/* ===== ROOT VARIABLES ===== */
:root {
    /* Colors - Dark, sophisticated palette */
    --bg-primary: #0a0a0b;
    --bg-secondary: #111113;
    --bg-card: #16161a;
    --bg-card-hover: #1c1c21;

    --text-primary: #f4f4f5;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;

    --accent-primary: #8b5cf6;
    --accent-secondary: #a78bfa;
    --accent-glow: rgba(139, 92, 246, 0.3);

    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(255, 255, 255, 0.15);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --section-padding: clamp(4rem, 10vw, 8rem);
    --container-width: 1200px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== LAYOUT ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

/* ===== TYPOGRAPHY ===== */
h1,
h2,
h3 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.section-intro {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 3rem;
}

/* ===== NAVIGATION ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    transition: all var(--transition-base);
    text-decoration: none;
}

.logo-link:hover {
    transform: translateY(-1px);
}

.logo-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary) 0%, #7c3aed 100%);
    border-radius: 8px;
    box-shadow: 0 2px 12px var(--accent-glow);
    transition: all var(--transition-base);
}

.logo-link:hover .logo-icon {
    box-shadow: 0 4px 20px var(--accent-glow);
    transform: scale(1.05);
}

.logo-icon svg {
    width: 18px;
    height: 18px;
    color: white;
    stroke-width: 2.5;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Legacy image logo support */
.logo-img {
    height: 36px;
    width: auto;
    filter: brightness(1.1) contrast(1.05);
    transition: all var(--transition-base);
}

.logo-link:hover .logo-img {
    filter: brightness(1.2) contrast(1.1) drop-shadow(0 0 8px var(--accent-glow));
}

/* Text fallback logo */
.logo {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-cta {
    padding: 0.625rem 1.25rem;
    background: var(--accent-primary);
    color: white;
    font-weight: 500;
    font-size: 0.875rem;
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.nav-cta:hover {
    background: var(--accent-secondary);
    transform: translateY(-1px);
}

/* ===== CTA BUTTON ===== */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--accent-primary) 0%, #7c3aed 100%);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 4px 24px var(--accent-glow);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px var(--accent-glow);
}

.cta-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 6rem;
    overflow: hidden;
}

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

.hero-content h1 {
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 2.5rem;
    max-width: 540px;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    animation: float 6s ease-in-out infinite;
}

.visual-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary) 0%, #7c3aed 100%);
    border-radius: 12px;
}

.visual-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.visual-card span {
    font-weight: 500;
    color: var(--text-primary);
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.hero-gradient {
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: radial-gradient(ellipse at center right, var(--accent-glow) 0%, transparent 60%);
    pointer-events: none;
    opacity: 0.5;
}

/* ===== PROBLEM SECTION ===== */
.problem {
    background: var(--bg-secondary);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.problem-card {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: all var(--transition-base);
}

.problem-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    transform: translateY(-4px);
}

.problem-number {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.problem-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== SOLUTION SECTION ===== */
.solution-header {
    margin-bottom: 3rem;
}

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

.solution-item {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.solution-item:last-child {
    border-bottom: none;
}

.solution-item p {
    color: var(--text-secondary);
}

.solution-visual {
    display: flex;
    justify-content: center;
}

.flow-diagram {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.25rem 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    position: relative;
}

.flow-step:not(.final)::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 20px;
    background: linear-gradient(to bottom, var(--accent-primary), var(--accent-glow));
}

.flow-step:not(:first-child) {
    margin-top: 20px;
}

.flow-label {
    font-weight: 500;
    color: var(--text-primary);
}

.flow-step.final {
    background: linear-gradient(135deg, var(--accent-primary) 0%, #7c3aed 100%);
    border-color: transparent;
}

.flow-step.final .flow-label {
    color: white;
}

/* ===== SERVICES SECTION ===== */
.services {
    background: var(--bg-secondary);
}

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

.service-card {
    position: relative;
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    transition: all var(--transition-base);
}

.service-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
    transform: translateY(-4px);
}

.service-card.featured {
    border-color: var(--accent-primary);
    background: linear-gradient(180deg, rgba(139, 92, 246, 0.1) 0%, var(--bg-card) 100%);
}

.featured-tag {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.375rem 1rem;
    background: var(--accent-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(139, 92, 246, 0.15);
    border-radius: 14px;
    margin-bottom: 1.5rem;
}

.service-icon svg {
    width: 28px;
    height: 28px;
    color: var(--accent-primary);
}

.service-outcome {
    color: var(--accent-secondary);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.service-details {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.service-details li {
    position: relative;
    padding-left: 1.25rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.service-details li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.5em;
    width: 6px;
    height: 6px;
    background: var(--accent-primary);
    border-radius: 50%;
}

/* ===== WHY SECTION ===== */
.why-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.why-card {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: all var(--transition-base);
}

.why-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-color-hover);
}

.why-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== PROCESS SECTION ===== */
.process {
    background: var(--bg-secondary);
}

.process-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.process-step {
    position: relative;
    text-align: center;
}

.step-number {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--accent-primary) 0%, #7c3aed 100%);
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: 50%;
    position: relative;
}

.process-step:not(:last-child) .step-number::after {
    content: '';
    position: absolute;
    right: -100%;
    top: 50%;
    transform: translateY(-50%);
    width: calc(100% - 20px);
    height: 2px;
    background: linear-gradient(to right, var(--accent-primary), var(--accent-glow));
}

.step-content h3 {
    margin-bottom: 0.75rem;
}

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

/* ===== TRUST SECTION ===== */
.trust-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 3rem;
}

.trust-text p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    line-height: 1.8;
}

.trust-text p:last-child {
    margin-bottom: 0;
}

.trust-stats {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stat {
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--accent-secondary);
}

/* ===== FINAL CTA SECTION ===== */
.final-cta {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    text-align: center;
    padding: var(--section-padding) 0;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    margin-bottom: 1.5rem;
}

.cta-content p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.cta-note {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

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

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

.footer-logo-link {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    margin-bottom: 1rem;
    text-decoration: none;
    transition: all var(--transition-base);
}

.footer-logo-link:hover {
    transform: translateY(-1px);
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9375rem;
    max-width: 300px;
    line-height: 1.7;
}

.footer-email {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    color: var(--accent-secondary);
    font-size: 0.875rem;
    transition: color var(--transition-fast);
}

.footer-email:hover {
    color: var(--accent-primary);
}

.footer-nav h4,
.footer-social h4 {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-secondary);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
}

.social-links svg {
    width: 18px;
    height: 18px;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-visual {
        display: none;
    }

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

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

    .process-step:not(:last-child) .step-number::after {
        display: none;
    }

    .solution-content {
        grid-template-columns: 1fr;
    }

    .solution-visual {
        order: -1;
    }

    .trust-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .problem-grid {
        grid-template-columns: 1fr;
    }

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

    .process-timeline {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-brand p {
        max-width: 100%;
    }

    .footer-links {
        align-items: center;
    }

    .social-links {
        justify-content: center;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* ===== SCROLL REVEAL (set via JS) ===== */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}