/* ===== ROOT VARIABLES ===== */
:root {
    --brand: #E75A5A;
    --brand-dark: #c94444;
    --brand-light: #ff7f7f;
    --brand-pale: #fff0f0;
    --dark: #1a1a2e;
    --text: #2c3e50;
    --text-muted: #6b7280;
    --white: #ffffff;
    --bg: #f9fafb;
    --border: #e5e7eb;
    --success: #16a34a;
    --success-dark: #15803d;
    --error: #dc2626;
    --error-light: #ff6b6b;
    --error-dark: #ee5a6f;
    --warning: #f59e0b;
    --warning-dark: #d97706;
    --info: #2563EB;
    --dark-alt: #16213e;
    --footer-bg: #111827;
    --shadow: 0 4px 20px rgba(231, 90, 90, 0.12);
    --shadow-lg: 0 10px 40px rgba(231, 90, 90, 0.2);
    --radius: 16px;
    --radius-sm: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Font Scale */
    --font-xs: 0.75rem;
    --font-sm: 0.8125rem;
    --font-base: 0.875rem;
    --font-md: 0.9375rem;
    --font-lg: 1rem;
    --font-xl: 1.125rem;
    --font-2xl: 1.5rem;
    --font-3xl: 2rem;
    --font-4xl: 2.5rem;
}

/* ===== RESET ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    letter-spacing: -0.01em;
}
a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
button {
    font-family: inherit;
    cursor: pointer;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===== SCROLL REVEAL ===== */
.reveal {
    opacity: 0; transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.04); }
}

/* ===== SKIP LINK (accessibility) ===== */
.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    background: var(--brand);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: 0 0 8px 8px;
    font-weight: 700;
    font-size: 0.9rem;
    z-index: 9999;
    transition: top 0.2s;
    text-decoration: none;
}
.skip-link:focus {
    top: 0;
}