/* ==========================================================================
   Platinum Glass Works LLC Design System & Stylesheet
   ========================================================================== */

/* Design Tokens & CSS Custom Properties */
:root {
  /* Color Palette */
  --bg-primary: #000000;           /* Pitch Black */
  --bg-secondary: #0c0c0e;         /* Extremely Dark Metallic Gray */
  --bg-card: #121215;              /* Dark Platinum Metallic Card */
  --bg-card-hover: #1a1a1f;        /* Glowing Silver Gray Hover */
  --bg-charcoal: #111111;          /* Deep Charcoal for Footer Separator */
  --bg-input: #18181c;             /* Input backgrounds */
  
  --text-primary: #ffffff;         /* Pure white */
  --text-silver: #e5e5e5;          /* Chrome silver white */
  --text-gray: #a1a1a6;            /* Clean light grey */
  
  /* Electric Blue Accents */
  --blue-glow-start: #00d2ff;
  --blue-glow-end: #0078ff;
  --blue-primary: #0088ff;
  --blue-hover: #1aa0ff;
  --blue-deep: #0055cc;
  
  /* Typography */
  --font-display: 'Cinzel', serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-accent: 'Montserrat', sans-serif;
  
  /* Layout */
  --container-max-width: 1200px;
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--bg-primary);
  color: var(--text-silver);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  position: relative;
}

/* Custom Scrollbars */
html {
  scrollbar-color: var(--blue-primary) var(--bg-secondary);
  scrollbar-width: thin;
}

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-card);
  border: 2px solid var(--bg-primary);
  border-radius: var(--border-radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--blue-primary);
}

/* Typography Base */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-primary);
}

h1 {
  text-wrap: balance;
}

p {
  text-wrap: pretty;
  color: var(--text-gray);
}

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

a:hover {
  color: var(--blue-glow-start);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

/* Chrome/Silver Metallic Text Gradient */
.text-chrome {
  background: linear-gradient(135deg, #ffffff 0%, #e5e5e5 25%, #999999 50%, #e5e5e5 75%, #ffffff 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shine 6s linear infinite alternate;
}

@keyframes shine {
  to {
    background-position: 200% center;
  }
}

.highlight-blue {
  background: linear-gradient(90deg, var(--blue-glow-start) 0%, var(--blue-glow-end) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* CTA Buttons */
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-accent);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.9rem 2.25rem;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-smooth);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.cta-button.glow-accent {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--blue-primary);
  box-shadow: 0 0 10px rgba(0, 136, 255, 0.2);
}

.cta-button.glow-accent:hover {
  background: var(--blue-primary);
  box-shadow: 0 0 20px rgba(0, 210, 255, 0.6);
  transform: translateY(-2px);
}

.cta-button.fill-blue {
  background: linear-gradient(135deg, var(--blue-glow-start) 0%, var(--blue-glow-end) 100%);
  color: var(--text-primary);
  box-shadow: 0 4px 15px rgba(0, 120, 255, 0.4);
}

.cta-button.fill-blue:hover {
  background: linear-gradient(135deg, var(--blue-glow-end) 0%, var(--blue-primary) 100%);
  box-shadow: 0 6px 25px rgba(0, 210, 255, 0.7);
  transform: translateY(-2px);
}

.cta-button.outline-silver {
  background: transparent;
  color: var(--text-silver);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.cta-button.outline-silver:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--text-primary);
  transform: translateY(-2px);
}

.cta-button.massive-cta {
  font-size: 1.25rem;
  padding: 1.25rem 3.5rem;
  box-shadow: 0 8px 30px rgba(0, 120, 255, 0.5);
}

.cta-button:active {
  transform: translateY(1px);
}

/* Focus Indicator Ring for Accessibility */
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--blue-glow-start);
  outline-offset: 4px;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
#main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: padding var(--transition-fast);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
}

.logo-link {
  display: flex;
  align-items: center;
  height: 88px;
}

.logo-image {
  height: 100%;
  width: auto;
  transition: transform var(--transition-smooth);
}

.logo-image:hover {
  transform: scale(1.02);
}

#nav-links {
  display: flex;
  list-style: none;
  gap: 2.5rem;
}

#nav-links a {
  font-family: var(--font-accent);
  font-weight: 600;
  font-size: 1.15rem; /* Increased by 2pt */
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-silver);
  position: relative;
  padding: 0.5rem 0;
}

#nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--blue-glow-start);
  transition: width var(--transition-fast);
}

#nav-links a:hover {
  color: var(--text-primary);
}

#nav-links a:hover::after {
  width: 100%;
}

#mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
  width: 30px;
  height: 24px;
}

