/* ═══════════════════════════════════════════════════════════
   SUSTITUCIÓN LABORAL — Premium Landing Page
   Design System: Enterprise SaaS / B2B Modern
   ═══════════════════════════════════════════════════════════ */

/* ─── RESET & BASE ─── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Brand Colors */
    --color-primary: #2563EB;
    --color-primary-light: #3B82F6;
    --color-primary-lighter: #60A5FA;
    --color-primary-lightest: #DBEAFE;
    --color-primary-dark: #1D4ED8;

    /* Neutrals */
    --color-bg: #FFFFFF;
    --color-bg-subtle: #F8FAFC;
    --color-bg-muted: #F1F5F9;
    --color-bg-dark: #0F172A;
    --color-bg-card: #FFFFFF;

    --color-text: #0F172A;
    --color-text-secondary: #475569;
    --color-text-tertiary: #94A3B8;
    --color-text-inverse: #FFFFFF;

    --color-border: #E2E8F0;
    --color-border-light: #F1F5F9;

    /* Accent */
    --color-success: #059669;
    --color-amber: #D97706;
    --color-red: #DC2626;
    --color-purple: #7C3AED;

    /* Typography */
    --font-display: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;

    /* Spacing */
    --section-pad: clamp(4rem, 8vw, 7rem);
    --container-max: 1200px;
    --container-pad: clamp(1.25rem, 4vw, 2rem);

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
    --shadow-card: 0 0 0 1px var(--color-border), 0 4px 12px rgba(0,0,0,0.04);
    --shadow-card-hover: 0 0 0 1px var(--color-primary-light), 0 8px 24px rgba(37,99,235,0.1);

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 150ms var(--ease-out);
    --transition-base: 250ms var(--ease-out);
    --transition-slow: 400ms var(--ease-out);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }

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

/* ─── TYPOGRAPHY ─── */
.section-header { margin-bottom: 3.5rem; }
.section-header--center { text-align: center; max-width: 700px; margin-left: auto; margin-right: auto; }

.section-label {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
    font-family: var(--font-body);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 800;
    line-height: 1.15;
    color: var(--color-text);
    letter-spacing: -0.025em;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-top: 1rem;
    line-height: 1.7;
}

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

/* ─── BUTTONS ─── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.9375rem;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    text-decoration: none;
}

.btn--sm { padding: 0.5rem 1.25rem; font-size: 0.875rem; }
.btn--lg { padding: 0.875rem 1.75rem; font-size: 1rem; }

.btn--primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    box-shadow: 0 1px 3px rgba(37,99,235,0.3), inset 0 1px 0 rgba(255,255,255,0.1);
}
.btn--primary:hover {
    background: var(--color-primary-dark);
    box-shadow: 0 4px 12px rgba(37,99,235,0.35), inset 0 1px 0 rgba(255,255,255,0.1);
    transform: translateY(-1px);
}

.btn--ghost {
    background: transparent;
    color: var(--color-text);
    border: 1.5px solid var(--color-border);
}
.btn--ghost:hover {
    border-color: var(--color-text-secondary);
    background: var(--color-bg-subtle);
}

.btn--outline {
    background: transparent;
    color: var(--color-text-inverse);
    border: 1.5px solid rgba(255,255,255,0.25);
}
.btn--outline:hover {
    border-color: rgba(255,255,255,0.5);
    background: rgba(255,255,255,0.05);
}

/* ─── NAVIGATION ─── */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.nav--scrolled {
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.nav__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-pad);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.0625rem;
    color: var(--color-text);
    letter-spacing: -0.01em;
}

.nav__links {
    display: flex;
    gap: 2rem;
}

.nav__links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}
.nav__links a:hover { color: var(--color-text); }

.nav__actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav__toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

/* ─── HERO ─── */
.hero {
    position: relative;
    padding: 10rem 0 6rem;
    overflow: hidden;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero__bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero__gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% 0%, rgba(219,234,254,0.5) 0%, transparent 70%),
        radial-gradient(ellipse 60% 50% at 80% 20%, rgba(191,219,254,0.25) 0%, transparent 60%);
}

.hero__grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(226,232,240,0.3) 1px, transparent 1px),
        linear-gradient(90deg, rgba(226,232,240,0.3) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black 20%, transparent 70%);
}

