/* ==========================================================================
   GEPCO Bill Check Online - Design System & Stylesheet
   Domain: https://gepcobillcheck.online/
   ========================================================================== */

/* --- Root Color Palette & Variables --- */
:root {
  --font-primary: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  
  /* Color Tokens - Light Theme */
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.85);
  
  --primary: #059669; /* GEPCO Green */
  --primary-hover: #047857;
  --primary-light: #ecfdf5;
  --primary-glow: rgba(5, 150, 105, 0.25);
  
  --accent: #f59e0b; /* Amber Gold */
  --accent-hover: #d97706;
  --accent-light: #fffbeb;
  
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #94a3b8;
  
  --border-color: #e2e8f0;
  --border-focus: #059669;
  
  --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
  --card-shadow-hover: 0 20px 30px -10px rgba(5, 150, 105, 0.12);
  
  --badge-green-bg: #d1fae5;
  --badge-green-text: #065f46;
  --badge-gold-bg: #fef3c7;
  --badge-gold-text: #92400e;
  --badge-blue-bg: #e0f2fe;
  --badge-blue-text: #075985;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme Overrides */
[data-theme="dark"] {
  --bg-main: #0b1320;
  --bg-surface: #131f33;
  --bg-surface-elevated: #1a2942;
  --bg-glass: rgba(19, 31, 51, 0.85);
  
  --primary: #10b981;
  --primary-hover: #059669;
  --primary-light: rgba(16, 185, 129, 0.12);
  --primary-glow: rgba(16, 185, 129, 0.35);
  
  --accent: #fbbf24;
  --accent-light: rgba(251, 191, 36, 0.12);
  
  --text-main: #f1f5f9;
  --text-muted: #cbd5e1;
  --text-light: #64748b;
  
  --border-color: #24344d;
  --border-focus: #10b981;
  
  --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --card-shadow-hover: 0 20px 35px rgba(16, 185, 129, 0.2);
  
  --badge-green-bg: rgba(16, 185, 129, 0.2);
  --badge-green-text: #34d399;
  --badge-gold-bg: rgba(251, 191, 36, 0.2);
  --badge-gold-text: #fcd34d;
  --badge-blue-bg: rgba(56, 189, 248, 0.2);
  --badge-blue-text: #38bdf8;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

a:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

ul, ol {
  list-style: none;
}

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

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.text-primary { color: var(--primary); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 2rem; }

/* Breadcrumb */
.breadcrumb {
  margin-bottom: 1rem;
}
.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}
.breadcrumb-list li:not(:last-child)::after {
  content: "›";
  margin-left: 0.5rem;
  color: var(--text-light);
}
.breadcrumb-list a {
  color: var(--text-muted);
}
.breadcrumb-list a:hover {
  color: var(--primary);
}
.breadcrumb-list [aria-current="page"] {
  color: var(--primary);
  font-weight: 600;
}

/* --- Header / Navigation --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text-main);
  text-decoration: none !important;
}

.logo-badge {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), #0284c7);
  color: #ffffff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  box-shadow: 0 4px 12px var(--primary-glow);
}

.logo-text span {
  color: var(--primary);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-main);
  padding: 0.5rem 0.25rem;
  position: relative;
  text-decoration: none !important;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2.5px;
  background-color: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1.2rem;
}

.theme-toggle-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: rotate(15deg);
}

.mobile-toggle-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
}

/* --- Hero Section & Tool Box --- */
.hero {
  padding: 3rem 0 2.5rem 0;
  background: radial-gradient(circle at 50% 0%, var(--primary-light) 0%, transparent 60%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.hero-heading {
  font-size: 2.3rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 1rem;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

@media (min-width: 768px) {
  .hero-heading {
    font-size: 2.85rem;
  }
}

.hero-heading span {
  background: linear-gradient(135deg, var(--primary), #0284c7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
  max-width: 650px;
}

.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-surface);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
}

.trust-icon {
  color: var(--primary);
  font-weight: bold;
}

/* Tool Form Card */
.tool-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--card-shadow);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--primary), var(--accent), #0284c7);
}

.tool-card:hover {
  box-shadow: var(--card-shadow-hover);
}

.tool-card-header {
  margin-bottom: 1.5rem;
}

.tool-card-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tool-card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Input Type Tabs */
.input-tabs {
  display: flex;
  background: var(--bg-main);
  padding: 4px;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  border: 1px solid var(--border-color);
}

.tab-btn {
  flex: 1;
  padding: 0.6rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

.tab-btn.active {
  background: var(--bg-surface);
  color: var(--primary);
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