#mobile-menu-toggle .hamburger-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  background-color: var(--bg-primary);
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('assets/logo.jpg');
  background-size: min(95%, 780px);
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.58; /* Enhanced watermark visibility */
  z-index: 0;
}

.hero-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  /* Spotlight overlay for the centered watermark */
  background: radial-gradient(circle at 50% 50%, rgba(0, 0, 0, 0.25) 0%, rgba(0, 0, 0, 0.85) 80%),
              linear-gradient(180deg, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.95) 100%);
  z-index: 1;
}

.hero-container {
  position: relative;
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  z-index: 2;
}

.hero-content {
  max-width: 720px;
}

.hero-headline {
  font-size: clamp(2.5rem, 5vw, 4.25rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero-subheadline {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--text-silver);
  margin-bottom: 2.5rem;
  max-width: 620px;
  opacity: 0.95;
}

.hero-actions {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

/* ==========================================================================
   Core Services Grid
   ========================================================================== */
#services {
  padding: 8rem 0;
  background-color: var(--bg-primary);
}

.section-header {
  margin-bottom: 4.5rem;
}

.section-title {
  font-size: clamp(2rem, 3vw, 2.75rem);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-gray);
  max-width: 600px;
  margin: 0 auto;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--bg-card);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  /* Thin metallic border */
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  transition: all var(--transition-smooth);
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 210, 255, 0.35);
  box-shadow: 0 15px 40px rgba(0, 136, 255, 0.15);
}

.card-image-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
}

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

.card-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(0,0,0,0) 50%, rgba(0,0,0,0.85) 100%);
  z-index: 1;
}

.service-card:hover .card-image {
  transform: scale(1.06);
}

.card-body {
  padding: 2rem 1.75rem 2.25rem;
}

.card-icon-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.card-icon-title h3 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.service-icon {
  font-size: 1.6rem;
}

.card-body p {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ==========================================================================
   Why Partner Section
   ========================================================================== */
#about {
  padding: 8rem 0;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  position: relative;
}

.why-partner-wrap {
  background: radial-gradient(circle at 10% 20%, rgba(0, 136, 255, 0.05) 0%, transparent 40%),
              rgba(255, 255, 255, 0.01);
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.04);
  padding: 4.5rem 3rem;
  backdrop-filter: blur(10px);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  margin-top: 3.5rem;
}

.why-card {
  text-align: center;
  padding: 2rem 1.5rem;
  border-radius: var(--border-radius-md);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all var(--transition-smooth);
}

.why-card:hover {
  transform: scale(1.02);
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(0, 210, 255, 0.2);
}

.why-icon-container {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: rgba(0, 136, 255, 0.1);
  border: 1px solid rgba(0, 210, 255, 0.2);
  margin-bottom: 1.5rem;
  color: var(--blue-glow-start);
  font-size: 2rem;
  box-shadow: 0 0 15px rgba(0, 136, 255, 0.08);
}

.why-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.why-card p {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ==========================================================================
   Footer CTA Block
   ========================================================================== */
.footer-cta-block {
  padding: 7rem 0;
  background-color: var(--bg-charcoal);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
  overflow: hidden;
}

.footer-cta-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 250px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue-glow-start), transparent);
}

.footer-cta-title {
  font-size: clamp(2rem, 3.5vw, 2.5rem);
  margin-bottom: 1.25rem;
}

.footer-cta-desc {
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 3rem;
}

.mail-emoji {
  margin-right: 0.5rem;
}

/* ==========================================================================
   Footer Info Details
   ========================================================================== */
#main-footer {
  padding: 4.5rem 0 3rem;
  background-color: #08080a;
  border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.footer-details {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  align-items: flex-start;
}

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

.footer-logo {
  height: 70px;
  width: auto;
  align-self: flex-start;
}

.footer-tagline {
  font-size: 0.95rem;
  color: var(--text-gray);
  margin-top: 0.5rem;
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-contact-link {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--text-silver);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-contact-link:hover {
  color: var(--blue-glow-start);
}

.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-align: right;
}

.licensing-info {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-primary);
}

.copyright-info {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ==========================================================================
   Native Dialog Modal (<dialog>) & Form Validation
   ========================================================================== */
#quote-dialog {
  margin: auto;
  border: none;
  background: transparent;
  max-width: 600px;
  width: 90%;
  border-radius: var(--border-radius-lg);
  outline: none;
  overflow: visible;
  z-index: 1001;
}

/* Dialog Backdrop (Blur Effect) */
#quote-dialog::backdrop {
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

