/* ============================================
   Alfredo Reyes Vault - Security Deposits Site
   Dark Premium Theme | HTML5 + CSS3
   ============================================ */

/* CSS Custom Properties */
:root {
    --color-black: #000000;
    --color-obsidian: #0a0a0a;
    --color-charcoal: #0f0f0f;
    --color-carbon: #111111;
    --color-white: #ffffff;
    --color-platinum: #f2f2f2;
    --color-silver: #9a9a9a;
    --color-graphite: #595959;
    --color-emerald: #1a472a;

    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --transition-smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

    --z-nav: 1000;
    --z-overlay: 900;
    --z-content: 100;
    --z-bg: 1;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-white);
    background-color: var(--color-black);
    overflow-x: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: opacity 0.3s var(--transition-smooth);
}

a:hover {
    opacity: 0.8;
}

ul {
    list-style: none;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-obsidian);
}

::-webkit-scrollbar-thumb {
    background: var(--color-graphite);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-silver);
}

/* Selection */
::selection {
    background: var(--color-emerald);
    color: var(--color-white);
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-nav);
    padding: 1.5rem 0;
    transition: all 0.5s var(--transition-smooth);
}

.nav.scrolled {
    padding: 0.75rem 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
}

.nav.scrolled .nav-link {
    color: var(--color-black);
}

.nav.scrolled .nav-logo-text {
    color: var(--color-black);
}

.nav.scrolled .nav-logo-vault {
    color: var(--color-graphite);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-serif);
}

.nav-logo-icon {
    width: 40px;
    height: 40px;
    background: var(--color-white);
    color: var(--color-black);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: -0.02em;
    border-radius: 0;
    transition: all 0.3s var(--transition-smooth);
}

.nav.scrolled .nav-logo-icon {
    background: var(--color-black);
    color: var(--color-white);
}

.nav-logo-text {
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--color-white);
    transition: color 0.5s var(--transition-smooth);
}

.nav-logo-vault {
    font-style: italic;
    color: var(--color-silver);
    margin-left: 0.25rem;
    transition: color 0.5s var(--transition-smooth);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-white);
    position: relative;
    padding: 0.25rem 0;
    transition: color 0.5s var(--transition-smooth);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: currentColor;
    transition: width 0.4s var(--transition-smooth);
}

.nav-link-external {
    font-weight: 700;
}

.nav-link-external::after {
    background: var(--color-emerald);
}

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

.nav-cta {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.625rem 1.5rem;
    border: 1px solid currentColor;
    color: var(--color-white);
    transition: all 0.4s var(--transition-smooth);
}

.nav-cta:hover {
    background: var(--color-white);
    color: var(--color-black);
    opacity: 1;
}

.nav.scrolled .nav-cta {
    color: var(--color-black);
    border-color: var(--color-black);
}

.nav.scrolled .nav-cta:hover {
    background: var(--color-black);
    color: var(--color-white);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 1.5px;
    background: currentColor;
    transition: all 0.3s var(--transition-smooth);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--color-obsidian);
}

.hero-carousel {
    position: absolute;
    inset: 0;
    z-index: var(--z-bg);
}

.hero-carousel-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.5s var(--transition-smooth), transform 8s linear;
    transform: scale(1.05);
}

.hero-carousel-slide.active {
    opacity: 1;
    transform: scale(1);
}

.hero-carousel-slide::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.7) 100%);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: calc(var(--z-bg) + 1);
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0,0,0,0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: var(--z-content);
    text-align: center;
    max-width: 900px;
    padding: 0 2rem;
    animation: fadeInUp 1.2s var(--transition-smooth) 0.3s both;
}

.hero-title {
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 0.9;
    margin-bottom: 1.5rem;
}

.hero-title-line {
    display: block;
    font-size: clamp(2.5rem, 8vw, 7rem);
    letter-spacing: -0.04em;
    color: var(--color-white);
}

.hero-title-accent {
    display: block;
    font-size: clamp(3rem, 10vw, 9rem);
    font-style: italic;
    font-weight: 400;
    letter-spacing: -0.04em;
    color: var(--color-silver);
    margin-top: 0.25rem;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.5rem);
    font-weight: 300;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-silver);
    margin-bottom: 1rem;
}

.hero-desc {
    font-size: 1rem;
    font-weight: 300;
    color: var(--color-silver);
    max-width: 500px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 1rem 2.5rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.4s var(--transition-smooth);
    font-family: var(--font-sans);
}

.btn-primary {
    background: var(--color-white);
    color: var(--color-black);
    border-color: var(--color-white);
}