/* Input Group */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.form-input {
  width: 100%;
  height: 52px;
  padding: 0 1rem;
  font-size: 1.05rem;
  font-family: inherit;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--text-main);
  background-color: var(--bg-main);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  outline: none;
  transition: var(--transition);
}

.form-input:focus {
  border-color: var(--border-focus);
  background-color: var(--bg-surface);
  box-shadow: 0 0 0 4px var(--primary-light);
}

.input-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
  display: flex;
  justify-content: space-between;
}

.btn-primary {
  width: 100%;
  height: 52px;
  background: linear-gradient(135deg, var(--primary), #047857);
  color: #ffffff;
  font-size: 1.05rem;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: 0 4px 14px var(--primary-glow);
  transition: var(--transition);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #047857, #065f46);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Sample Quick Actions & History */
.sample-actions {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.825rem;
}

.sample-link {
  color: var(--primary);
  cursor: pointer;
  font-weight: 600;
}

.history-box {
  margin-top: 1.25rem;
}

.history-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

.history-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.history-tag {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: var(--transition);
}

.history-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* --- Section Layouts --- */
.section {
  padding: 4rem 0;
}

.section-alt {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 750px;
  margin: 0 auto 3rem auto;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
}

.section-tag {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  background-color: var(--primary-light);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* --- Cards & Grid --- */
.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

@media (min-width: 768px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 992px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.feature-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--primary-light);
}

.feature-icon {
  width: 52px;
  height: 52px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.feature-link {
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

/* --- Calculator Interactive Tool Widget --- */
.calc-widget {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--card-shadow);
}

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

@media (min-width: 768px) {
  .calc-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.calc-results {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.calc-result-row {
  display: flex;
  justify-content: space-between;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.95rem;
}

.calc-result-row.total {
  border-bottom: none;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--primary);
  padding-top: 1rem;
}

/* --- Peak Hours Real-Time Widget --- */
.peak-widget {
  background: linear-gradient(135deg, var(--bg-surface-elevated), var(--bg-surface));
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  position: relative;
}

.peak-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-weight: 800;
  font-size: 1rem;
  margin-bottom: 1rem;
}

.peak-status-badge.off-peak {
  background-color: var(--badge-green-bg);
  color: var(--badge-green-text);
}

.peak-status-badge.peak {
  background-color: var(--badge-gold-bg);
  color: var(--badge-gold-text);
}

.pulse-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: currentColor;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.3); }
  100% { opacity: 1; transform: scale(1); }
}

.clock-display {
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: 1px;
  margin: 0.5rem 0;
  color: var(--text-main);
}

/* --- Table Styling --- */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  margin: 1.5rem 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.data-table th {
  background: var(--bg-main);
  color: var(--text-main);
  font-weight: 700;
  padding: 0.85rem 1.15rem;
  border-bottom: 2px solid var(--border-color);
}

.data-table td {
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-muted);
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table tbody tr:nth-child(even) {
  background-color: var(--bg-main);
}

/* --- FAQ Accordion --- */
.faq-list {
  max-width: 850px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.faq-icon {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  color: var(--primary);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.5rem;
  color: var(--text-muted);
  font-size: 0.975rem;
  line-height: 1.65;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.5rem 1.25rem 1.5rem;
}

/* --- Content Page Layout (SEO Article & Guide) --- */
.content-wrapper {
  max-width: 880px;
  margin: 0 auto;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--card-shadow);
}

.content-body h2 {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-main);
  margin: 2rem 0 1rem 0;
  letter-spacing: -0.01em;
}

.content-body h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 1.5rem 0 0.75rem 0;
}

.content-body p {
  font-size: 1.025rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.content-body ul, .content-body ol {
  list-style: initial;
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-muted);
}

.content-body li {
  margin-bottom: 0.5rem;
}

.info-alert {
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  padding: 1.25rem 1.5rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.5rem 0;
  color: var(--text-main);
}

.info-alert h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

/* --- Cities & Districts Link Grid --- */
.city-pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1.5rem;
}

.city-pill {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
  text-decoration: none !important;
}

.city-pill:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--primary-light);
}

/* --- Footer --- */
.site-footer {
  margin-top: auto;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 3.5rem 0 1.5rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
}

.footer-col-desc {
  color: var(--text-muted);
  font-size: 0.925rem;
  margin-top: 0.75rem;
}

.footer-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.925rem;
  text-decoration: none;
}

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

.disclaimer-banner {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.55;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

/* Mobile Nav Drawer */
@media (max-width: 991px) {
  .mobile-toggle-btn {
    display: block;
  }
  
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    transform: translateY(-150%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
  }
  
  .main-nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: 0.75rem;
  }
  
  .nav-link {
    width: 100%;
    padding: 0.6rem 0;
  }
}