/* ============================================================
   ResuMate — marketing home page
   Standalone stylesheet. Tokens replicated from styles.css so
   the resume viewer is unaffected by changes here.
   ============================================================ */

/* Design tokens */
:root {
    --color-bg: #fafafa;
    --color-surface: #ffffff;
    --color-text: #1f2933;
    --color-muted: #52606d;
    --color-accent: #2563eb;
    --color-accent-hover: #1d4ed8;
    --color-border: #e4e7eb;

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;

    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 14px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.10);

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 1rem;
    --space-4: 1.5rem;
    --space-5: 2rem;
    --space-6: 3rem;
    --space-7: 4.5rem;
    --space-8: 6rem;
}

/* Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

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

a {
    color: var(--color-accent);
    text-decoration: none;
}

a:hover,
a:focus {
    color: var(--color-accent-hover);
}

/* Accessibility: skip link */
.skip-link {
    position: absolute;
    top: -40px;
    left: var(--space-3);
    background: var(--color-surface);
    color: var(--color-accent);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    z-index: 1000;
}

.skip-link:focus {
    top: var(--space-3);
}

/* Layout */
.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font: inherit;
    font-weight: 600;
    line-height: 1;
    padding: 0.7rem 1.15rem;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color 120ms ease, color 120ms ease,
        border-color 120ms ease, transform 120ms ease, box-shadow 120ms ease;
    white-space: nowrap;
}

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

.btn-primary {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: #fff;
}

.btn-lg {
    padding: 0.95rem 1.6rem;
    font-size: 1.05rem;
    border-radius: var(--radius-md);
}

/* Nav */
.site-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(8px);
    -webkit-backdrop-filter: saturate(180%) blur(8px);
    border-bottom: 1px solid var(--color-border);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: var(--space-3);
}

.brand {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--color-text);
}

.brand:hover,
.brand:focus {
    color: var(--color-text);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.nav-link {
    color: var(--color-muted);
    font-weight: 500;
    padding: var(--space-2) var(--space-2);
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-text);
}

/* Hero */
.hero {
    padding: var(--space-8) 0 var(--space-7);
    background:
        radial-gradient(circle at 15% 0%, rgba(37, 99, 235, 0.08), transparent 50%),
        radial-gradient(circle at 85% 10%, rgba(37, 99, 235, 0.05), transparent 55%),
        var(--color-bg);
    text-align: center;
}

.hero-inner {
    max-width: 760px;
}

.hero-title {
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.025em;
    margin: 0 0 var(--space-4);
    color: var(--color-text);
}

.hero-subtitle {
    font-size: clamp(1.05rem, 1.6vw, 1.25rem);
    color: var(--color-muted);
    margin: 0 auto var(--space-5);
    max-width: 620px;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

/* Section common */
.section-title {
    font-size: clamp(1.6rem, 2.5vw, 2rem);
    font-weight: 700;
    letter-spacing: -0.015em;
    text-align: center;
    margin: 0 0 var(--space-6);
    color: var(--color-text);
}

/* Features */
.features {
    padding: var(--space-7) 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.features-grid {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-4);
}

.feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    transition: transform 160ms ease, box-shadow 160ms ease,
        border-color 160ms ease;
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: #d6dbe2;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(37, 99, 235, 0.10);
    color: var(--color-accent);
    margin-bottom: var(--space-3);
}

.feature-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin: 0 0 var(--space-2);
    color: var(--color-text);
}

.feature-desc {
    margin: 0;
    color: var(--color-muted);
    font-size: 0.97rem;
}

/* How it works */
.how {
    padding: var(--space-7) 0;
    background: var(--color-bg);
}

.steps {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-4);
    counter-reset: step;
}

.step {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.step-number {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-accent);
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-3);
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
}

.step-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 var(--space-2);
    color: var(--color-text);
}

.step-desc {
    margin: 0;
    color: var(--color-muted);
    font-size: 0.97rem;
}

/* Bottom CTA band */
.cta-band {
    padding: var(--space-7) 0;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
    color: #fff;
    text-align: center;
}

.cta-inner {
    max-width: 680px;
}

.cta-title {
    font-size: clamp(1.6rem, 3vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -0.015em;
    margin: 0 0 var(--space-2);
    color: #fff;
}

.cta-subtitle {
    margin: 0 0 var(--space-5);
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.05rem;
}

.cta-band .btn-primary {
    background: #fff;
    color: var(--color-accent);
    border-color: #fff;
}

.cta-band .btn-primary:hover,
.cta-band .btn-primary:focus {
    background: #f1f5fb;
    border-color: #f1f5fb;
    color: var(--color-accent-hover);
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
    padding: var(--space-4) 0;
}

.footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    color: var(--color-muted);
    font-size: 0.9rem;
}

.footer-copy {
    margin: 0;
}

.footer-brand {
    font-weight: 600;
    color: var(--color-text);
}

.footer-links {
    display: flex;
    gap: var(--space-3);
}

.footer-link {
    color: var(--color-muted);
}

.footer-link:hover,
.footer-link:focus {
    color: var(--color-accent);
}

/* Responsive */
@media (max-width: 640px) {
    .nav-inner {
        height: 56px;
    }

    .nav-link {
        display: none;
    }

    .hero {
        padding: var(--space-6) 0 var(--space-6);
    }

    .features,
    .how,
    .cta-band {
        padding: var(--space-6) 0;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition: none !important;
        animation: none !important;
    }
}