/* ============================================
   FLIP ADVANCE, INC. — v5 Opus
   Anti-design · Earth Tones 2026 · Japanese Zen
   ============================================ */

:root {
    --terracotta: #b5593c;
    --terracotta-light: #d4845f;
    --olive: #3d4a2e;
    --olive-deep: #2a3320;
    --sand: #d4c5a0;
    --sand-light: #e8dfc8;
    --sand-pale: #f0ebe0;
    --khaki: #c4b078;
    --charcoal: #1a1a17;
    --warm-black: #0f0e0b;
    --warm-gray: #6b6558;
    --cream: #f5f0e6;
    --ink: #2c2a24;
    --accent: #c25830;
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Space Grotesk', sans-serif;
    background: var(--cream);
    color: var(--ink);
    line-height: 1.65;
    overflow-x: hidden;
    position: relative;
}

/* Grain overlay */
.grain {
    position: fixed;
    top: 0; left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 256px 256px;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.section-label {
    font-family: 'DM Mono', monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--terracotta);
    margin-bottom: 1rem;
}

.section-heading {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    color: var(--charcoal);
    margin-bottom: 2rem;
}

/* Container */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 3rem);
}

/* ---- NAVIGATION ---- */
nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--warm-black);
    border-bottom: 1px solid rgba(212, 197, 160, 0.1);
}

.nav-inner {
    max-width: 1140px;
    margin: 0 auto;
    padding: 1rem clamp(1.5rem, 4vw, 3rem);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--sand);
    text-decoration: none;
    letter-spacing: 0.05em;
}

.logo-dot {
    color: var(--terracotta);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-family: 'DM Mono', monospace;
    font-size: 0.8rem;
    color: rgba(212, 197, 160, 0.6);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--sand);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    flex-direction: column;
    gap: 5px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--sand);
}

/* ---- HERO ---- */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--charcoal);
}

.hero-stripes {
    position: absolute;
    inset: 0;
    display: flex;
}

.stripe {
    flex: 1;
}

.stripe-1 { background: var(--terracotta); opacity: 0.12; }
.stripe-2 { background: var(--olive); opacity: 0.18; }
.stripe-3 { background: var(--sand); opacity: 0.08; }

.hero-content {
    position: relative;
    z-index: 2;
    padding: clamp(3rem, 8vw, 6rem) clamp(2rem, 6vw, 5rem);
    max-width: 800px;
}

.hero-tag {
    font-family: 'DM Mono', monospace;
    font-size: 0.8rem;
    color: var(--khaki);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 2rem;
    opacity: 0.8;
}

.hero-title {
    font-size: clamp(3.5rem, 10vw, 8rem);
    color: var(--sand-light);
    line-height: 0.92;
    margin-bottom: 2rem;
    letter-spacing: -0.04em;
}

.title-accent {
    color: var(--terracotta);
}

.hero-sub {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: rgba(212, 197, 160, 0.65);
    max-width: 420px;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-zen {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: clamp(200px, 30vw, 400px);
    color: var(--sand);
    opacity: 0.06;
}

.enso {
    width: 100%;
    height: auto;
}

/* ---- BUTTONS ---- */
.btn {
    display: inline-block;
    font-family: 'DM Mono', monospace;
    font-size: 0.85rem;
    text-decoration: none;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--terracotta);
    color: var(--cream);
    padding: 1rem 2.2rem;
    border: 2px solid var(--terracotta);
}

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

.btn-outline {
    background: transparent;
    color: var(--terracotta);
    padding: 0.9rem 2rem;
    border: 2px solid var(--terracotta);
}

.btn-outline:hover {
    background: var(--terracotta);
    color: var(--cream);
}

/* ---- PHILOSOPHY STRIP ---- */
.philosophy-strip {
    background: var(--olive-deep);
    padding: 1rem 0;
    overflow: hidden;
}

.strip-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    font-family: 'DM Mono', monospace;
    font-size: 0.75rem;
    color: rgba(212, 197, 160, 0.5);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    white-space: nowrap;
}

