/* ==========================================================================
   style.css — Konechiba Senpai | Eternal Production
   Premium Glassmorphism Dark/Light Theme Design
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* === CSS VARIABLES === */
:root {
  /* Fonts */
  --font-main: 'Plus Jakarta Sans', sans-serif;

  /* Colors - Default Black & Red Theme (formerly Light) */
  --bg-gradient: radial-gradient(
    circle at top left,
    #4d0000 0%,
    #220000 25%,
    #0f0000 50%,
    #050505 75%,
    #000000 100%
  );
  --bg-solid: #000000;
  --text-primary: #ffffff;
  --text-secondary: #f3f4f6;
  --text-muted: #9ca3af;
  --accent: #ff3333;
  --accent-glow: rgba(255, 51, 51, 0.25);
  --accent-hover: #ff1a1a;
  
  /* Glassmorphism Elements */
  --glass-bg: rgba(15, 0, 0, 0.65);
  --glass-border: rgba(255, 51, 51, 0.15);
  --glass-shadow: 0 8px 32px 0 rgba(255, 0, 0, 0.12);
  --glass-blur: blur(20px);
  
  /* Specific UI Panels */
  --nav-bg: rgba(10, 0, 0, 0.85);
  --nav-border: rgba(255, 51, 51, 0.12);
  --side-menu-bg: rgba(5, 0, 0, 0.98);
  --card-hover-bg: rgba(255, 0, 0, 0.08);
  --border-light: rgba(255, 255, 255, 0.08);

  /* Common Variables */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 30px;
}

html[data-theme="dark"] {
  /* Colors - Crimson Dark Theme */
  --bg-gradient: radial-gradient(
    circle at top left,
    #8b0000 0%,
    #4d0000 25%,
    #1a0000 50%,
    #050505 75%,
    #000000 100%
  );

  --bg-solid: #000000;
  --text-primary: #f9fafb;
  --text-secondary: #d1d5db;
  --text-muted: #9ca3af;

  /* Red Theme */
  --accent: #ff1a1a;
  --accent-glow: rgba(255, 0, 0, 0.30);
  --accent-hover: #ff4040;

  /* Glassmorphism */
  --glass-bg: rgba(20, 0, 0, 0.55);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(255, 0, 0, 0.15);
  --glass-blur: blur(20px);

  /* Panels */
  --nav-bg: rgba(15, 0, 0, 0.80);
  --nav-border: rgba(255, 0, 0, 0.08);
  --side-menu-bg: rgba(10, 0, 0, 0.97);
  --card-hover-bg: rgba(255, 0, 0, 0.05);
  --border-light: rgba(255, 255, 255, 0.06);

}

/* === RESET & BASE === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-main);
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background var(--transition-slow), color var(--transition-normal);
  line-height: 1.6;
}

/* === LOADING SCREEN === */
.loading-screen {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--bg-solid);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 1;
  visibility: visible;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.loading-screen.is-hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-mark {
  width: 45px;
  height: 45px;
  border: 3px solid var(--border-light);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s cubic-bezier(0.5, 0.1, 0.5, 0.9) infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* === APP SHELL === */
#app-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

#app-shell::before,
#app-shell::after {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(255, 0, 0, 0.35) 0%,
    rgba(120, 0, 0, 0.20) 40%,
    transparent 100%
  );
  filter: blur(120px);
  z-index: -1;
  pointer-events: none;
  animation: float 10s ease-in-out infinite alternate;
}

#app-shell::before {
  top: 5%;
  left: -150px;
}

#app-shell::after {
  bottom: 10%;
  right: -150px;
  animation-delay: -5s;

}

#app-shell::before {
  top: 15%;
  left: -100px;
}

#app-shell::after {
  bottom: 20%;
  right: -100px;
  animation-delay: -5s;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(50px, 50px) scale(1.1); }
}

/* === GLASS CARD COMMON === */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-normal), background-color var(--transition-normal), border var(--transition-normal), box-shadow var(--transition-normal);
}

/* === NAVBAR === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 70px;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--nav-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--nav-border);
  z-index: 1000;
  transition: background var(--transition-normal), border var(--transition-normal);
}

.navbar-left, .navbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Brand Name */
.brand {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  text-transform: uppercase;
}

.brand span {
  color: var(--accent);
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Hamburger Button */
.hamburger-btn {
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.hamburger-btn:hover {
  background: var(--border-light);
}

.hamburger-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.hamburger-btn.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger-btn.is-open span:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Theme Toggle Button */
.theme-toggle-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  cursor: pointer;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--text-primary);
  font-size: 1.1rem;
  box-shadow: var(--glass-shadow);
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.theme-toggle-btn:hover {
  transform: scale(1.08);
  background: var(--card-hover-bg);
}

.theme-toggle-btn:active {
  transform: scale(0.95);
}

/* PWA Install Button */
.nav-pill {
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-xl);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  transition: transform var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-pill.primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.nav-pill.primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

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

.install-pill {
  display: none !important; /* Hide initially */
}

.install-pill.is-visible {
  display: inline-flex !important; /* Display when eligible */
}

/* === SIDE DRAWER MENU === */
.side-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.side-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

.side-menu {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 300px;
  max-width: 85%;
  background: var(--side-menu-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1200;
  transform: translateX(-100%);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
  padding: 24px;
  box-shadow: 10px 0 30px rgba(0, 0, 0, 0.15);
  border-right: 1px solid var(--nav-border);
}

