/* Terra Health Design System - Based on Figma Design */

:root {
    /* ========================================
       Colors - From Figma
       ======================================== */
    
    /* Primary Colors */
    --terra-green-dark: #2D5A27;
    --terra-green-primary: #3D7A35;
    --terra-green-light: #4A9B3F;
    
    /* Neutral Colors */
    --terra-black: #1A1A1A;
    --terra-gray-900: #333333;
    --terra-gray-700: #555555;
    --terra-gray-600: #6B7280;
    --terra-gray-500: #888888;
    --terra-gray-400: #9CA3AF;
    --terra-gray-300: #D1D5DB;
    --terra-gray-200: #E5E7EB;
    --terra-gray-100: #F3F4F6;
    --terra-gray-50: #F9FAFB;
    --terra-white: #FFFFFF;
    
    /* Accent Colors */
    --terra-star: #FFC107;
    --terra-sale: #DC2626;
    --terra-success: #10B981;
    
    /* ========================================
       Typography - From Figma
       ======================================== */
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Font Sizes (matching Figma) */
    --text-xs: 13px;
    --text-sm: 14px;
    --text-base: 16px;
    --text-lg: 18px;
    --text-xl: 22px;
    --text-2xl: 24px;
    --text-3xl: 32px;
    --text-4xl: 48px;
    --text-5xl: 56px;
    --text-6xl: 72px;
    
    /* Font Weights */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    
    /* Line Heights */
    --leading-tight: 1.2;
    --leading-snug: 1.35;
    --leading-normal: 1.5;
    --leading-relaxed: 1.6;
    
    /* ========================================
       Spacing - From Figma (56px container padding)
       ======================================== */
    
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-14: 56px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;
    
    /* Container */
    --container-max: 1920px;
    --container-padding: 56px;
    --content-max: 1808px; /* 1920 - 56*2 */
    
    /* ========================================
       Component Sizes - From Figma
       ======================================== */
    
    /* Banner */
    --banner-height: 34px;
    
    /* Navbar */
    --navbar-height: 72px;
    
    /* Hero */
    --hero-height: 700px;
    
    /* Product Card */
    --product-card-width: 434px;
    --product-image-height: 530px;
    --product-info-height: 156px;
    
    /* Video Card (UGC) */
    --video-card-width: 434px;
    --video-height: 772px;
    
    /* Collection Card */
    --collection-card-height: 586px;
    
    /* Blog Card */
    --blog-image-height: 390px;
    
    /* Instagram */
    --instagram-size: 434px;
    
    /* Buttons */
    --btn-height: 50px;
    --btn-height-sm: 40px;
    --btn-radius: 8px;
    
    /* ========================================
       Shadows
       ======================================== */
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
    
    /* ========================================
       Transitions
       ======================================== */
    
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* ========================================
       Z-Index
       ======================================== */
    
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 1000;
    --z-tooltip: 1100;
}

/* ========================================
   Reset & Base
   ======================================== */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--terra-black);
    background-color: var(--terra-white);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

/* ========================================
   Layout
   ======================================== */

.terra-container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.terra-section {
    padding: var(--space-14) 0;
}

/* ========================================
   Grid System
   ======================================== */

.terra-grid {
    display: grid;
    gap: var(--space-6);
}

.terra-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.terra-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.terra-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.terra-grid-5 {
    grid-template-columns: repeat(5, 1fr);
}

/* ========================================
   Typography
   ======================================== */

.terra-heading-1 {
    font-size: var(--text-5xl);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    color: var(--terra-black);
}

.terra-heading-2 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    color: var(--terra-black);
}

.terra-heading-3 {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    line-height: var(--leading-snug);
    color: var(--terra-black);
}

.terra-heading-4 {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    line-height: var(--leading-snug);
    color: var(--terra-black);
}

.terra-body {
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--terra-gray-600);
}

.terra-body-sm {
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
    color: var(--terra-gray-600);
}

