/* ==========================================================================
   DAYORAE (데이오래) Brand Proposal Showcase Stylesheet
   Design Philosophy: Luxury Warm Indigo & Champagne Rose Gold, Glassmorphism, Premium Typography
   ========================================================================== */

:root {
  /* Color Tokens */
  --bg-dark: #0D0F1D;
  --bg-card: rgba(26, 30, 54, 0.7);
  --bg-card-border: rgba(255, 255, 255, 0.12);
  --bg-light-alt: #14172B;
  
  --primary-gold: #D4AF37;
  --primary-gold-hover: #F3E5AB;
  --primary-rose: #E5A985;
  --accent-coral: #FF7E67;
  --text-main: #F5F7FA;
  --text-muted: #9BA4B5;
  --text-sub: #CBD5E1;

  --box-shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.35);
  --box-shadow-glow: 0 0 25px rgba(212, 175, 55, 0.25);
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.65;
  overflow-x: hidden;
}

/* Typography Helpers */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.3;
  color: #FFFFFF;
}

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

a:hover {
  color: var(--primary-gold-hover);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.bg-alt {
  background-color: var(--bg-light-alt);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.grid {
  display: grid;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.gap-md { gap: 24px; }
.gap-lg { gap: 40px; }

.margin-bottom-lg { margin-bottom: 48px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  text-decoration: none;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-gold), #B8860B);
  color: #0D0F1D;
  box-shadow: var(--box-shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(212, 175, 55, 0.45);
  color: #000;
}

.btn-primary-sm {
  padding: 8px 18px;
  font-size: 0.9rem;
  background: linear-gradient(135deg, var(--primary-gold), #B8860B);
  color: #0D0F1D;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #FFF;
}

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

.btn-outline:hover {
  background: rgba(212, 175, 55, 0.15);
}

/* Header & Nav */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition-fast);
  background: rgba(13, 15, 29, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.brand-logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.logo-accent {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  background: linear-gradient(135deg, #FFF, var(--primary-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 400;
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 28px;
}

.main-nav a {
  color: var(--text-sub);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.main-nav a:hover {
  color: var(--primary-gold);
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 160px 0 100px;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.25;
}

.orb-1 {
  width: 450px;
  height: 450px;
  background: var(--primary-gold);
  top: -100px;
  right: -50px;
}

.orb-2 {
  width: 550px;
  height: 550px;
  background: var(--accent-coral);
  bottom: -150px;
  left: -100px;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 40px;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: rgba(212, 175, 55, 0.12);
  border: 1px solid rgba(212, 175, 55, 0.3);
  color: var(--primary-gold);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--primary-gold);
  box-shadow: 0 0 8px var(--primary-gold);
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.text-highlight {
  background: linear-gradient(135deg, var(--primary-gold), var(--primary-rose));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-sub);
  margin-bottom: 32px;
  font-weight: 400;
}

.hero-meta {
  display: flex;
  gap: 24px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
  margin-bottom: 32px;
}

.meta-item {
  display: flex;
  flex-direction: column;
}

.meta-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.meta-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: #FFF;
}

.hero-buttons {
  display: flex;
  gap: 16px;
}

.hero-visual {
  position: relative;
}

.visual-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow-soft);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.visual-card:hover .hero-img {
  transform: scale(1.03);
}

.floating-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  background: rgba(13, 15, 29, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  backdrop-filter: blur(16px);
  color: #FFF;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.badge-top-right {
  top: 24px;
  right: -10px;
}

.badge-bottom-left {
  bottom: 24px;
  left: -10px;
}

.floating-badge .icon {
  font-size: 1.4rem;
}

.floating-badge strong {
  display: block;
  font-size: 0.9rem;
}

.floating-badge small {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Section Header Structure */
.section-header {
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary-gold);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

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

/* Section 1: Overview Info Boxes */
.info-box {
  padding: 36px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  backdrop-filter: blur(12px);
  position: relative;
  transition: transform var(--transition-fast);
}

.info-box:hover {
  transform: translateY(-4px);
}

.box-warning {
  border-left: 4px solid var(--accent-coral);
}

.box-success {
  border-left: 4px solid var(--primary-gold);
}

.box-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.info-box h3 {
  font-size: 1.35rem;
  margin-bottom: 20px;
}

.styled-list {
  list-style: none;
}

.styled-list li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 14px;
  color: var(--text-sub);
  font-size: 0.98rem;
}

.styled-list li::before {
  content: "•";
  position: absolute;
  left: 6px;
  top: -2px;
  color: var(--primary-gold);
  font-size: 1.3rem;
}

.styled-list strong {
  color: #FFF;
}

/* Section 2: Core Values */
.quote-banner {
  text-align: center;
  padding: 32px 24px;
  margin-bottom: 50px;
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(229, 169, 133, 0.05));
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: var(--radius-md);
}

.brand-quote {
  font-family: 'Gowun Batang', serif;
  font-size: 1.4rem;
  color: #FFF;
  line-height: 1.7;
}

.value-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast);
}

.value-card:hover {
  transform: translateY(-6px);
  border-color: rgba(212, 175, 55, 0.4);
}

.value-number {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 2.5rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.05);
}

.value-icon {
  font-size: 2.2rem;
  margin-bottom: 20px;
}

.value-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.value-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Section 3: Target Users */
.target-card {
  padding: 28px 24px;
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all var(--transition-fast);
}

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

.target-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(212, 175, 55, 0.15);
  color: var(--primary-gold);
  margin-bottom: 16px;
}

