/* ============================================
   BARNVEIL - Premium Privacy Intelligence
   Old Money Aesthetic Design System
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --color-bg: #0D0D0D;
    --color-bg-alt: #1a1a1a;
    --color-primary: #153E33;
    --color-primary-light: #1d5244;
    --color-accent: #C2A57B;
    --color-accent-hover: #d4b88f;
    --color-light: #FBFBF8;
    --color-light-alt: #f5f5f0;
    --color-text: #1a1a1a;
    --color-text-light: #4a4a4a;
    --color-text-muted: #6b6b6b;
    --color-text-on-dark: #FBFBF8;
    --color-border: #e5e5e0;
    --color-border-dark: #333;

    /* Typography */
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    --spacing-3xl: 8rem;

    /* Layout */
    --max-width: 1200px;
    --header-height: 80px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.6s ease;
}

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

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

body {
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
    margin-bottom: 1rem;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* Container */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: 2px;
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background-color: var(--color-text-on-dark);
    color: var(--color-bg);
}

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

.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-text-on-dark);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-dark);
    height: var(--header-height);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--color-text-on-dark);
    text-transform: uppercase;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-text-on-dark);
    opacity: 0.8;
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: all var(--transition-base);
    transform: translateX(-50%);
}

.nav-link:hover,
.nav-link.active {
    opacity: 1;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.625rem 1.25rem;
    background-color: var(--color-accent);
    color: var(--color-bg);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 2px;
    transition: all var(--transition-base);
}

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

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

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-on-dark);
    transition: all var(--transition-base);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0D0D0D 0%, #1a2b3c 50%, #153E33 100%);
    padding: var(--spacing-3xl) var(--spacing-md);
    padding-top: calc(var(--header-height) + var(--spacing-3xl));
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><linearGradient id="g" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" style="stop-color:rgba(255,255,255,0.02)"/><stop offset="100%" style="stop-color:rgba(255,255,255,0)"/></linearGradient></defs><rect fill="url(%23g)" width="100" height="100"/></svg>');
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0,0,0,0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
}

.hero-title {
    color: var(--color-text-on-dark);
    margin-bottom: var(--spacing-md);
    font-weight: 400;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.8);
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: var(--spacing-xl);
    font-weight: 300;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

/* ============================================
   VALUE PROPOSITION
   ============================================ */
.value-prop {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-light);
}

.value-prop-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.value-prop h2 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.value-prop p {
    color: var(--color-text-light);
    font-size: 1.125rem;
    line-height: 1.8;
}

/* ============================================
   SERVICES OVERVIEW
   ============================================ */
.services-overview {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-light-alt);
}

.section-title {
    text-align: center;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xl);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.service-card {
    background-color: var(--color-light);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.service-card:hover {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.service-icon {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.service-card h3 {
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.service-link {
    color: var(--color-accent);
    font-weight: 500;
    font-size: 0.9375rem;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
}

.service-link:hover {
    color: var(--color-primary);
    gap: var(--spacing-sm);
}

.services-cta {
    text-align: center;
}

/* ============================================
   SUCCESS HIGHLIGHT
   ============================================ */
.success-highlight {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-primary);
    color: var(--color-text-on-dark);
}

.success-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.success-stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(4rem, 8vw, 6rem);
    font-weight: 400;
    color: var(--color-accent);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    opacity: 0.8;
    margin-top: var(--spacing-sm);
}

.success-quote {
    border-left: 2px solid var(--color-accent);
    padding-left: var(--spacing-lg);
}

.success-quote p {
    font-family: var(--font-serif);
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    font-style: italic;
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.success-quote cite {
    font-style: normal;
    font-size: 0.875rem;
    opacity: 0.7;
}

.success-cta {
    text-align: center;
}

.success-highlight .btn-outline {
    color: var(--color-text-on-dark);
    border-color: var(--color-text-on-dark);
}

.success-highlight .btn-outline:hover {
    background-color: var(--color-text-on-dark);
    color: var(--color-primary);
}

/* ============================================
   TRUST SIGNALS
   ============================================ */
.trust-signals {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-light);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.trust-text {
    text-align: center;
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-style: italic;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.trust-badges {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-xl);
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.trust-badge svg {
    color: var(--color-primary);
}

/* ============================================
   CTA BANNER
   ============================================ */
.cta-banner {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-bg);
    color: var(--color-text-on-dark);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    margin-bottom: var(--spacing-sm);
}

.cta-content p {
    opacity: 0.8;
    margin-bottom: var(--spacing-lg);
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    background-color: var(--color-bg);
    color: var(--color-text-on-dark);
    border-top: 1px solid var(--color-border-dark);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--color-text-on-dark);
    text-transform: uppercase;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    opacity: 0.6;
    font-size: 0.875rem;
}

.footer-nav h4,
.footer-contact h4 {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
    opacity: 0.6;
}

.footer-nav ul {
    list-style: none;
}

.footer-nav li {
    margin-bottom: var(--spacing-xs);
}

.footer-nav a,
.footer-contact a {
    font-size: 0.875rem;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.footer-nav a:hover,
.footer-contact a:hover {
    opacity: 1;
    color: var(--color-accent);
}