/* ---- SERVICES PREVIEW ---- */
.services-preview {
    padding: clamp(4rem, 8vw, 7rem) 0;
    background: var(--cream);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1px;
    background: var(--sand);
    border: 1px solid var(--sand);
    margin-bottom: 3rem;
}

.service-block {
    background: var(--cream);
    padding: 2.5rem 2rem;
    transition: background 0.3s;
}

.service-block:hover {
    background: var(--sand-pale);
}

.service-num {
    font-family: 'DM Mono', monospace;
    font-size: 0.7rem;
    color: var(--terracotta);
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 1rem;
}

.service-block h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--charcoal);
}

.service-block p {
    font-size: 0.95rem;
    color: var(--warm-gray);
    line-height: 1.65;
}

/* ---- WHY US ---- */
.why-us {
    padding: clamp(4rem, 8vw, 7rem) 0;
    background: var(--warm-black);
    color: var(--sand-light);
}

.why-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 5rem);
    align-items: start;
}

.why-text {
    font-size: 1.05rem;
    line-height: 1.75;
    color: rgba(212, 197, 160, 0.7);
    max-width: 480px;
}

.why-us .section-heading {
    color: var(--sand-light);
}

.why-right {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: rgba(212, 197, 160, 0.15);
    border: 1px solid rgba(212, 197, 160, 0.15);
}

.stat-block {
    background: var(--warm-black);
    padding: 2rem 1.5rem;
    text-align: center;
}

.stat-num {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--terracotta-light);
    margin-bottom: 0.3rem;
}

.stat-label {
    font-family: 'DM Mono', monospace;
    font-size: 0.7rem;
    color: rgba(212, 197, 160, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ---- CTA BAND ---- */
.cta-band {
    padding: clamp(3rem, 6vw, 5rem) 0;
    background: var(--terracotta);
    text-align: center;
}

.cta-band h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    color: var(--cream);
    margin-bottom: 0.5rem;
}

.cta-band p {
    color: rgba(245, 240, 230, 0.75);
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

.cta-band .btn-primary {
    background: var(--warm-black);
    border-color: var(--warm-black);
    color: var(--sand);
}

.cta-band .btn-primary:hover {
    background: var(--charcoal);
    border-color: var(--charcoal);
}

/* ---- FOOTER ---- */
footer {
    background: var(--warm-black);
    color: var(--sand);
    padding: clamp(3rem, 6vw, 5rem) 0 2rem;
    border-top: 1px solid rgba(212, 197, 160, 0.08);
}

.footer-inner {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 3rem);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    font-family: 'DM Mono', monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--terracotta-light);
    margin-bottom: 1rem;
}

.footer-col p,
.footer-col a {
    font-size: 0.9rem;
    color: rgba(212, 197, 160, 0.6);
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.footer-col a:hover {
    color: var(--sand);
}

.footer-bottom {
    max-width: 1140px;
    margin: 0 auto;
    padding: 2rem clamp(1.5rem, 4vw, 3rem) 0;
    border-top: 1px solid rgba(212, 197, 160, 0.08);
    text-align: center;
}

.footer-bottom p {
    font-family: 'DM Mono', monospace;
    font-size: 0.7rem;
    color: rgba(212, 197, 160, 0.35);
    letter-spacing: 0.1em;
}

/* ---- PAGE SPECIFIC ---- */

/* About page */
.page-hero {
    background: var(--charcoal);
    padding: clamp(4rem, 8vw, 6rem) 0;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(181, 89, 60, 0.08), rgba(61, 74, 46, 0.12));
}

.page-hero .container {
    position: relative;
    z-index: 1;
}

.page-hero .section-label {
    color: var(--khaki);
}

.page-hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    color: var(--sand-light);
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.page-hero p {
    font-size: 1.1rem;
    color: rgba(212, 197, 160, 0.65);
    max-width: 560px;
    line-height: 1.7;
}

/* Content sections */
.content-section {
    padding: clamp(4rem, 7vw, 6rem) 0;
}

.content-section.alt {
    background: var(--sand-pale);
}

.content-section.dark {
    background: var(--warm-black);
    color: var(--sand-light);
}

