/* ================================================================
   BASE.CSS - Design System Foundation
   Modern, professional aesthetic with Claymorphism style
   ================================================================ */

/* ----------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   ---------------------------------------------------------------- */
:root {
    /* === Veterinary Clinic Color Palette === */
    /* Primary Blue - Trust & Care */
    --color-primary-50: #eff6ff;
    --color-primary-100: #dbeafe;
    --color-primary-200: #bfdbfe;
    --color-primary-300: #93c5fd;
    --color-primary-400: #60a5fa;
    --color-primary-500: #3b82f6;
    --color-primary-600: #2563eb;
    --color-primary-700: #1d4ed8;
    --color-primary-800: #1e40af;
    --color-primary-900: #1e3a8a;

    /* Warm Orange - CTA & Energy */
    --color-cta-50: #fff7ed;
    --color-cta-100: #ffedd5;
    --color-cta-200: #fed7aa;
    --color-cta-300: #fdba74;
    --color-cta-400: #fb923c;
    --color-cta-500: #f97316;
    --color-cta-600: #ea580c;
    --color-cta-700: #c2410c;

    /* Mint Green - Health & Wellness */
    --color-mint-50: #ecfdf5;
    --color-mint-100: #d1fae5;
    --color-mint-200: #a7f3d0;
    --color-mint-300: #6ee7b7;
    --color-mint-400: #34d399;
    --color-mint-500: #10b981;
    --color-mint-600: #059669;

    /* Neutral Colors (Warm Gray) */
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;

    /* Status Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;

    /* === Typography === */
    --font-heading: 'Fredoka', 'Nunito', system-ui, sans-serif;
    --font-body: 'Nunito', system-ui, sans-serif;

    --font-size-xs: 0.75rem;
    /* 12px */
    --font-size-sm: 0.875rem;
    /* 14px */
    --font-size-base: 1rem;
    /* 16px */
    --font-size-lg: 1.125rem;
    /* 18px */
    --font-size-xl: 1.25rem;
    /* 20px */
    --font-size-2xl: 1.5rem;
    /* 24px */
    --font-size-3xl: 1.875rem;
    /* 30px */
    --font-size-4xl: 2.25rem;
    /* 36px */
    --font-size-5xl: 3rem;
    /* 48px */

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* === Border Radius (Rounded & Friendly) === */
    --radius-sm: 0.375rem;
    /* 6px */
    --radius-md: 0.5rem;
    /* 8px */
    --radius-lg: 0.75rem;
    /* 12px */
    --radius-xl: 1rem;
    /* 16px */
    --radius-2xl: 1.25rem;
    /* 20px */
    --radius-3xl: 1.5rem;
    /* 24px */
    --radius-full: 9999px;

    /* === Shadows (Claymorphism Style) === */
    --shadow-clay:
        6px 6px 12px rgba(0, 0, 0, 0.1),
        -3px -3px 8px rgba(255, 255, 255, 0.9);
    --shadow-clay-lg:
        8px 8px 16px rgba(0, 0, 0, 0.12),
        -4px -4px 12px rgba(255, 255, 255, 0.9);
    --shadow-clay-inset:
        inset 2px 2px 4px rgba(0, 0, 0, 0.06),
        inset -2px -2px 4px rgba(255, 255, 255, 0.8);

    /* Standard Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Glow Effects */
    --shadow-glow-primary: 0 0 20px rgba(59, 130, 246, 0.3);
    --shadow-glow-cta: 0 0 20px rgba(249, 115, 22, 0.3);
    --shadow-glow-mint: 0 0 20px rgba(16, 185, 129, 0.3);

    /* === Spacing === */
    --spacing-1: 0.25rem;
    /* 4px */
    --spacing-2: 0.5rem;
    /* 8px */
    --spacing-3: 0.75rem;
    /* 12px */
    --spacing-4: 1rem;
    /* 16px */
    --spacing-5: 1.25rem;
    /* 20px */
    --spacing-6: 1.5rem;
    /* 24px */
    --spacing-8: 2rem;
    /* 32px */
    --spacing-10: 2.5rem;
    /* 40px */
    --spacing-12: 3rem;
    /* 48px */
    --spacing-16: 4rem;
    /* 64px */

    /* === Transitions === */
    --transition-fast: 150ms;
    --transition-normal: 250ms;
    --transition-slow: 350ms;
    --easing-default: cubic-bezier(0.4, 0, 0.2, 1);
    --easing-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* === Z-Index === */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-tooltip: 1070;

    /* === Light Mode Semantic Colors === */
    --color-bg: #f8fafc;
    --color-bg-alt: #f1f5f9;
    --color-surface: #ffffff;
    --color-surface-alt: #f8fafc;
    --color-border: #e2e8f0;
    --color-border-thick: #cbd5e1;
    --color-text: #1e293b;
    --color-text-secondary: #475569;
    --color-text-muted: #64748b;
}

/* ----------------------------------------------------------------
   Dark Mode Semantic Colors
   ---------------------------------------------------------------- */
.dark {
    --color-bg: #0f172a;
    --color-bg-alt: #1e293b;
    --color-surface: #1e293b;
    --color-surface-alt: #334155;
    --color-border: #334155;
    --color-border-thick: #475569;
    --color-text: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;

