdin Design System
   A premium, modern design system built with Vanilla CSS.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700&display=swap');

:root {
    /* Color Palette - HSL (Vibrant, Modern, Premium) */
    --color-primary-h: 243;
    --color-primary-s: 75%;
    --color-primary-l: 59%;
    --color-primary: hsl(var(--color-primary-h), var(--color-primary-s), var(--color-primary-l));
    --color-primary-light: hsl(var(--color-primary-h), var(--color-primary-s), 70%);
    --color-primary-dark: hsl(var(--color-primary-h), var(--color-primary-s), 50%);

    --color-secondary-h: 315;
    --color-secondary-s: 70%;
    --color-secondary-l: 55%;
    --color-secondary: hsl(var(--color-secondary-h), var(--color-secondary-s), var(--color-secondary-l));

    --color-success: hsl(150, 60%, 45%);
    --color-warning: hsl(40, 90%, 55%);
    --color-danger: hsl(350, 70%, 55%);
    --color-info: hsl(200, 80%, 50%);

    /* Neutrals - Light Theme */
    --color-bg-base: hsl(220, 20%, 98%);
    --color-bg-surface: hsl(0, 0%, 100%);
    --color-bg-subtle: hsl(220, 15%, 95%);
    
    --color-text-main: hsl(220, 20%, 15%);
    --color-text-muted: hsl(220, 10%, 40%);
    --color-text-inverse: hsl(0, 0%, 100%);

    --color-border: hsl(220, 15%, 90%);
    --color-border-hover: hsl(220, 20%, 80%);

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Outfit', var(--font-sans);
    
    /* Shadows - Smooth, layered */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.05), 0 4px 6px -4px rgb(0 0 0 / 0.05);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.05), 0 8px 10px -6px rgb(0 0 0 / 0.05);
    --shadow-glow: 0 0 20px rgba(var(--color-primary-h), var(--color-primary-s), var(--color-primary-l), 0.2);

    /* Radii */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    --radius-pill: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
    
    /* Layout */
    --header-h: 70px;
    --dashboard-mobile-header-height: 64px;
}

@media (max-width: 991px) {
    :root {
        --header-h: var(--dashboard-mobile-header-height);
    }
}

/* Dark Theme Overrides */
html.dark-theme, body.dark-theme {
    --color-bg-base: hsl(220, 20%, 8%);
    --color-bg-surface: hsl(220, 20%, 12%);
    --color-bg-subtle: hsl(220, 20%, 15%);
    
    --color-text-main: hsl(220, 10%, 95%);
    --color-text-muted: hsl(220, 10%, 70%);
    
    --color-border: hsl(220, 20%, 20%);
    --color-border-hover: hsl(220, 20%, 30%);

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5), 0 8px 10px -6px rgb(0 0 0 / 0.5);
}

/* Base Styles */
body {
    font-family: var(--font-sans);
    background-color: var(--color-bg-base);
    color: var(--color-text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-base), color var(--transition-base);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text-main);
    letter-spacing: -0.02em;
}

/* Gradients */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

/* Glassmorphism */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.dark-theme .glass {
    background: rgba(30, 30, 35, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Modern Button */
.btn-modern {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--color-text-inverse);
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
    text-decoration: none;
}

.btn-modern:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.btn-modern:active {
    transform: translateY(0);
}

.btn-modern-outline {
    background: transparent;
    color: var(--color-text-main);
    border: 1px solid var(--color-border);
    box-shadow: none;
}

.btn-modern-outline:hover {
    background: var(--color-bg-subtle);
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

/* Card Component */
.card-modern {
    background-color: var(--color-bg-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 1.5rem;
    border: 1px solid var(--color-border);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-modern:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* Modern Form Elements */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.form-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-main);
}

.input-modern {
    padding: 0.75rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg-base);
    color: var(--color-text-main);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: all var(--transition-base);
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.02);
}

.input-modern:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-h), var(--color-primary-s), var(--color-primary-l), 0.2);
    background-color: var(--color-bg-surface);
}

.dark-theme .input-modern {
    background-color: var(--color-bg-subtle);
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.2);
}

.dark-theme .input-modern:focus {
    background-color: var(--color-bg-surface);
}

/* Layout Helpers */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 1.5rem;
}
@media (min-width: 768px) {
    .grid-2 { grid-template-columns: repeat(2, 1fr); }
}

.card-header {
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

/* Native App UX Adjustments */
body.is-native-app {
    user-select: none;
    -webkit-touch-callout: none;
    overscroll-behavior-y: none;
}
body.is-native-app input, body.is-native-app textarea {
    user-select: auto;
}