/**
 * GC Pixel Studio — Light Design System
 * Warm, professional, human — not tech-neon.
 */

:root {
    /* Surfaces */
    --color-bg: #FFFFFF;
    --color-bg-alt: #F7F9FC;
    --color-bg-warm: #FFF8F1;
    --color-bg-blue: #F0F6FF;
    --color-bg-dark: #FFFFFF; /* legacy alias → light */
    --color-bg-darker: #F7F9FC;
    --color-bg-card: #FFFFFF;
    --color-bg-card-hover: #F7F9FC;

    /* Brand */
    --color-primary: #2563EB;
    --color-primary-dark: #1E3A5F;
    --color-primary-soft: #DBEAFE;
    --color-secondary: #3B82F6;
    --color-accent: #F59E0B;
    --color-accent-soft: #FEF3C7;
    --color-accent-alt: #EA580C;
    --color-gold: #F59E0B;
    --color-success: #16A34A;
    --color-success-soft: #DCFCE7;
    --color-whatsapp: #25D366;
    --color-error: #DC2626;
    --color-error-soft: #FEE2E2;

    /* Text */
    --color-text: #1E293B;
    --color-text-secondary: #475569;
    --color-text-muted: #64748B;
    --color-text-inverse: #FFFFFF;

    /* Borders & shadows */
    --border-color: #E2E8F0;
    --border-color-hover: #CBD5E1;
    --shadow-sm: 0 1px 3px rgba(30, 58, 95, 0.06), 0 1px 2px rgba(30, 58, 95, 0.04);
    --shadow-md: 0 8px 24px rgba(30, 58, 95, 0.08);
    --shadow-lg: 0 20px 48px rgba(30, 58, 95, 0.12);
    --shadow-glow: 0 8px 24px rgba(37, 99, 235, 0.15);
    --shadow-glow-accent: 0 8px 24px rgba(245, 158, 11, 0.18);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #2563EB 0%, #3B82F6 100%);
    --gradient-accent: linear-gradient(135deg, #F59E0B 0%, #FBBF24 100%);
    --gradient-hero: linear-gradient(160deg, #F0F6FF 0%, #FFFFFF 45%, #FFF8F1 100%);
    --gradient-card: linear-gradient(180deg, #FFFFFF 0%, #F7F9FC 100%);
    --gradient-gold: var(--gradient-accent);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4.5rem;
    --spacing-3xl: 6.5rem;

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Typography */
    --font-primary: 'Plus Jakarta Sans', system-ui, sans-serif;
    --font-display: var(--font-primary);

    --text-xs: 0.8125rem;
    --text-sm: 0.9375rem;
    --text-base: 1.0625rem;
    --text-lg: 1.1875rem;
    --text-xl: 1.375rem;
    --text-2xl: 1.625rem;
    --text-3xl: 2rem;
    --text-4xl: 2.5rem;
    --text-5xl: 3.25rem;
    --text-6xl: 3.75rem;

    /* Motion */
    --motion-ease: cubic-bezier(.22, .68, 0, 1);
    --motion-hover: 180ms;
    --motion-enter: 400ms;
    --type-title: clamp(2rem, 1.25rem + 3vw, 3.5rem);
    --type-section: clamp(1.75rem, 1.3rem + 1.8vw, 2.75rem);
    --type-body: 1rem;
    --type-label: .875rem;
    --type-caption: .75rem;
    --section-space: clamp(2.75rem, 5vw, 4.5rem);
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.4s ease;
    --transition-bounce: 0.3s ease;

    /* Layers */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-tooltip: 600;
    --z-max: 9999;

    --container-max: 1160px;
    --container-padding: 1.25rem;
    --header-height: 76px;
}

@media (prefers-reduced-motion: reduce) {
    :root {
        --transition-fast: 0.01ms;
        --transition-base: 0.01ms;
        --transition-slow: 0.01ms;
    }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: 1.65;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

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

:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.75rem 1.5rem;
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-radius: var(--radius-md);
    z-index: var(--z-max);
}

.skip-link:focus {
    top: 1rem;
}

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

.section {
    padding: var(--spacing-2xl) 0;
    position: relative;
}

.section-alt { background: var(--color-bg-alt); }
.section-warm { background: var(--color-bg-warm); }
.section-blue { background: var(--color-bg-blue); }

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--spacing-xl);
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-primary-dark);
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.gradient-text,
.gradient-text-alt {
    color: var(--color-primary);
    background: none;
    -webkit-text-fill-color: unset;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
}