/* 
 * ASVYBE MASTER PRODUCTION DESIGN SYSTEM v28
 * Colors: Ember Accent (#FF5A2B), Acid Accent (#D6FF4F), Dark (#0A0A0B), Paper Light (#F5F3EE)
 * Fonts: General Sans, Inter, JetBrains Mono
 */
@import url('https://fonts.googleapis.com/css2?family=General+Sans:wght@500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@500;700&family=Space+Grotesk:wght@500;600;700;800&display=swap');

:root {
    --bg-dark: #0A0A0B;
    --surface-dark: #151619;
    --bg-light: #F5F3EE;
    --surface-light: #FFFFFF;
    
    --text-heading-dark: #F7F6F2;
    --text-body-dark: #A6A7AC;
    --text-heading-light: #0A0A0B;
    --text-body-light: #54555A;
    --text-muted: #6C6D72;
    
    --border-dark: #232428;
    --border-light: #E4E1D9;
    
    --accent: #FF5A2B;
    --accent-hover: #E64C1F;
    --accent-secondary: #D6FF4F;
    
    --success: #3DDC84;
    --error: #FF5C5C;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-body-dark);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 17px;
    line-height: 1.65;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', 'General Sans', sans-serif;
    color: var(--text-heading-dark);
    margin-top: 0;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5.5vw, 5.5rem); font-weight: 600; line-height: 1.05; }
h2 { font-size: clamp(2.0rem, 4.0vw, 3.5rem); font-weight: 600; line-height: 1.1; }
h3 { font-size: clamp(1.4rem, 2.5vw, 1.875rem); font-weight: 500; line-height: 1.2; }
h4 { font-size: 1.25rem; font-weight: 500; line-height: 1.3; }

/* Eyebrows & Tags in JetBrains Mono */
.eyebrow-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    margin-bottom: 16px;
    display: inline-block;
}

.tag-acid {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: var(--accent-secondary);
    color: #0A0A0B;
    padding: 4px 12px;
    border-radius: 999px;
    display: inline-block;
}

/* Container Structure */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 48px;
    position: relative;
    z-index: 1;
}

@media (max-width: 768px) {
    .container { padding: 0 24px; }
}

/* Sections Rhythm */
.section-dark {
    background-color: var(--bg-dark);
    color: var(--text-body-dark);
    padding: 128px 0;
    border-bottom: 1px solid var(--border-dark);
}

.section-light {
    background-color: var(--bg-light);
    color: var(--text-body-light);
    padding: 128px 0;
    border-bottom: 1px solid var(--border-light);
}

.section-light h1, .section-light h2, .section-light h3, .section-light h4 {
    color: var(--text-heading-light);
}

@media (max-width: 768px) {
    .section-dark, .section-light { padding: 64px 0; }
}

.section-header {
    text-align: left;
    max-width: 750px;
    margin-bottom: 64px;
}

.section-header.centered {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

/* Button System (Section I Specs) */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    height: 52px;
    padding: 0 32px;
    background-color: var(--accent);
    color: #FFFFFF;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 16px;
    border-radius: 999px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.25s ease;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 10px 30px rgba(255, 90, 43, 0.3);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    height: 52px;
    padding: 0 32px;
    background-color: transparent;
    border: 1px solid var(--border-dark);
    color: var(--text-heading-dark);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 16px;
    border-radius: 999px;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.25s ease;
}

.section-light .btn-secondary {
    border-color: var(--border-light);
    color: var(--text-heading-light);
}

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

/* Card Component (Section I Specs) */
.card-dark {
    background: var(--surface-dark);
    border: 1px solid var(--border-dark);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s ease;
}

.card-dark:hover {
    border-color: rgba(255, 90, 43, 0.4);
    transform: translateY(-4px);
}

.card-light {
    background: var(--surface-light);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
    transition: all 0.3s ease;
}

.card-light:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
}

/* Trust Strip */
.trust-strip-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
    padding: 32px 0;
}

.client-logo-item {
    font-family: 'JetBrains Mono', monospace;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.client-logo-item:hover {
    opacity: 1;
    color: var(--text-heading-dark);
}

/* Process Stepper (Section K.6) */
.process-stepper {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}

@media (max-width: 900px) {
    .process-stepper { grid-template-columns: 1fr; }
}

.process-step-item {
    background: var(--surface-dark);
    border: 1px solid var(--border-dark);
    border-radius: 16px;
    padding: 32px 24px;
    position: relative;
}

.process-step-num {
    font-family: 'JetBrains Mono', monospace;
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 16px;
}

/* Pricing Cards & Estimator (Section K.12) */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 64px;
}

.estimator-box {
    background: var(--surface-dark);
    border: 1px solid var(--border-dark);
    border-radius: 20px;
    padding: 48px;
    max-width: 850px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .estimator-box { padding: 24px; }
}

/* Inputs & Form Controls (Section I Specs) */
.form-input-control {
    width: 100%;
    box-sizing: border-box;
    height: 56px;
    padding: 0 20px;
    background: var(--bg-dark);
    border: 1px solid var(--border-dark);
    border-radius: 10px;
    color: var(--text-heading-dark);
    font-family: inherit;
    font-size: 16px;
    transition: border-color 0.25s ease;
}

.form-input-control:focus {
    outline: none;
    border-color: var(--accent);
}

/* FAQ Accordion (Section K.13) */
.faq-accordion-item {
    background: var(--surface-dark);
    border: 1px solid var(--border-dark);
    border-radius: 12px;
    margin-bottom: 16px;
    overflow: hidden;
}

.faq-header {
    padding: 24px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-heading-dark);
    margin: 0;
}

.faq-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    padding: 0 28px;
    color: var(--text-body-dark);
}

.faq-accordion-item.active .faq-body {
    max-height: 400px;
    padding: 0 28px 24px;
}

/* Mobile Nav Overlay & Header */
.mobile-hamburger-btn {
    display: none;
    background: transparent;
    border: 1px solid var(--border-dark);
    color: var(--text-heading-dark);
    font-size: 1.4rem;
    padding: 8px 14px;
    border-radius: 8px;
    cursor: pointer;
}

.mobile-nav-drawer {
    display: none;
    max-height: 0;
    overflow: hidden;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border-dark);
    transition: max-height 0.4s ease;
}

.mobile-nav-drawer.open {
    display: block;
    max-height: 600px;
}

@media (max-width: 850px) {
    .desktop-nav { display: none !important; }
    .mobile-hamburger-btn { display: inline-flex !important; }
}