/* ═══════════════════════════════════════════════════
   RecruitingLM — Shared Styles
   Canonical design tokens, components, and utilities
   used across all marketing pages.
   ═══════════════════════════════════════════════════ */

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

:root {
    /* Platform dark mode palette — slate series */
    --bg-primary: #0F172A;
    --bg-secondary: #1E293B;
    --bg-elevated: #334155;

    /* Platform border tokens — slate */
    --border-primary: #334155;
    --border-subtle: rgba(51, 65, 85, 0.5);
    --border-accent: rgba(34, 211, 238, 0.4);

    /* Platform dark mode text — gray series */
    --text-primary: #F9FAFB;
    --text-secondary: #E5E7EB;
    --text-muted: #9CA3AF;
    --text-faint: #8494A7;

    /* Platform brand — dark mode variants */
    --accent: #22D3EE;
    --accent-hover: #67E8F9;
    --accent-muted: rgba(34, 211, 238, 0.15);
    --primary-purple: #A78BFA;
    --primary-purple-dim: rgba(167, 139, 250, 0.15);
    --primary-teal: #22D3EE;

    /* Platform score colors — 4-tier system */
    --score-excellent: #34D399;
    --score-good: #60A5FA;
    --score-moderate: #FBBF24;
    --score-low: #F87171;

    --success: #34D399;
    --error: #F87171;

    /* Platform font stacks */
    --font-sans: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    --font-mono: 'Geist Mono', 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;

    /* Spacing — 4px base */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-12: 48px;
    --space-16: 64px;

    /* Platform radius — slightly rounded to match app */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 10px;
    --radius-xl: 12px;

    /* Platform shadows — dark theme */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.3);

    /* Platform transitions */
    --transition-fast: 0.12s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}


/* ─── Base ─── */

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.grid-pattern {
    position: fixed;
    inset: 0;
    z-index: -1;
    background-image:
        linear-gradient(rgba(51, 65, 85, 0.15) 1px, transparent 1px),
        linear-gradient(90deg, rgba(51, 65, 85, 0.15) 1px, transparent 1px);
    background-size: 48px 48px;
    opacity: 0.5;
}


/* ─── Skip Link (a11y) ─── */

.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-4);
    z-index: 10000;
    padding: var(--space-2) var(--space-4);
    background: var(--accent);
    color: var(--bg-primary);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    transition: top 0.15s ease;
}

.skip-link:focus {
    top: 0;
}


/* ─── Header ─── */

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-4) var(--space-6);
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-primary);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    text-decoration: none;
}

.logo-icon {
    width: 24px;
    height: 24px;
    background: var(--accent);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon i {
    font-size: 14px;
    color: var(--bg-primary);
}

.logo span {
    color: var(--primary-purple);
    font-weight: 400;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: color 0.15s ease;
    position: relative;
}

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

.nav-link-active {
    color: var(--accent);
}

.nav-link-active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
}

.nav-cta {
    padding: var(--space-2) var(--space-4);
    background: var(--accent);
    color: var(--bg-primary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: background 0.15s ease;
}

.nav-cta:hover {
    background: var(--accent-hover);
}

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-muted);
    padding: var(--space-2);
    cursor: pointer;
}

.nav-toggle i {
    font-size: 20px;
}

/* Mobile nav overlay */
.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(0, 0, 0, 0.5);
}

.nav-overlay.active {
    display: block;
}


/* ─── Main ─── */

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

section {
    padding: var(--space-12) 0;
}


/* ─── Focus (a11y) ─── */

a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.nav-cta:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}


/* ─── Typography ─── */

h1 {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

h1 .text-accent {
    color: var(--accent);
}

h2 {
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.section-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-3);
}

.section-label.purple {
    color: var(--primary-purple);
}

.section-desc {
    font-size: 15px;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto;
}


/* ─── Buttons ─── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all 0.15s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-primary);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--border-accent);
    color: var(--text-primary);
}

.btn-full {
    width: 100%;
    justify-content: center;
}


/* ─── Hero (shared base) ─── */

.hero {
    padding: 140px 0 var(--space-16);
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    background: var(--primary-purple-dim);
    border: 1px solid rgba(167, 139, 250, 0.3);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    color: var(--primary-purple);
    margin-bottom: var(--space-6);
}

.hero-subtitle {
    font-size: 15px;
    color: var(--text-muted);
    max-width: 540px;
    margin: 0 auto var(--space-8);
    line-height: 1.6;
}

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


/* ─── Split section layout ─── */

.split-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
}

.split-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.split-text .section-label {
    text-align: left;
}