    /* Dark mode claymorphism */
    --shadow-clay-sm:
        4px 4px 8px rgba(0, 0, 0, 0.3),
        -2px -2px 6px rgba(255, 255, 255, 0.05);
    --shadow-clay:
        6px 6px 12px rgba(0, 0, 0, 0.4),
        -3px -3px 8px rgba(255, 255, 255, 0.05);
    --shadow-clay-lg:
        8px 8px 16px rgba(0, 0, 0, 0.5),
        -4px -4px 12px rgba(255, 255, 255, 0.05);
    --shadow-clay-inset:
        inset 2px 2px 4px rgba(0, 0, 0, 0.3),
        inset -2px -2px 4px rgba(255, 255, 255, 0.05);

    /* Enhanced glow in dark mode */
    --shadow-glow-primary: 0 0 25px rgba(59, 130, 246, 0.4);
    --shadow-glow-cta: 0 0 25px rgba(249, 115, 22, 0.4);
    --shadow-glow-mint: 0 0 25px rgba(16, 185, 129, 0.4);
}

/* ----------------------------------------------------------------
   CSS Reset & Base Styles
   ---------------------------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: 140px;
    /* Account for sticky header */
}

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Headings - Fredoka for friendly look */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-text);
    margin: 0;
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
}

/* Paragraphs */
p {
    margin: 0;
    color: var(--color-text-secondary);
}

/* Links */
a {
    color: var(--color-primary-600);
    text-decoration: none;
    transition: color var(--transition-fast) var(--easing-default);
}

a:hover {
    color: var(--color-primary-500);
}

.dark a {
    color: var(--color-primary-400);
}

.dark a:hover {
    color: var(--color-primary-300);
}

/* Images */
img,
video {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ----------------------------------------------------------------
   Utility Classes
   ---------------------------------------------------------------- */

/* Gradient Text (Warm Pet Theme) */
.gradient-text {
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-cta-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Gradient Backgrounds */
.gradient-primary {
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
}

.gradient-cta {
    background: linear-gradient(135deg, var(--color-cta-400), var(--color-cta-600));
}

.gradient-warm {
    background: linear-gradient(135deg, var(--color-cta-400), var(--color-primary-500));
}

/* Background Decorative Blobs */
.bg-decor-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.bg-blur-circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.6;
}

.bg-blur-circle.blue {
    background-color: rgba(59, 130, 246, 0.25);
}

.bg-blur-circle.orange {
    background-color: rgba(249, 115, 22, 0.2);
}

.bg-blur-circle.mint {
    background-color: rgba(16, 185, 129, 0.2);
}

/* Focus States */
:focus-visible {
    outline: 3px solid var(--color-primary-400);
    outline-offset: 2px;
    border-radius: var(--radius-md);
}

/* Selection */
::selection {
    background-color: var(--color-primary-200);
    color: var(--color-primary-900);
}

.dark ::selection {
    background-color: var(--color-primary-800);
    color: var(--color-primary-100);
}

/* ----------------------------------------------------------------
   Scrollbar Styling (Modern Navy & Orange Theme)
   ---------------------------------------------------------------- */
::-webkit-scrollbar {
    width: 14px;
    height: 14px;
}

::-webkit-scrollbar-track {
    background: linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%);
    border-radius: var(--radius-full);
    border: 2px solid transparent;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #1e195a 0%, #2e3f81 100%);
    border-radius: var(--radius-full);
    border: 3px solid #f1f5f9;
    transition: background 0.3s ease, border-color 0.3s ease, transform 0.2s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #fb923c 0%, #f97316 50%, #ea580c 100%);
    border-color: #fff7ed;
    box-shadow: 0 0 8px rgba(249, 115, 22, 0.4);
}

::-webkit-scrollbar-thumb:active {
    background: linear-gradient(180deg, #f97316 0%, #ea580c 50%, #c2410c 100%);
    box-shadow: 0 0 12px rgba(249, 115, 22, 0.6);
}

::-webkit-scrollbar-corner {
    background: var(--color-bg-alt);
}

/* Firefox scrollbar */
* {
    scrollbar-width: auto;
    scrollbar-color: #1e195a #f1f5f9;
}

.dark ::-webkit-scrollbar-track {
    background: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
}

.dark ::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #3b82f6 0%, #2563eb 100%);
    border-color: #1e293b;
}

.dark ::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #fb923c 0%, #f97316 50%, #ea580c 100%);
    border-color: #1e293b;
    box-shadow: 0 0 8px rgba(249, 115, 22, 0.5);
}

.dark * {
    scrollbar-color: #3b82f6 #1e293b;
}

/* ----------------------------------------------------------------
   reCAPTCHA Badge Styling
   ---------------------------------------------------------------- */
.grecaptcha-badge {
    visibility: hidden;
    opacity: 0;
}

/* Show a custom reCAPTCHA notice instead */
.recaptcha-notice {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-align: center;
    margin-top: var(--spacing-4);
}

.recaptcha-notice a {
    color: var(--color-primary-500);
    text-decoration: underline;
}

/* ----------------------------------------------------------------
   Reduced Motion
   ---------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}