.target-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.target-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.target-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* Section 4: Key Features Steps & Simulator */
.features-steps-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-bottom: 60px;
}

.step-card {
  padding: 20px 14px;
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-md);
  text-align: center;
  position: relative;
}

.step-num {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--primary-gold);
  display: block;
  margin-bottom: 8px;
}

.step-card h4 {
  font-size: 0.92rem;
  margin-bottom: 6px;
}

.step-card p {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Interactive Simulator Showcase */
.simulator-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow-soft);
}

.simulator-header {
  padding: 24px 32px;
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid var(--bg-card-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.simulator-header h3 {
  font-size: 1.25rem;
}

.simulator-header p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.tab-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-sub);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #FFF;
}

.tab-btn.active {
  background: var(--primary-gold);
  color: #0D0F1D;
  border-color: var(--primary-gold);
}

.simulator-body {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 40px;
  padding: 40px;
  align-items: center;
}

.badge-cat {
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 700;
  background: rgba(212, 175, 55, 0.2);
  color: var(--primary-gold);
  margin-bottom: 16px;
}

.simulator-info h3 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.sim-tagline {
  font-family: 'Gowun Batang', serif;
  font-size: 1.1rem;
  color: var(--primary-rose);
  margin-bottom: 28px;
}

.sim-detail-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
}

.sim-detail-item {
  display: flex;
  gap: 16px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
}

.item-title {
  color: var(--text-muted);
  width: 140px;
  flex-shrink: 0;
}

.item-desc {
  color: #FFF;
  font-weight: 500;
}

.sim-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Phone Simulator Frame */
.simulator-phone {
  display: flex;
  justify-content: center;
}

.phone-frame {
  width: 320px;
  height: 560px;
  background: #000;
  border-radius: 40px;
  border: 10px solid #222538;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  position: relative;
  overflow: hidden;
}

.phone-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 18px;
  background: #222538;
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
  z-index: 10;
}

.phone-screen {
  width: 100%;
  height: 100%;
  overflow-y: auto;
  background: #FFF;
  color: #333;
}

.invitation-mobile-card {
  font-size: 0.8rem;
}

.inv-cover {
  position: relative;
  height: 240px;
  overflow: hidden;
}

.inv-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.inv-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 16px;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  color: #FFF;
}

.inv-badge {
  font-size: 0.65rem;
  letter-spacing: 1px;
  color: #D4AF37;
  display: block;
}

.inv-overlay h2 {
  font-size: 1.2rem;
  color: #FFF;
}

.inv-overlay p {
  font-size: 0.75rem;
  opacity: 0.8;
}

.inv-body {
  padding: 16px;
}

.inv-dday {
  text-align: center;
  margin-bottom: 12px;
  padding: 6px;
  background: #FDF4E3;
  border-radius: 6px;
  color: #8A6D3B;
  font-size: 0.75rem;
}

.inv-greeting {
  text-align: center;
  margin-bottom: 16px;
}

.inv-greeting h4 {
  font-size: 0.85rem;
  color: #111;
  margin-bottom: 6px;
}

.inv-greeting p {
  font-size: 0.72rem;
  color: #555;
  line-height: 1.5;
}

.inv-info-block {
  background: #F8F9FA;
  padding: 10px;
  border-radius: 8px;
  margin-bottom: 12px;
}

.info-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  margin-bottom: 4px;
}

.info-row span { color: #777; }
.info-row strong { color: #111; }

.inv-map-sim {
  background: #EEF2F5;
  border-radius: 8px;
  padding: 12px;
  text-align: center;
  font-size: 0.7rem;
  color: #666;
  margin-bottom: 12px;
}

.inv-footer-btn {
  text-align: center;
}

.inv-btn {
  width: 100%;
  padding: 10px;
  background: #1A1B2F;
  color: #FFF;
  border: none;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
}

/* Section 5: Differentiation Cards */
.diff-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-fast);
}

.diff-card:hover {
  transform: translateY(-4px);
  border-color: rgba(212, 175, 55, 0.3);
}

.diff-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.diff-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  color: #FFF;
}

.diff-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.card-highlight {
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.15), rgba(255, 126, 103, 0.1));
  border: 1px solid var(--primary-gold);
}

.highlight-text {
  color: #FFF !important;
  font-weight: 600;
  font-size: 1rem !important;
}

/* Section 6: Vision & Monetization */
.vision-card {
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
}

.vision-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 700;
  background: rgba(212, 175, 55, 0.2);
  color: var(--primary-gold);
  margin-bottom: 16px;
}

.vision-card h3 {
  font-size: 1.4rem;
  margin-bottom: 24px;
}

.conclusion-banner {
  text-align: center;
  padding: 60px 40px;
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.15), rgba(13, 15, 29, 0.9));
  border: 1px solid var(--primary-gold);
  border-radius: var(--radius-lg);
  box-shadow: var(--box-shadow-glow);
}

.conclusion-banner h2 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.conclusion-banner p {
  font-size: 1.1rem;
  color: var(--text-sub);
  margin-bottom: 28px;
}

.conclusion-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.contact-info {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.contact-info strong {
  color: var(--primary-gold);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 14px 24px;
  background: rgba(13, 15, 29, 0.95);
  border: 1px solid var(--primary-gold);
  color: #FFF;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Footer */
.site-footer {
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

/* Responsive Adjustments */
@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr; }
  .simulator-body { grid-template-columns: 1fr; }
  .features-steps-grid { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .main-nav { display: none; }
}

@media (max-width: 600px) {
  .hero-title { font-size: 2.2rem; }
  .features-steps-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-buttons { flex-direction: column; }
}