.btn-primary:hover {
    background: transparent;
    color: var(--color-white);
    opacity: 1;
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
    background: var(--color-white);
    color: var(--color-black);
    border-color: var(--color-white);
    opacity: 1;
}

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

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-content);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    animation: fadeIn 1s var(--transition-smooth) 1.5s both;
}

.hero-scroll-text {
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-silver);
}

.hero-scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-silver), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

/* ============================================
   STATS BAR
   ============================================ */
.stats-bar {
    background: var(--color-white);
    padding: 3rem 0;
    position: relative;
    z-index: 10;
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border-top: 1px solid var(--color-platinum);
    border-bottom: 1px solid var(--color-platinum);
}

.stat-item {
    text-align: center;
    padding: 2rem 1rem;
    border-right: 1px solid var(--color-platinum);
}

.stat-item:last-child {
    border-right: none;
}

.stat-number {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 400;
    letter-spacing: -0.04em;
    color: var(--color-black);
    line-height: 1;
}

.stat-suffix {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 400;
    color: var(--color-graphite);
}

.stat-label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-graphite);
    margin-top: 0.5rem;
}

/* ============================================
   SECTION TAG
   ============================================ */
.section-tag {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-silver);
    margin-bottom: 1.5rem;
    padding: 0.5rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.section-tag.dark {
    color: var(--color-graphite);
    border-color: rgba(0, 0, 0, 0.15);
}

/* ============================================
   PHILOSOPHY SECTION
   ============================================ */
.philosophy {
    position: relative;
    padding: 10rem 0;
    background: var(--color-black);
    overflow: hidden;
}

.philosophy-bg-images {
    position: absolute;
    inset: 0;
    z-index: var(--z-bg);
    pointer-events: none;
}

.philosophy-bg-img {
    position: absolute;
    width: 280px;
    height: 380px;
    background-size: cover;
    background-position: center;
    opacity: 0;
    filter: grayscale(100%) blur(2px);
    transition: opacity 1s var(--transition-smooth);
}

.philosophy-bg-img:nth-child(1) {
    top: 10%;
    left: 5%;
    transform: rotate(-5deg);
}

.philosophy-bg-img:nth-child(2) {
    top: 20%;
    right: 8%;
    transform: rotate(3deg);
    transition-delay: 0.2s;
}

.philosophy-bg-img:nth-child(3) {
    bottom: 15%;
    left: 15%;
    transform: rotate(4deg);
    transition-delay: 0.4s;
}

.philosophy-bg-img.visible {
    opacity: 0.12;
}

.philosophy-overlay {
    position: absolute;
    inset: 0;
    z-index: calc(var(--z-bg) + 1);
    background: radial-gradient(ellipse at center, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.3) 100%);
}

.philosophy-content {
    position: relative;
    z-index: var(--z-content);
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    padding: 0 2rem;
}

.philosophy-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    letter-spacing: -0.03em;
    line-height: 1.2;
    color: var(--color-white);
    margin-bottom: 2rem;
}

.philosophy-text {
    font-size: 1.0625rem;
    font-weight: 300;
    line-height: 1.8;
    color: var(--color-silver);
    margin-bottom: 1.5rem;
}

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

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    background: var(--color-platinum);
    padding: 8rem 0;
}

.services-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.services-header {
    text-align: center;
    margin-bottom: 4rem;
}

.services-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    letter-spacing: -0.03em;
    line-height: 1.2;
    color: var(--color-black);
    margin-bottom: 1rem;
}

.services-desc {
    font-size: 1.0625rem;
    font-weight: 300;
    color: var(--color-graphite);
    max-width: 500px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.service-card {
    position: relative;
    background: var(--color-white);
    overflow: hidden;
    transition: transform 0.5s var(--transition-smooth);
}

.service-card:hover {
    transform: scale(0.98);
}

.service-card-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.service-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: filter 0.6s var(--transition-smooth), transform 0.6s var(--transition-smooth);
}

.service-card:hover .service-card-image img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.service-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.6) 100%);
}

.service-card-content {
    padding: 2rem;
    position: relative;
}

.service-card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-black);
    color: var(--color-white);
    margin-bottom: 1.25rem;
    transition: background 0.3s var(--transition-smooth);
}

.service-card:hover .service-card-icon {
    background: var(--color-emerald);
}

.service-card-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--color-black);
    margin-bottom: 0.75rem;
}

.service-card-text {
    font-size: 0.875rem;
    font-weight: 300;
    line-height: 1.7;
    color: var(--color-graphite);
    margin-bottom: 1.25rem;
}