.side-menu.is-open {
  transform: translateX(0);
}

.side-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
}

.side-menu-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 1.25rem;
  width: 36px;
  height: 36px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  transition: background var(--transition-fast);
}

.side-menu-close:hover {
  background: var(--border-light);
}

.side-menu-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.side-menu-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-bottom: 12px;
  padding-left: 8px;
}

.side-menu-link {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 12px;
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.side-menu-link .icon {
  font-size: 1.15rem;
}

.side-menu-link:hover {
  color: var(--accent);
  background: var(--border-light);
  transform: translateX(5px);
}

.side-menu-link.active {
  color: #ffffff;
  background: var(--accent);
  box-shadow: 0 4px 15px var(--accent-glow);
}

.side-menu-link.active:hover {
  transform: none;
}

/* === PAGE CONTENT & HERO === */
.page-content {
  flex-grow: 1;
  padding: 110px 24px 60px 24px; /* Space for fixed navbar */
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
}

.hero {
  text-align: center;
  margin-bottom: 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-logo {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 20px;
  border: 4px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  background: var(--glass-bg);
  animation: logoPulse 4s ease-in-out infinite alternate;
}

@keyframes logoPulse {
  0% { transform: scale(1); box-shadow: 0 0 0 0 var(--accent-glow); }
  100% { transform: scale(1.03); box-shadow: 0 0 20px 4px var(--accent-glow); }
}

.hero-name {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 12px;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
}

.hero-bio {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
  line-height: 1.6;
}

/* === SOCIAL GRID === */
.social-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
}

.social-card {
  display: flex;
  align-items: center;
  padding: 16px 20px;
  text-decoration: none;
  color: var(--text-primary);
  opacity: 0;
  animation: slideInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

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

.social-card:hover {
  transform: translateY(-3px);
  background: var(--card-hover-bg);
  box-shadow: 0 12px 30px rgba(31, 38, 135, 0.12);
  border-color: var(--accent);
}

.social-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--border-light);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.35rem;
  color: var(--accent);
  flex-shrink: 0;
  margin-right: 18px;
  overflow: hidden;
  transition: transform var(--transition-fast), background var(--transition-fast);
}

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

.social-card:hover .social-icon {
  transform: scale(1.1) rotate(-5deg);
  background: var(--accent-glow);
}

.social-text {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.social-username {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.2px;
  margin-bottom: 2px;
}

.social-platform {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.social-arrow {
  font-size: 1.5rem;
  color: var(--text-muted);
  font-weight: 300;
  transition: transform var(--transition-fast), color var(--transition-fast);
  margin-left: 10px;
}

.social-card:hover .social-arrow {
  transform: translateX(4px);
  color: var(--accent);
}

/* Disabled State for invalid URL */
.social-card[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.6 !important;
}

.social-card[aria-disabled="true"] .social-arrow {
  display: none;
}

/* === DUB GRID (PROJECTS PAGE) === */
.page-header {
  text-align: center;
  margin-bottom: 40px;
}

.page-eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 8px;
}

.page-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 12px;
}

.page-sub {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.dub-grid {
  display: flex;
  flex-direction: column;
  gap: 28px;
  width: 100%;
}

.dub-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  animation: slideInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.dub-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.dub-cover {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-bottom: 1px solid var(--border-light);
}

.dub-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.dub-site-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dub-site-logo {
  width: 18px;
  height: 18px;
  object-fit: contain;
  border-radius: 4px;
}

.dub-site-name {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.dub-title {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.4px;
  line-height: 1.3;
}

.dub-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Meta Grid inside Dub Card */
.dub-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 14px;
  background: var(--border-light);
  border-radius: var(--radius-md);
  margin: 6px 0;
}

.dub-meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dub-meta-item .label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

.dub-meta-item .value {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Dub Watch Button */
.btn {
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  text-align: center;
  width: 100%;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: transform var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

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

.btn-ghost {
  background: var(--border-light);
  color: var(--text-muted);
  cursor: not-allowed;
}

/* === SITE FOOTER === */
.site-footer {
  text-align: center;
  padding: 32px 24px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-light);
  margin-top: auto;
  line-height: 1.8;
}

.site-footer span {
  color: #ef4444;
  display: inline-block;
  animation: heartBeat 1.2s infinite;
}

@keyframes heartBeat {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}

/* === TOAST NOTIFICATIONS === */
.toast-stack {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
  max-width: 320px;
  width: calc(100% - 48px);
}

.toast {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  pointer-events: auto;
  animation: toastIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  display: flex;
  align-items: center;
  border-left: 4px solid var(--accent);
}

.toast.success {
  border-left-color: #10b981;
}

.toast.error {
  border-left-color: #ef4444;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* === PLACEHOLDERS === */
.placeholder-note {
  text-align: center;
  color: var(--text-secondary);
  padding: 30px;
  font-weight: 500;
}

/* === RESPONSIVE MEDIA QUERIES === */
@media (min-width: 600px) {
  .dub-card {
    flex-direction: row;
    height: 280px;
  }
  
  .dub-cover {
    width: 200px;
    height: 100%;
    border-bottom: none;
    border-right: 1px solid var(--border-light);
  }
  
  .dub-body {
    flex-grow: 1;
    padding: 24px;
    justify-content: center;
  }
  
  .dub-meta-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .btn {
    width: auto;
    align-self: flex-start;
  }
}