.content-section.dark .section-heading {
    color: var(--sand-light);
}

.content-section.dark p,
.content-section.dark li {
    color: rgba(212, 197, 160, 0.7);
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
}

.content-grid p {
    color: var(--warm-gray);
    line-height: 1.75;
    margin-bottom: 1rem;
}

/* Values grid */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1px;
    background: rgba(212, 197, 160, 0.2);
    border: 1px solid rgba(212, 197, 160, 0.2);
}

.value-card {
    background: var(--warm-black);
    padding: 2.5rem 2rem;
}

.value-card h3 {
    font-size: 1.15rem;
    color: var(--sand-light);
    margin-bottom: 0.75rem;
}

.value-card p {
    font-size: 0.9rem;
    color: rgba(212, 197, 160, 0.55);
    line-height: 1.6;
}

/* Services detail */
.service-detail {
    border-bottom: 1px solid var(--sand);
    padding: 3rem 0;
}

.service-detail:last-child {
    border-bottom: none;
}

.service-detail h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-detail p {
    color: var(--warm-gray);
    line-height: 1.75;
    max-width: 640px;
}

/* Process steps */
.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--terracotta);
    border: 1px solid var(--terracotta);
}

.process-step {
    background: var(--cream);
    padding: 2.5rem 2rem;
    text-align: center;
}

.process-step .step-num {
    font-family: 'DM Mono', monospace;
    font-size: 2rem;
    font-weight: 700;
    color: var(--terracotta);
    margin-bottom: 0.75rem;
    display: block;
}

.process-step h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.process-step p {
    font-size: 0.9rem;
    color: var(--warm-gray);
}

/* Contact form */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 4rem);
}

.contact-info h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--warm-gray);
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

.contact-info a {
    color: var(--terracotta);
    text-decoration: none;
}

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

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-family: 'DM Mono', monospace;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--charcoal);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.9rem 1rem;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.95rem;
    background: var(--sand-pale);
    border: 1px solid var(--sand);
    color: var(--charcoal);
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--terracotta);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-group .optional {
    color: var(--warm-gray);
    font-size: 0.7rem;
    font-style: italic;
}

/* Checkbox */
.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.checkbox-group input[type="checkbox"] {
    margin-top: 0.25rem;
    width: auto;
    accent-color: var(--terracotta);
}

.checkbox-group label {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 0.85rem;
    text-transform: none;
    letter-spacing: 0;
    color: var(--warm-gray);
    line-height: 1.5;
}

.consent-note {
    font-size: 0.8rem;
    color: var(--warm-gray);
    line-height: 1.6;
    margin-top: 1rem;
    padding: 1rem;
    background: var(--sand-pale);
    border-left: 3px solid var(--terracotta);
}

/* Legal pages */
.legal-content {
    max-width: 780px;
    margin: 0 auto;
    padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
}

.legal-content h2 {
    font-size: 1.6rem;
    margin: 2.5rem 0 1rem;
    color: var(--charcoal);
}

.legal-content h3 {
    font-size: 1.2rem;
    margin: 2rem 0 0.75rem;
    color: var(--charcoal);
}

.legal-content p {
    margin-bottom: 1rem;
    color: var(--warm-gray);
    line-height: 1.75;
}

.legal-content ul {
    margin: 0.5rem 0 1.5rem 1.5rem;
    color: var(--warm-gray);
}

.legal-content li {
    margin-bottom: 0.5rem;
    line-height: 1.65;
}

.legal-content .highlight-box {
    background: var(--sand-pale);
    border-left: 3px solid var(--terracotta);
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.legal-content .highlight-box p {
    color: var(--charcoal);
    font-weight: 500;
    margin-bottom: 0;
}

.legal-content strong {
    color: var(--charcoal);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--warm-black);
        flex-direction: column;
        padding: 1.5rem clamp(1.5rem, 4vw, 3rem);
        gap: 1rem;
        border-top: 1px solid rgba(212, 197, 160, 0.08);
    }

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

    .hero {
        min-height: 80vh;
    }

    .hero-zen {
        display: none;
    }

    .strip-inner {
        font-size: 0.65rem;
        gap: 1rem;
    }

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

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