/* ==========================================================================
   Hamvas Core Design System
   Source of Truth for Design Tokens
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* Custom Fonts */
@font-face {
    font-family: 'Zuume Rough';
    src: url('/assets/fonts/ZuumeRough-Regular.woff2') format('woff2'),
         url('/assets/fonts/ZuumeRough-Regular.woff') format('woff'),
         url('/assets/fonts/ZuumeRough-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Zuume Rough';
    src: url('/assets/fonts/ZuumeRough-Bold.woff2') format('woff2'),
         url('/assets/fonts/ZuumeRough-Bold.woff') format('woff'),
         url('/assets/fonts/ZuumeRough-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Zuume Rough';
    src: url('/assets/fonts/ZuumeRough-Italic.woff2') format('woff2'),
         url('/assets/fonts/ZuumeRough-Italic.woff') format('woff');
    font-weight: 400;
    font-style: italic;
    font-display: swap;
}

:root {
    /* --- Colors (New Design System) --- */
    --color-black: #000500;
    --color-black-rgb: 0, 5, 0;
    --color-black-pure: #000000;
    --color-black-pure-rgb: 0, 0, 0;
    --color-black-dark: #050505;
    --color-black-light: #1A1A1A;
    
    --color-white: #EDF7F6;
    --color-white-rgb: 237, 247, 246;
    --color-white-pure: #FFFFFF;
    --color-white-pure-rgb: 255, 255, 255;
    --color-white-dim: rgba(237, 247, 246, 0.7);
    --color-white-muted: rgba(237, 247, 246, 0.4);
    
    --color-primary: #F7B538; /* Gold/Yellow */
    --color-primary-rgb: 247, 181, 56;
    --color-primary-hover: #E5A42E;
    --color-primary-container: rgba(var(--color-primary-rgb), 0.1);
    
    --color-kyokushin: #69140E; /* Kyokushin Red */
    --color-kyokushin-rgb: 105, 20, 14;
    --color-kyokushin-hover: #560F0B;
    
    --color-gradient-start: #A44200;
    --color-gradient-start-rgb: 164, 66, 0;
    --color-gradient-end: #69140E;
    
    /* --- Brand Gradients --- */
    --brand-gradient: linear-gradient(135deg, var(--color-gradient-start) 0%, var(--color-gradient-end) 100%);
    --gradient-primary: var(--brand-gradient);
    --gradient-cta: linear-gradient(135deg, var(--color-primary) 0%, var(--color-gradient-start) 100%);
    
    /* --- Functional Colors --- */
    --color-surface-base: var(--color-black-dark);
    --color-surface-low: var(--color-black-pure);
    --color-surface-high: var(--color-black-light);
    --color-on-surface: var(--color-white);
    --color-on-surface-variant: var(--color-white-dim);
    
    --color-text-secondary: var(--color-white-dim);
    --color-text-tertiary: var(--color-white-muted);
    
    --color-success: #4CAF50;
    --color-error: #F44336;
    --color-warning: #FF9800;
    --color-info: #2196F3;

    /* --- Glassmorphism --- */
    --color-glass-bg: rgba(0, 5, 0, 0.4);
    --glass-border-base: rgba(237, 247, 246, 0.12);
    --glass-border-light: rgba(237, 247, 246, 0.05);
    --glass-surface-base: rgba(0, 5, 0, 0.4);
    --glass-surface-heavy: rgba(0, 0, 0, 0.6);
    --glass-border-gradient: linear-gradient(135deg, rgba(237, 247, 246, 0.2), rgba(237, 247, 246, 0.05));
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
    
    /* --- Typography --- */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    --font-rough: 'Zuume Rough', sans-serif;
    
    /* Fluid Type Scale (clamp-based) */
    --type-h1: clamp(2.5rem, 8vw, 6.5rem);
    --type-h2: clamp(2rem, 5vw, 3.5rem);
    --type-h3: clamp(1.5rem, 3vw, 2.2rem);
    --type-h4: clamp(1.25rem, 2vw, 1.5rem);
    --type-h5: clamp(1.1rem, 1.5vw, 1.25rem);
    
    /* Display Sizes (for Hero & Key Sections) */
    --type-display-hero: clamp(2.5rem, 10vw, 7rem);
    --type-display-lg:   clamp(2.25rem, 8vw, 5.5rem);
    --type-display-md:   clamp(2rem, 6vw, 4.5rem);

    --type-body-lg: 1.125rem;
    --type-body-base: 1rem;
    --type-body-sm:   0.875rem;
    --type-body-xs:   0.75rem;
    
    /* --- Spacing & Layout --- */
    --section-padding: clamp(4rem, 10vh, 8rem);
    --container-max-width: 1440px;
    --gutter: 1.5rem;
    
    /* --- Breakpoints --- */
    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;

    /* --- Transitions --- */
    --trans-fluid: all 0.6s cubic-bezier(0.2, 0, 0, 1);
    --trans-premium: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    --trans-snap: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* --- Radii --- */
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-pill: 9999px;
    --radius-card: 16px;
    --radius-bento: 24px;
    