.service-card-link {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-black);
    position: relative;
    padding-bottom: 0.25rem;
    opacity: 1;
}

.service-card-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s var(--transition-smooth);
}

.service-card:hover .service-card-link::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* ============================================
   PROCESS SECTION
   ============================================ */
.process {
    background: var(--color-obsidian);
    padding: 8rem 0;
    position: relative;
}

.process::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

.process-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

.process-header {
    text-align: center;
    margin-bottom: 4rem;
}

.process-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    letter-spacing: -0.03em;
    color: var(--color-white);
}

.process-steps {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    margin-bottom: 4rem;
}

.process-step {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    position: relative;
}

.process-step-number {
    font-family: var(--font-serif);
    font-size: 4rem;
    font-weight: 400;
    line-height: 1;
    color: rgba(255, 255, 255, 0.08);
    flex-shrink: 0;
    width: 100px;
    text-align: right;
}

.process-step-line {
    position: absolute;
    left: 100px;
    top: 70px;
    bottom: -3rem;
    width: 1px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.1), transparent);
}

.process-step:last-child .process-step-line {
    display: none;
}

.process-step-content {
    padding-top: 0.75rem;
    flex: 1;
}

.process-step-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-white);
    margin-bottom: 0.75rem;
}

.process-step-text {
    font-size: 0.9375rem;
    font-weight: 300;
    line-height: 1.7;
    color: var(--color-silver);
    max-width: 500px;
}

.process-checklist {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.checklist-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-silver);
}

.checklist-item svg {
    color: var(--color-emerald);
    flex-shrink: 0;
}

/* ============================================
   VAULTS GALLERY
   ============================================ */
.vaults {
    background: var(--color-platinum);
    padding: 8rem 0;
    overflow: hidden;
}

.vaults-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.vaults-header {
    text-align: center;
    margin-bottom: 4rem;
}

.vaults-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    letter-spacing: -0.03em;
    color: var(--color-black);
}

.vaults-gallery {
    overflow: hidden;
    margin: 0 -2rem;
    padding: 0 2rem;
}

.vaults-track {
    display: flex;
    gap: 1.5rem;
    transition: transform 0.6s var(--transition-smooth);
}

.vaults-item {
    flex: 0 0 380px;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.vaults-item img {
    width: 100%;
    height: 480px;
    object-fit: cover;
    filter: grayscale(100%);
    transition: filter 0.6s var(--transition-smooth), transform 0.6s var(--transition-smooth);
}

.vaults-item:hover img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.vaults-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 2rem;
    background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.8) 100%);
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.5s var(--transition-smooth);
}

.vaults-item:hover .vaults-item-overlay {
    transform: translateY(0);
    opacity: 1;
}

.vaults-item-location {
    display: block;
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-silver);
    margin-bottom: 0.25rem;
}

.vaults-item-name {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-white);
}

.vaults-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2.5rem;
}

.vaults-nav-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-black);
    color: var(--color-white);
    border: none;
    cursor: pointer;
    transition: all 0.3s var(--transition-smooth);
}

.vaults-nav-btn:hover {
    background: var(--color-emerald);
}

/* ============================================
   TECHNICAL SPECS
   ============================================ */
.specs {
    background: var(--color-carbon);
    padding: 8rem 0;
    position: relative;
    overflow: hidden;
}

.specs::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
}

.specs-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

.specs-header {
    text-align: center;
    margin-bottom: 4rem;
}

.specs-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    letter-spacing: -0.03em;
    color: var(--color-white);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 5rem;
}

.spec-item {
    padding: 1.5rem 1rem;
    text-align: center;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.spec-item:nth-child(4n) {
    border-right: none;
}

.spec-item:nth-last-child(-n+4) {
    border-bottom: none;
}

.spec-label {
    display: block;
    font-size: 0.625rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-graphite);
    margin-bottom: 0.5rem;
}

.spec-value {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-white);
    letter-spacing: -0.02em;
}

/* Cylinder Text Effect */
.specs-cylinder {
    display: flex;
    justify-content: center;
    gap: 3rem;
    perspective: 1000px;
    overflow: hidden;
    height: 200px;
    position: relative;
    mask-image: linear-gradient(to bottom, transparent 0%, black 20%, black 80%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, transparent 0%, black 20%, black 80%, transparent 100%);
}

.cylinder-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: cylinderScroll 20s linear infinite;
}

.cylinder-column.cylinder-left {
    animation-direction: normal;
    opacity: 0.4;
}