.hero__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    padding: 0.375rem 1rem 0.375rem 0.625rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.hero__badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-success);
    box-shadow: 0 0 0 3px rgba(5,150,105,0.15);
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { box-shadow: 0 0 0 3px rgba(5,150,105,0.15); }
    50% { box-shadow: 0 0 0 6px rgba(5,150,105,0.08); }
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(2.25rem, 4.5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--color-text);
    margin-bottom: 1.25rem;
}

.hero__title-accent {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-lighter) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    max-width: 520px;
}

.hero__ctas {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero__proof {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.hero__proof-item {
    display: flex;
    flex-direction: column;
}

.hero__proof-item strong {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.hero__proof-item span {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
    font-weight: 500;
}

.hero__proof-divider {
    width: 1px;
    height: 36px;
    background: var(--color-border);
}

/* Hero Visual */
.hero__visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero__card-stack {
    position: relative;
    width: 100%;
    max-width: 440px;
}

.hero__flow-card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl), 0 0 0 1px var(--color-border);
    overflow: hidden;
}

.hero__flow-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border-light);
    background: var(--color-bg-subtle);
}

.hero__flow-dots {
    display: flex;
    gap: 6px;
}

.hero__flow-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-border);
}
.hero__flow-dots span:first-child { background: #FF5F56; }
.hero__flow-dots span:nth-child(2) { background: #FFBD2E; }
.hero__flow-dots span:nth-child(3) { background: #27C93F; }

.hero__flow-title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.hero__flow-body {
    padding: 0.5rem;
}

.hero__flow-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.hero__flow-row--active {
    background: var(--color-bg-subtle);
}

.hero__flow-row--transition {
    background: linear-gradient(135deg, rgba(219,234,254,0.4) 0%, rgba(191,219,254,0.2) 100%);
    border: 1px solid rgba(59,130,246,0.1);
}

.hero__flow-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.hero__flow-avatar--green { background: linear-gradient(135deg, #059669, #10B981); }
.hero__flow-avatar--amber { background: linear-gradient(135deg, #D97706, #F59E0B); }
.hero__flow-avatar--blue { background: linear-gradient(135deg, #2563EB, #3B82F6); }
.hero__flow-avatar--purple { background: linear-gradient(135deg, #7C3AED, #8B5CF6); }

.hero__flow-info {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
}

.hero__flow-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
}

.hero__flow-role {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.hero__flow-status {
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 0.25rem 0.625rem;
    border-radius: 100px;
    flex-shrink: 0;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.hero__flow-status--active {
    background: #F0FDF4;
    color: #059669;
}

.hero__flow-status--covered {
    background: var(--color-primary-lightest);
    color: var(--color-primary);
}

/* Notification card */
.hero__notification {
    position: absolute;
    bottom: -20px;
    left: -30px;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg), 0 0 0 1px var(--color-border);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: float-notification 3s ease-in-out infinite;
}

@keyframes float-notification {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.hero__notification-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--color-primary-lightest);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.hero__notification-title {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text);
}

.hero__notification-text {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

/* ─── TRUST BAR ─── */
.trust-bar {
    padding: 3rem 0;
    border-bottom: 1px solid var(--color-border-light);
}

.trust-bar__label {
    text-align: center;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 1.5rem;
}

.trust-bar__logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.trust-bar__logo {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-tertiary);
    opacity: 0.5;
    letter-spacing: -0.01em;
}

/* ─── PROBLEM SECTION ─── */
.problem {
    padding: var(--section-pad) 0;
    background: var(--color-bg);
}

.problem__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.problem__card {
    padding: 2rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    transition: all var(--transition-base);
}

.problem__card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-2px);
}

.problem__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.problem__icon--red { background: #FEF2F2; color: var(--color-red); }
.problem__icon--amber { background: #FFFBEB; color: var(--color-amber); }
.problem__icon--blue { background: var(--color-primary-lightest); color: var(--color-primary); }
.problem__icon--purple { background: #F5F3FF; color: var(--color-purple); }

.problem__card h3 {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: 0.625rem;
    color: var(--color-text);
}