.split-text h2 {
    text-align: left;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.feature-list li i {
    font-size: 18px;
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 1px;
}


/* ─── Contact Form ─── */

.contact-section {
    padding: var(--space-12) 0;
}

.form-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    max-width: 600px;
    margin: 0 auto;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    background: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-sans);
    font-size: 14px;
    color: var(--text-primary);
    transition: border-color 0.15s ease;
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-faint);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--border-accent);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* Form error states */
.form-group input[aria-invalid="true"],
.form-group textarea[aria-invalid="true"] {
    border-color: var(--error);
}

.form-group input[aria-invalid="true"]:focus,
.form-group textarea[aria-invalid="true"]:focus {
    border-color: var(--error);
}

.form-error {
    font-size: 12px;
    color: var(--error);
    margin-top: var(--space-1);
    display: none;
}

.form-error.visible {
    display: block;
}

.form-actions {
    margin-top: var(--space-6);
}

.form-note {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: var(--space-3);
    text-align: center;
}

/* Form-level error banner */
.form-error-banner {
    display: none;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: rgba(248, 113, 113, 0.1);
    border: 1px solid rgba(248, 113, 113, 0.3);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    font-size: 13px;
    color: var(--error);
}

.form-error-banner.visible {
    display: flex;
}

.form-error-banner i {
    font-size: 16px;
    flex-shrink: 0;
}

.form-success {
    text-align: center;
    padding: var(--space-6) 0;
}

.form-success .success-icon {
    color: var(--success);
    font-size: 40px;
    margin-bottom: var(--space-4);
}

.form-success h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.form-success p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}


/* ─── Verticals grid ─── */

.verticals-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.vertical-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    transition: border-color 0.15s ease;
}

.vertical-card:hover {
    border-color: var(--border-accent);
}

.vertical-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
}

.vertical-icon i {
    font-size: 28px;
}

.vertical-icon.purple {
    background: var(--primary-purple-dim);
    border: 1px solid rgba(167, 139, 250, 0.3);
}
.vertical-icon.purple i { color: var(--primary-purple); }

.vertical-icon.cyan {
    background: var(--accent-muted);
    border: 1px solid var(--border-accent);
}
.vertical-icon.cyan i { color: var(--accent); }

.vertical-icon.green {
    background: rgba(52, 211, 153, 0.12);
    border: 1px solid rgba(52, 211, 153, 0.3);
}
.vertical-icon.green i { color: var(--success); }

.vertical-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    letter-spacing: -0.01em;
}

.vertical-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}


/* ─── Footer ─── */

footer {
    padding: var(--space-8) var(--space-6);
    border-top: 1px solid var(--border-primary);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-nav {
    display: flex;
    gap: var(--space-6);
}

.footer-nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.15s ease;
}

.footer-nav a:hover {
    color: var(--text-primary);
}

.footer-contact a {
    color: var(--accent);
    text-decoration: none;
    font-size: 13px;
}

.footer-contact a:hover {
    text-decoration: underline;
}

.footer-bottom {
    max-width: 1200px;
    margin: var(--space-6) auto 0;
    padding-top: var(--space-6);
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-tagline {
    font-size: 12px;
    color: var(--text-muted);
}

.footer-copyright {
    font-size: 12px;
    color: var(--text-muted);
}


/* ─── Reduced motion (a11y) ─── */

@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;
    }
}


/* ─── Responsive — shared breakpoints ─── */

@media (max-width: 1024px) {
    .split-section {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .split-text {
        text-align: center;
    }

    .split-text .section-label,
    .split-text h2 {
        text-align: center;
    }

    .feature-list {
        max-width: 480px;
        margin: 0 auto;
    }

    .verticals-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    header {
        padding: var(--space-3) var(--space-4);
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 1001;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: var(--bg-primary);
        padding: 72px var(--space-6) var(--space-6);
        overflow-y: auto;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links .nav-link {
        padding: var(--space-4) 0;
        font-size: 16px;
        border-bottom: 1px solid var(--border-primary);
    }

    .nav-links .nav-link-active::after {
        display: none;
    }

    .nav-links .nav-cta {
        margin-top: var(--space-4);
        text-align: center;
        padding: var(--space-3) var(--space-4);
    }

    .nav-toggle {
        display: block;
        z-index: 1002;
    }

    main {
        padding: 0 var(--space-4);
    }

    .hero {
        padding: 120px 0 var(--space-12);
    }

    h1 {
        font-size: 28px;
    }

    h2 {
        font-size: 22px;
    }

    .hero-ctas {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-card {
        padding: var(--space-6);
    }

    .footer-content,
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }

    .footer-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
}