/* Open Animation for Backdrop */
#quote-dialog[open]::backdrop {
  opacity: 1;
}

.dialog-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(0, 136, 255, 0.1);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem;
  position: relative;
  /* Starting Style for Entry Animation */
  transform: translateY(30px) scale(0.95);
  opacity: 0;
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
}

#quote-dialog[open] .dialog-card {
  transform: translateY(0) scale(1);
  opacity: 1;
}

/* CSS @starting-style to support smooth native exit/entry animations in supported browsers */
@starting-style {
  #quote-dialog[open] .dialog-card {
    transform: translateY(30px) scale(0.95);
    opacity: 0;
  }
  #quote-dialog[open]::backdrop {
    opacity: 0;
  }
}

.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.dialog-header h2 {
  font-size: 1.85rem;
}

.close-icon-btn {
  background: transparent;
  border: none;
  color: var(--text-gray);
  font-size: 2.25rem;
  line-height: 1;
  cursor: pointer;
  transition: color var(--transition-fast);
  padding: 0.25rem;
}

.close-icon-btn:hover {
  color: var(--text-primary);
}

.form-desc {
  font-size: 0.95rem;
  margin-bottom: 2rem;
  color: var(--text-silver);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

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

.form-field.full-width {
  grid-column: span 2;
}

.form-field label {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--text-primary);
}

.form-field .optional {
  color: var(--text-gray);
  font-size: 0.75rem;
}

/* Premium form inputs with active glows */
.form-field input,
.form-field select,
.form-field textarea {
  background-color: var(--bg-input);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  width: 100%;
}

.form-field textarea {
  resize: vertical;
}

.form-field input:hover,
.form-field select:hover,
.form-field textarea:hover {
  border-color: rgba(255, 255, 255, 0.25);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--blue-primary);
  box-shadow: 0 0 10px rgba(0, 136, 255, 0.25);
  background-color: #1f1f26;
}

/* User-interactive validation states using :user-invalid for premium UX */
.form-field input:user-invalid,
.form-field select:user-invalid,
.form-field textarea:user-invalid {
  border-color: #ff3344 !important;
  box-shadow: 0 0 10px rgba(255, 51, 68, 0.15) !important;
}

.error-msg {
  display: none;
  color: #ff3344;
  font-size: 0.8rem;
  margin-top: 0.25rem;
}

/* Programmatically show validation error messages after interactive focus exit */
.form-field.invalid .error-msg {
  display: block;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
}

/* Glassmorphic success toast notification */
.glass-toast {
  position: fixed;
  bottom: 2.5rem;
  right: 2.5rem;
  background: rgba(18, 18, 21, 0.85);
  border: 1px solid rgba(0, 210, 255, 0.35);
  border-radius: var(--border-radius-md);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.7), 0 0 20px rgba(0, 136, 255, 0.1);
  padding: 1.25rem 2rem;
  z-index: 2000;
  backdrop-filter: blur(12px);
  transform: translateY(120%) scale(0.9);
  opacity: 0;
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
}

.glass-toast.show {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.toast-content {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.toast-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background-color: var(--blue-primary);
  border-radius: 50%;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 0.85rem;
}

.toast-text h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.toast-text p {
  font-size: 0.875rem;
  color: var(--text-silver);
}

/* ==========================================================================
   Scroll-driven / Class entry animations
   ========================================================================== */
.scroll-animate {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-animate.animated {
  opacity: 1;
  transform: translateY(0);
}

/* Standard animation utility */
.fade-in-up {
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  #nav-links {
    gap: 1.5rem;
  }
  
  .footer-details {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
  
  .footer-meta {
    grid-column: span 2;
    text-align: left;
  }
}

@media (max-width: 768px) {
  /* Mobile Menu Styles */
  #mobile-menu-toggle {
    display: flex;
  }
  
  #nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 2.5rem 1.5rem;
    gap: 1.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: transform var(--transition-smooth), opacity var(--transition-smooth);
  }
  
  #nav-links.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  
  .header-cta {
    display: none; /* Hide top CTA to save screen estate, rely on hero/footer */
  }
  
  #hero {
    min-height: 85vh;
    padding-top: 80px;
  }
  
  .hero-headline {
    font-size: 2.25rem;
  }
  
  .why-partner-wrap {
    padding: 3rem 1.5rem;
  }
  
  .why-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-details {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-meta {
    grid-column: span 1;
  }
  
  /* Modal inputs single column */
  .form-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  
  .form-field.full-width {
    grid-column: span 1;
  }
  
  .dialog-card {
    padding: 1.75rem;
  }
}