.problem__card p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.65;
}

/* ─── SOLUTION SECTION ─── */
.solution {
    padding: var(--section-pad) 0;
    background: var(--color-bg-subtle);
}

.solution__layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.solution__desc {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 1.25rem 0 2rem;
}

.solution__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.solution__list li {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.solution__list li svg { flex-shrink: 0; margin-top: 2px; }

.solution__list li strong {
    display: block;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.125rem;
}

.solution__list li span {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Solution Diagram */
.solution__diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}

.solution__node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem 2.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
}

.solution__node span {
    font-size: 0.875rem;
    font-weight: 600;
}

.solution__node--company {
    background: var(--color-bg);
    border: 1.5px solid var(--color-border);
    color: var(--color-text);
    box-shadow: var(--shadow-md);
}

.solution__node--us {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    box-shadow: 0 8px 24px rgba(37,99,235,0.25);
}

.solution__node--result {
    background: #F0FDF4;
    border: 1.5px solid #BBF7D0;
    color: var(--color-success);
}

.solution__connector {
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 48px;
    position: relative;
}

.solution__connector-line {
    width: 2px;
    height: 100%;
    background: var(--color-border);
}

.solution__connector-pulse {
    position: absolute;
    top: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary-light);
    animation: pulse-down 2s ease-in-out infinite;
}

@keyframes pulse-down {
    0% { top: 0; opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

/* ─── PROCESS SECTION ─── */
.process {
    padding: var(--section-pad) 0;
    background: var(--color-bg);
}

.process__steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    position: relative;
}

.process__steps::before {
    content: '';
    position: absolute;
    top: 32px;
    left: calc(12.5% + 1rem);
    right: calc(12.5% + 1rem);
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary-lightest), var(--color-primary-light), var(--color-primary-lightest));
}

.process__step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
}

.process__number {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--color-bg);
    border: 2px solid var(--color-primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.process__content h3 {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.process__content p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ─── USE CASES ─── */
.use-cases {
    padding: var(--section-pad) 0;
    background: var(--color-bg-subtle);
}

.use-cases__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.use-case__card {
    padding: 2rem;
    border-radius: var(--radius-lg);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.use-case__card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-2px);
}

.use-case__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--color-primary-lightest);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.use-case__card h3 {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.use-case__card p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ─── AREAS ─── */
.areas {
    padding: var(--section-pad) 0;
    background: var(--color-bg);
}

.areas__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
}

.area__card {
    padding: 1.75rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    transition: all var(--transition-base);
}

.area__card:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-2px);
}

.area__icon-wrap {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--color-bg-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: 1rem;
    transition: all var(--transition-base);
}

.area__card:hover .area__icon-wrap {
    background: var(--color-primary-lightest);
}

.area__card h3 {
    font-family: var(--font-display);
    font-size: 0.9375rem;
    font-weight: 700;
    margin-bottom: 0.375rem;
    color: var(--color-text);
}

.area__card p {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ─── DIFFERENTIATORS ─── */
.diff {
    padding: var(--section-pad) 0;
    background: var(--color-bg-dark);
    color: var(--color-text-inverse);
}

.diff__layout {
    display: flex;
    flex-direction: column;
}

.diff__header {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 3.5rem;
}

.diff__header .section-title {
    color: var(--color-text-inverse);
}

.diff__header .section-subtitle {
    color: rgba(255,255,255,0.6);
}

.diff__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.diff__card {
    padding: 2rem;
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    transition: all var(--transition-base);
}

.diff__card:hover {
    background: rgba(255,255,255,0.07);
    border-color: rgba(59,130,246,0.3);
    transform: translateY(-2px);
}

.diff__card-number {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 800;
    color: var(--color-primary-light);
    margin-bottom: 1rem;
    opacity: 0.7;
}

.diff__card h3 {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.diff__card p {
    font-size: 0.9375rem;
    color: rgba(255,255,255,0.55);
    line-height: 1.65;
}

/* ─── METRICS ─── */
.metrics {
    padding: var(--section-pad) 0;
    background: var(--color-bg-subtle);
}

.metrics__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.metrics__card {
    text-align: center;
    padding: 2.5rem 1.5rem;
    border-radius: var(--radius-lg);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
}

