/*
Theme Name: El Visuals
Theme URI: https://elvisuals.com
Author: El Visuals (EverLiving Architects)
Author URI: https://elvisuals.com
Description: Premium dark-themed architectural visualization portfolio theme with cinematic presentation
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: elvisuals
Tags: portfolio, dark, architecture, visualization, creative
*/

/* ============================================
   CSS VARIABLES & DESIGN TOKENS
   ============================================ */
:root {
  /* Colors - Dark Palette */
  --color-black: #0a0a0a;
  --color-charcoal: #111111;
  --color-dark-grey: #1a1a1a;
  --color-medium-grey: #222222;
  --color-border: #333333;
  
  /* Orange Gradient Accent */
  --gradient-orange: linear-gradient(135deg, #ff6b35 0%, #ff9a56 100%);
  --color-orange-primary: #ff6b35;
  --color-orange-secondary: #ff9a56;
  
  /* Text Colors */
  --color-text-primary: #ffffff;
  --color-text-secondary: #a0a0a0;
  --color-text-muted: #666666;
  
  /* Typography */
  --font-display: 'Cormorant Garamond', 'Playfair Display', serif;
  --font-body: 'Manrope', 'Inter', -apple-system, sans-serif;
  
  /* Font Sizes - Fluid Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.5vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.3rem + 0.8vw, 2rem);
  --text-2xl: clamp(2rem, 1.7rem + 1.2vw, 3rem);
  --text-3xl: clamp(2.5rem, 2rem + 2vw, 4.5rem);
  --text-4xl: clamp(3.5rem, 2.5rem + 3vw, 6.5rem);
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 8rem;
  --space-3xl: 12rem;
  
  /* Layout */
  --container-max: 1400px;
  --container-padding: 2rem;
  --grid-gap: 2rem;
  
  /* Transitions */
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(255, 107, 53, 0.3);
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-black);
  overflow-x: hidden;
  position: relative;
}

/* Noise Texture Overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.6;
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
  transition: var(--transition-base);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: var(--text-4xl);
  font-weight: 300;
}

h2 {
  font-size: var(--text-3xl);
}

h3 {
  font-size: var(--text-2xl);
}

h4 {
  font-size: var(--text-xl);
}

p {
  margin-bottom: var(--space-sm);
  color: var(--color-text-secondary);
  font-weight: 300;
  letter-spacing: 0.01em;
}

.text-gradient {
  background: var(--gradient-orange);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.container-fluid {
  width: 100%;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-2xl) 0;
  position: relative;
}

.section-lg {
  padding: var(--space-3xl) 0;
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: transform var(--transition-smooth), background var(--transition-base);
}

.site-header.hidden {
  transform: translateY(-100%);
}

.site-header.scrolled {
  background: rgba(10, 10, 10, 0.95);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

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

.site-logo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  letter-spacing: 0.05em;
}

.site-logo a {
  display: inline-block;
  position: relative;
}

.site-logo .logo-text {
  position: relative;
  z-index: 1;
}

.site-logo .logo-accent {
  background: var(--gradient-orange);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation */
.main-nav ul {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.main-nav a {
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 500;
  position: relative;
  padding: var(--space-xs) 0;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gradient-orange);
  transition: width var(--transition-base);
}

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

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 30px;
  height: 24px;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  transition: var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translateY(10px);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translateY(-10px);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 0;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-background video,
.hero-background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-background::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(10, 10, 10, 0.3) 0%, rgba(10, 10, 10, 0.7) 100%);
}

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

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

.hero-title {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-md);
  font-weight: 300;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  font-weight: 300;
  line-height: 1.8;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(10px);
  }
}

.scroll-indicator::after {
  content: '';
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, transparent, var(--color-text-secondary));
}

/* ============================================
   BUTTONS & CTAs
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 0;
  cursor: pointer;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-orange);
  color: var(--color-black);
  box-shadow: var(--shadow-glow);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s;
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(255, 107, 53, 0.5);
}

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

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

/* ============================================
   PORTFOLIO GRID
   ============================================ */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: var(--grid-gap);
  margin-top: var(--space-xl);
}

.portfolio-item {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  cursor: pointer;
  background: var(--color-charcoal);
}

.portfolio-item-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--transition-smooth);
}

.portfolio-item:hover .portfolio-item-image {
  transform: scale(1.1);
}

.portfolio-item-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, transparent 0%, rgba(10, 10, 10, 0.9) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-lg);
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.portfolio-item:hover .portfolio-item-overlay {
  opacity: 1;
}

.portfolio-item-category {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-orange-primary);
  margin-bottom: var(--space-xs);
}

.portfolio-item-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  margin: 0;
}

/* ============================================
   SERVICES
   ============================================ */
.services-tabs {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
  scrollbar-width: none;
}

.services-tabs::-webkit-scrollbar {
  display: none;
}

.service-tab {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  white-space: nowrap;
  position: relative;
  border-bottom: 2px solid transparent;
  transition: var(--transition-base);
}

.service-tab.active {
  color: var(--color-text-primary);
  border-bottom-color: var(--color-orange-primary);
}

.service-tab:hover {
  color: var(--color-text-primary);
}

.service-content {
  display: none;
  animation: fadeIn 0.5s ease-in-out;
}

.service-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.service-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  margin-bottom: var(--space-xl);
}

.service-description h3 {
  margin-bottom: var(--space-md);
}

.service-image {
  width: 100%;
  height: 400px;
  object-fit: cover;
}

/* ============================================
   FILTERS
   ============================================ */
.portfolio-filters {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--space-xs) var(--space-md);
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  transition: var(--transition-base);
}

.filter-btn.active,
.filter-btn:hover {
  color: var(--color-text-primary);
  border-color: var(--color-orange-primary);
  background: rgba(255, 107, 53, 0.1);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--color-charcoal);
  border-top: 1px solid var(--color-border);
  padding: var(--space-xl) 0 var(--space-md);
  margin-top: var(--space-3xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-section h4 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
}

.footer-section ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-section a {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

.footer-section a:hover {
  color: var(--color-orange-primary);
}

.footer-bottom {
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--transition-smooth), transform 0.8s var(--transition-smooth);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

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

.mt-lg {
  margin-top: var(--space-lg);
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  :root {
    --container-padding: 1.5rem;
    --grid-gap: 1.5rem;
  }
  
  .portfolio-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
  
  .service-header {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
    --space-xl: 4rem;
    --space-2xl: 5rem;
    --space-3xl: 6rem;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--color-black);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: right var(--transition-smooth);
  }
  
  .main-nav.active {
    right: 0;
  }
  
  .main-nav ul {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
  
  .main-nav a {
    font-size: var(--text-lg);
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: var(--text-3xl);
  }
  
  .scroll-indicator {
    bottom: var(--space-md);
  }
}