.terra-caption {
    font-size: var(--text-xs);
    line-height: var(--leading-normal);
    color: var(--terra-gray-500);
}

/* ========================================
   Buttons
   ======================================== */

.terra-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    height: var(--btn-height);
    padding: 0 var(--space-6);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    border-radius: var(--btn-radius);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.terra-btn-primary {
    background-color: var(--terra-green-dark);
    color: var(--terra-white);
}

.terra-btn-primary:hover {
    background-color: var(--terra-green-primary);
}

.terra-btn-secondary {
    background-color: var(--terra-gray-100);
    color: var(--terra-black);
}

.terra-btn-secondary:hover {
    background-color: var(--terra-gray-200);
}

.terra-btn-outline {
    background-color: transparent;
    color: var(--terra-black);
    border: 1px solid var(--terra-gray-300);
}

.terra-btn-outline:hover {
    background-color: var(--terra-gray-50);
    border-color: var(--terra-gray-400);
}

.terra-btn-ghost {
    background-color: transparent;
    color: var(--terra-black);
}

.terra-btn-ghost:hover {
    background-color: var(--terra-gray-100);
}

.terra-btn-icon {
    width: 50px;
    height: 50px;
    padding: 0;
    border-radius: 50%;
    border: 1px solid var(--terra-gray-200);
}

.terra-btn-icon:hover {
    background-color: var(--terra-gray-50);
    border-color: var(--terra-gray-300);
}

/* ========================================
   Stars Rating
   ======================================== */

.terra-stars {
    display: flex;
    align-items: center;
    gap: 0;
    margin-top: -5px;
}

.terra-star {
    width: 16px;
    height: 16px;
    color: var(--terra-star);
}

.terra-star-lg {
    width: 24px;
    height: 24px;
}

.terra-star svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
}

.terra-star--empty {
    color: var(--terra-gray-300);
}

/* ========================================
   Slider Controls
   ======================================== */

.terra-slider-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-8);
}

.terra-slider-dots {
    display: flex;
    gap: var(--space-2);
}

.terra-slider-dot {
    width: 8px;
    height: 2px;
    background-color: var(--terra-gray-300);
    border-radius: 1px;
    transition: all var(--transition-fast);
}

.terra-slider-dot--active {
    width: 32px;
    background-color: var(--terra-black);
}

.terra-slider-arrows {
    display: flex;
    gap: var(--space-2);
}

/* ========================================
   Placeholder (for images/videos)
   ======================================== */

.terra-placeholder {
    background: linear-gradient(135deg, var(--terra-gray-100) 0%, var(--terra-gray-200) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--terra-gray-400);
    font-size: var(--text-sm);
    position: relative;
    overflow: hidden;
}

.terra-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        45deg,
        transparent 40%,
        rgba(255,255,255,0.3) 50%,
        transparent 60%
    );
    background-size: 200% 200%;
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.terra-placeholder-green {
    background: linear-gradient(135deg, var(--terra-green-dark) 0%, var(--terra-green-primary) 100%);
    color: rgba(255, 255, 255, 0.6);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 1280px) {
    :root {
        --container-padding: 40px;
    }
    
    .terra-grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .terra-grid-5 {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 1024px) {
    :root {
        --container-padding: 32px;
        --text-5xl: 42px;
        --text-4xl: 36px;
    }
    
    .terra-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .terra-grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .terra-grid-5 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 24px;
        --text-5xl: 32px;
        --text-4xl: 28px;
        --text-3xl: 24px;
        --navbar-height: 60px;
        --hero-height: 500px;
    }
    
    .terra-grid-4,
    .terra-grid-3,
    .terra-grid-2 {
        grid-template-columns: 1fr;
    }
    
    .terra-grid-5 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .terra-section {
        padding: var(--space-10) 0;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 16px;
    }
    
    .terra-grid-5 {
        grid-template-columns: repeat(2, 1fr);
    }
}