.cylinder-column.cylinder-center {
    animation-direction: reverse;
    animation-duration: 25s;
}

.cylinder-column.cylinder-right {
    animation-direction: normal;
    animation-duration: 22s;
    opacity: 0.4;
}

.cylinder-column span {
    font-family: var(--font-serif);
    font-size: clamp(1.25rem, 2.5vw, 2rem);
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-white);
    white-space: nowrap;
    text-align: center;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    background: var(--color-white);
    padding: 8rem 0;
}

.contact-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 5rem;
    align-items: start;
}

.contact-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 400;
    letter-spacing: -0.03em;
    color: var(--color-black);
    margin-bottom: 1rem;
}

.contact-desc {
    font-size: 1rem;
    font-weight: 300;
    line-height: 1.7;
    color: var(--color-graphite);
    margin-bottom: 2.5rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.9375rem;
    color: var(--color-black);
}

.contact-info-item svg {
    color: var(--color-graphite);
    flex-shrink: 0;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-graphite);
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    padding: 0.875rem 1rem;
    border: 1px solid var(--color-platinum);
    background: var(--color-white);
    color: var(--color-black);
    outline: none;
    transition: border-color 0.3s var(--transition-smooth);
    border-radius: 0;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-black);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-silver);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23595959' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-white);
    padding: 5rem 0 2rem;
    border-top: 1px solid var(--color-platinum);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-serif);
    margin-bottom: 1.25rem;
}

.footer-logo-icon {
    width: 36px;
    height: 36px;
    background: var(--color-black);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.75rem;
}

.footer-logo-text {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-black);
}

.footer-logo-vault {
    font-style: italic;
    color: var(--color-graphite);
    margin-left: 0.25rem;
}

.footer-desc {
    font-size: 0.875rem;
    font-weight: 300;
    line-height: 1.7;
    color: var(--color-graphite);
    margin-bottom: 1.5rem;
    max-width: 320px;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-platinum);
    color: var(--color-graphite);
    transition: all 0.3s var(--transition-smooth);
}

.footer-social a:hover {
    background: var(--color-black);
    color: var(--color-white);
    opacity: 1;
}

.footer-links-title {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-black);
    margin-bottom: 1.25rem;
}

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

.footer-links a {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-graphite);
    transition: color 0.3s var(--transition-smooth);
    opacity: 1;
}

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

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

.footer-copyright {
    font-size: 0.8125rem;
    font-weight: 400;
    color: var(--color-graphite);
}

.footer-legal {
    display: flex;
    gap: 1.5rem;
}

.footer-legal a {
    font-size: 0.8125rem;
    font-weight: 400;
    color: var(--color-graphite);
    opacity: 1;
}

.footer-legal a:hover {
    color: var(--color-black);
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scrollPulse {
    0%, 100% {
        opacity: 0.3;
        transform: scaleY(1);
    }
    50% {
        opacity: 1;
        transform: scaleY(1.2);
    }
}

@keyframes cylinderScroll {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-50%);
    }
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--transition-smooth), transform 0.8s var(--transition-smooth);
}

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: 1fr;
    }

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

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

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

    .spec-item:nth-child(4n) {
        border-right: 1px solid rgba(255, 255, 255, 0.08);
    }

    .spec-item:nth-child(2n) {
        border-right: none;
    }

    .spec-item:nth-last-child(-n+4) {
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .spec-item:nth-last-child(-n+2) {
        border-bottom: none;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-white);
        flex-direction: column;
        justify-content: center;
        gap: 0;
        padding: 2rem;
        transition: right 0.5s var(--transition-smooth);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-link {
        color: var(--color-black);
        font-size: 1.25rem;
        padding: 1rem 0;
        border-bottom: 1px solid var(--color-platinum);
    }

    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: flex;
        z-index: calc(var(--z-nav) + 1);
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

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

    .stat-item:nth-child(2) {
        border-right: none;
    }

    .stat-item:nth-child(1),
    .stat-item:nth-child(2) {
        border-bottom: 1px solid var(--color-platinum);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

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

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

    .process-step {
        flex-direction: column;
        gap: 1rem;
    }

    .process-step-number {
        text-align: left;
        font-size: 3rem;
    }

    .process-step-line {
        display: none;
    }

    .vaults-item {
        flex: 0 0 300px;
    }

    .specs-cylinder {
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .stats-container {
        grid-template-columns: 1fr;
    }

    .stat-item {
        border-right: none;
        border-bottom: 1px solid var(--color-platinum);
    }

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

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

    .spec-item {
        border-right: none;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

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