/* ============================================
   MODERN CLEAN THEME
   Contemporary, minimalist, clean
   (Default theme - current existing styles)
   ============================================ */

:root {
    /* Typography - Modern Sans-Serif */
    --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

    /* Colors - Modern Palette */
    --color-primary: #6366f1; /* Indigo */
    --color-primary-dark: #4f46e5;
    --color-primary-light: #818cf8;

    --color-secondary: #ec4899; /* Pink */
    --color-secondary-dark: #db2777;
    --color-secondary-light: #f472b6;

    --color-accent: #10b981; /* Emerald */
    --color-accent-dark: #059669;
    --color-accent-light: #34d399;

    /* Neutral - Cool Tones */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Semantic Colors */
    --color-success: #10b981;
    --color-success-light: #d1fae5;
    --color-warning: #f59e0b;
    --color-warning-light: #fef3c7;
    --color-error: #ef4444;
    --color-error-light: #fee2e2;
    --color-info: #3b82f6;
    --color-info-light: #dbeafe;

    /* Font Sizes */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Font Weights */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Border Radius - Modern Rounded */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows - Modern, Crisp */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Transitions - Fast & Smooth */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

/* ============================================
   THEME-SPECIFIC COMPONENTS
   ============================================ */

/* Modern Buttons */
.btn-modern {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-family-base);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

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

.btn-modern-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-modern-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

/* Modern Cards */
.card-modern {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

/* Modern Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
}

/* Modern Navbar */
.navbar-modern {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-sm);
}

.navbar-modern .brand-name {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

/* Modern Footer */
.footer-modern {
    background: var(--color-gray-900);
    color: var(--color-white);
    border-top: 1px solid var(--color-gray-800);
}

/* Modern Product Card */
.product-card-modern {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.product-card-modern:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-xl);
}

.product-card-modern .product-image {
    position: relative;
    overflow: hidden;
}

.product-card-modern .product-image img {
    transition: transform var(--transition-base);
}

.product-card-modern:hover .product-image img {
    transform: scale(1.05);
}

.product-card-modern .product-info {
    padding: var(--spacing-md);
}

.product-card-modern .product-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
}

.product-card-modern .product-price {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

/* Modern Form Elements */
.form-control-modern {
    background: var(--color-white);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-lg);
    padding: 0.75rem 1rem;
    font-family: var(--font-family-body);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
}

.form-control-modern:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    outline: none;
}

/* Modern Badges */
.badge-modern {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-family: var(--font-family-base);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-white);
}


/* Grid Layouts */
.grid-modern { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 1.5rem; }
.category-modern { text-decoration: none; color: var(--color-gray-700); text-align: center; }
.category-modern img { width: 100%; height: 150px; object-fit: cover; margin-bottom: 0.5rem; }
.category-modern h3 { margin: 0.5rem 0; }
.product-grid-modern { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 1.5rem; }
.product-card-modern { background: var(--color-white); border: 1px solid var(--color-gray-200); padding: 1rem; text-align: center; }
.product-card-modern img { width: 100%; height: 200px; object-fit: cover; margin-bottom: 0.5rem; }
.product-card-modern h3 { margin: 0.5rem 0; }
.product-card-modern p { margin: 0.5rem 0; }
.product-card-modern button { margin-top: 0.5rem; cursor: pointer; }