.footer-contact p {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

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

.footer-bottom p {
    font-size: 0.8125rem;
    opacity: 0.6;
    margin-bottom: var(--spacing-xs);
}

.footer-legal {
    font-style: italic;
}

/* ============================================
   FLOATING WHATSAPP BUTTON
   ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: all var(--transition-base);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

/* ============================================
   REVEAL ANIMATIONS
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ============================================
   PAGE-SPECIFIC STYLES
   ============================================ */

/* Page Header (for subpages) */
.page-header {
    padding: calc(var(--header-height) + var(--spacing-3xl)) 0 var(--spacing-2xl);
    background: linear-gradient(135deg, #0D0D0D 0%, #1a2b3c 100%);
    color: var(--color-text-on-dark);
    text-align: center;
}

.page-header h1 {
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto;
}

/* Services Page */
.services-intro {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-light);
    text-align: center;
}

.services-intro p {
    max-width: 700px;
    margin: 0 auto;
    color: var(--color-text-light);
    font-size: 1.125rem;
}

.service-detail {
    padding: var(--spacing-2xl) 0;
    border-bottom: 1px solid var(--color-border);
}

.service-detail:nth-child(even) {
    background-color: var(--color-light-alt);
}

.service-detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.service-detail:nth-child(even) .service-detail-content {
    direction: rtl;
}

.service-detail:nth-child(even) .service-detail-content > * {
    direction: ltr;
}

.service-detail h2 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.service-detail p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.service-features {
    list-style: none;
    margin: var(--spacing-md) 0;
}

.service-features li {
    padding-left: var(--spacing-md);
    position: relative;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-light);
}

.service-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 6px;
    height: 6px;
    background-color: var(--color-accent);
    border-radius: 50%;
}

.service-visual {
    background-color: transparent;
    padding: 0;
    border-radius: 4px;
    text-align: center;
}

.service-visual-placeholder {
    font-family: var(--font-serif);
    font-style: italic;
    opacity: 0.6;
}

/* Success Stories Page */
.case-study {
    padding: var(--spacing-2xl) 0;
    border-bottom: 1px solid var(--color-border);
}

.case-study:nth-child(even) {
    background-color: var(--color-light-alt);
}

.case-study-content {
    max-width: 800px;
    margin: 0 auto;
}

.case-study h3 {
    color: var(--color-primary);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
}

.case-study-section {
    margin-bottom: var(--spacing-md);
}

.case-study-section h4 {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.case-study-section p {
    color: var(--color-text-light);
}

.case-study-quote {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--color-primary);
    color: var(--color-text-on-dark);
    border-radius: 4px;
}

.case-study-quote p {
    font-family: var(--font-serif);
    font-style: italic;
    color: var(--color-text-on-dark);
    margin-bottom: var(--spacing-xs);
}

.case-study-quote cite {
    font-style: normal;
    font-size: 0.875rem;
    opacity: 0.7;
}

/* About Page */
.about-mission {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-light);
    text-align: center;
}

.about-mission blockquote {
    max-width: 800px;
    margin: 0 auto;
    font-family: var(--font-serif);
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-style: italic;
    color: var(--color-primary);
    line-height: 1.6;
}

.about-founder {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-light-alt);
}

.about-founder-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.founder-image {
    background-color: var(--color-bg);
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--color-text-on-dark);
    border-radius: 4px;
}

.founder-image-placeholder {
    font-family: var(--font-serif);
    font-style: italic;
    opacity: 0.6;
}

.founder-bio h2 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.founder-title {
    color: var(--color-accent);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.founder-bio p {
    color: var(--color-text-light);
}

.about-values {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-light);
}

.about-values h2 {
    text-align: center;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xl);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.value-item {
    text-align: center;
    padding: var(--spacing-lg);
}

.value-item svg {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.value-item h3 {
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.value-item p {
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

/* Contact Page */
.contact-content {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    max-width: 900px;
    margin: 0 auto;
}

.contact-method {
    padding: var(--spacing-xl);
    background-color: var(--color-light-alt);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: all var(--transition-base);
}

.contact-method:hover {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.contact-method svg {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.contact-method h3 {
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.contact-method p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.contact-method .btn {
    width: 100%;
}

.contact-info {
    margin-top: var(--spacing-xl);
    text-align: center;
}

.contact-info p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 992px) {
    .success-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .success-quote {
        border-left: none;
        padding-left: 0;
        border-top: 2px solid var(--color-accent);
        padding-top: var(--spacing-lg);
    }

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

    .footer-brand {
        grid-column: 1 / -1;
        margin-bottom: var(--spacing-md);
    }

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

    .service-detail:nth-child(even) .service-detail-content {
        direction: ltr;
    }

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

    .founder-image {
        max-width: 300px;
        margin: 0 auto;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--color-bg);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-cta {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: calc(var(--header-height) + var(--spacing-2xl)) var(--spacing-md) var(--spacing-2xl);
    }

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

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

    .footer-brand,
    .footer-nav,
    .footer-contact {
        margin-bottom: var(--spacing-lg);
    }

    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
    }

    .whatsapp-float svg {
        width: 24px;
        height: 24px;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 15px;
    }

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

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

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

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}