    /* --- Shadows & Scales --- */
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-premium: 0 20px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(247, 181, 56, 0.2);
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --hover-scale: scale(1.025);

    /* --- Gradients --- */
    --color-gradient-start: #A44200;
    --color-gradient-end: var(--color-kyokushin);
    --brand-gradient: linear-gradient(135deg, var(--color-gradient-start) 0%, var(--color-gradient-end) 100%);
    --gradient-primary: var(--brand-gradient);
    --gradient-cta: linear-gradient(135deg, var(--color-primary) 0%, var(--color-gradient-start) 100%);
    --gradient-glow: linear-gradient(135deg, rgba(0, 5, 0, 0.4) 0%, rgba(105, 19, 14, 0.4) 100%);
    --gradient-dark: linear-gradient(to bottom, transparent 0%, var(--color-black) 100%);

    /* --- Accessible Overrides --- */
    --color-gold-accent: #CA8A04; /* AA Compliant Gold */
    --color-glass-bg: rgba(15, 15, 15, 0.6); /* More transparent for better glass effect */
    --color-yellow: var(--color-primary);
}

/* Base Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-black);
    color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

::selection {
    background-color: var(--color-primary);
    color: var(--color-black);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--trans-snap);
}

a:hover, a:focus {
    color: var(--color-primary-hover);
    outline: none;
}

/* Background Texture & Overlays */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: 
        radial-gradient(circle at 2px 2px, rgba(255,255,255,0.03) 1px, transparent 0),
        linear-gradient(to bottom, var(--color-black), var(--color-surface-low));
    background-size: 4px 4px, 100% 100%;
    z-index: -2;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 250 250' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.06;
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: overlay;
}

/* Ambient Blobs */
.ambient-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    background: radial-gradient(circle, var(--color-primary-container) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
    animation: morph 20s infinite alternate ease-in-out;
}

.blob-1 { width: 60vw; height: 60vw; top: -10%; left: -10%; }
.blob-2 { width: 50vw; height: 50vw; bottom: -10%; right: -10%; animation-delay: -5s; }

@keyframes morph {
    0% { transform: translate(-10%, -10%) scale(1); }
    50% { transform: translate(10%, 15%) scale(1.1); }
    100% { transform: translate(-5%, 5%) scale(0.95); }
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: 1.1;
    text-transform: uppercase;
    letter-spacing: -0.02em;
}

h1 { font-size: var(--type-h1); }
h2 { font-size: var(--type-h2); }
h3 { font-size: var(--type-h3); }
h4 { font-size: var(--type-h4); }
h5 { font-size: var(--type-h5); }

.text-zuume {
    font-family: var(--font-rough) !important;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.text-zuume-subtitle {
    font-family: var(--font-rough) !important;
    font-weight: 400;
    font-size: clamp(1.25rem, 3vw, 1.75rem);  /* 20–28px — legible on all screens */
    color: var(--color-text-secondary);
    letter-spacing: 0.08em;
    line-height: 1.2;
    margin-top: 0.75rem;
}

.text-gold { color: var(--color-primary); }
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Typography Scale Utilities — 4-step hierarchy */
.display-hero { font-size: clamp(2.25rem, 6vw,  5rem);   font-weight: 900; line-height: 1; }   /* 36–80px */
.display-lg   { font-size: clamp(1.875rem, 4.5vw, 3.5rem); font-weight: 800; line-height: 1.05; } /* 30–56px */
.display-md   { font-size: clamp(1.5rem,  3vw,  2.5rem);  font-weight: 700; line-height: 1.1; }  /* 24–40px */
.display-sm   { font-size: clamp(1.25rem, 2vw,  1.875rem); font-weight: 600; line-height: 1.2; } /* 20–30px */

.body-lg { font-size: var(--type-body-lg); font-weight: 400; }
.body-base { font-size: var(--type-body-base); font-weight: 400; }
.body-sm { font-size: var(--type-body-sm); font-weight: 400; }

p.lead {
    font-size: var(--type-body-lg);
    font-weight: 300;
    color: var(--color-text-secondary);
}

small, .caption {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.eyebrow {
    font-size: var(--type-h5);
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-primary);
    display: block;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: var(--type-h2);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.card-title {
    font-size: var(--type-h3);
    font-weight: 600;
}

/* Global Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

.reveal-text {
    opacity: 0;
    transform: translateY(30px);
    transition: transform 1s cubic-bezier(0.16, 1, 0.3, 1), opacity 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-text.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-fade {
    opacity: 0;
    transition: opacity 1s ease-out;
}

.reveal-fade.active {
    opacity: 1;
}

.scroll-blur-scale {
    opacity: 0;
    filter: blur(16px);
    transform: scale(0.92) translateY(20px);
    transition: opacity 0.9s cubic-bezier(0.4, 0, 0.2, 1), 
                filter 0.9s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.9s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, filter, transform;
}

.scroll-blur-scale.active {
    opacity: 1;
    filter: blur(0px);
    transform: scale(1) translateY(0);
}