.metrics__value {
    font-family: var(--font-display);
    font-size: clamp(2rem, 3.5vw, 2.75rem);
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.metrics__value span {
    font-size: 0.5em;
    color: var(--color-text-tertiary);
    font-weight: 600;
}

.metrics__label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* ─── FAQ ─── */
.faq {
    padding: var(--section-pad) 0;
    background: var(--color-bg);
}

.faq__list {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.faq__item {
    border-bottom: 1px solid var(--color-border);
}

.faq__item:first-child {
    border-top: 1px solid var(--color-border);
}

.faq__question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
    cursor: pointer;
    list-style: none;
    user-select: none;
}

.faq__question::-webkit-details-marker { display: none; }

.faq__question span {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-text);
    padding-right: 1rem;
}

.faq__chevron {
    flex-shrink: 0;
    transition: transform var(--transition-base);
    color: var(--color-text-tertiary);
}

.faq__item[open] .faq__chevron {
    transform: rotate(180deg);
}

.faq__answer {
    padding-bottom: 1.25rem;
}

.faq__answer p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ─── CTA FINAL ─── */
.cta-final {
    padding: var(--section-pad) 0;
    background: var(--color-bg-subtle);
}

.cta-final__card {
    background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
    border-radius: var(--radius-xl);
    padding: clamp(3rem, 6vw, 5rem);
    position: relative;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 3rem;
}

.cta-final__content {
    position: relative;
    z-index: 1;
}

.cta-final__content h2 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 800;
    color: var(--color-text-inverse);
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.cta-final__content p {
    font-size: 1.0625rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.7;
    margin-bottom: 2rem;
    max-width: 500px;
}

.cta-final__actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.cta-final__decoration {
    position: relative;
    z-index: 0;
    opacity: 0.6;
    width: 300px;
    flex-shrink: 0;
}

.cta-final__decoration svg {
    width: 100%;
    height: auto;
}

/* ─── FOOTER ─── */
.footer {
    padding: 4rem 0 2rem;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
}

.footer__content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer__brand p {
    margin-top: 1rem;
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    max-width: 340px;
}

.footer__links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.footer__col h4 {
    font-family: var(--font-display);
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text);
    margin-bottom: 1rem;
}

.footer__col a {
    display: block;
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.625rem;
    transition: color var(--transition-fast);
}

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

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border-light);
}

.footer__bottom p {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
}

.footer__legal {
    display: flex;
    gap: 1.5rem;
}

.footer__legal a {
    font-size: 0.8125rem;
    color: var(--color-text-tertiary);
    transition: color var(--transition-fast);
}

.footer__legal a:hover { color: var(--color-text-secondary); }

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════ */

@media (max-width: 1024px) {
    .hero__content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero__visual {
        order: -1;
    }

    .hero__card-stack {
        max-width: 380px;
    }

    .problem__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .solution__layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .process__steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
    }

    .process__steps::before { display: none; }

    .areas__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .diff__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .metrics__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cta-final__card {
        grid-template-columns: 1fr;
    }

    .cta-final__decoration { display: none; }

    .footer__content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav__links { display: none; }
    .nav__toggle { display: flex; }

    .nav__links--open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: 1.5rem var(--container-pad);
        gap: 1rem;
        box-shadow: var(--shadow-lg);
    }

    .nav__actions .btn { display: none; }

    .hero {
        padding: 8rem 0 4rem;
        min-height: auto;
    }

    .hero__title {
        font-size: clamp(1.75rem, 6vw, 2.5rem);
    }

    .hero__proof {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .hero__proof-divider {
        width: 40px;
        height: 1px;
    }

    .hero__notification {
        left: 0;
        bottom: -16px;
    }

    .problem__grid,
    .use-cases__grid,
    .areas__grid,
    .diff__grid,
    .metrics__grid {
        grid-template-columns: 1fr;
    }

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

    .hero__ctas {
        flex-direction: column;
    }

    .hero__ctas .btn {
        justify-content: center;
    }

    .cta-final__actions {
        flex-direction: column;
    }

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

    .footer__bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* ─── ANIMATIONS ─── */
@media (prefers-reduced-motion: no-preference) {
    .fade-in {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
    }

    .fade-in.visible {
        opacity: 1;
        transform: translateY(0);
    }
}