/* File: samyam/css/main.css – Premium Design System */

@import url('https://fonts.googleapis.com/css2?family=Instrument+Sans:ital,wght@0,400..700;1,400..700&family=Manrope:wght@400;600;800&family=Noto+Serif+Devanagari&family=Noto+Serif+Tamil&family=JetBrains+Mono:wght@400;700&display=swap');

:root {
  /* Core Palette */
  --color-canvas: #F5F2EB;
  --color-saffron: #C26A2E;
  --color-saffron-light: #E89857;
  --color-saffron-dark: #9A5422;
  --color-indigo: #1B3B4F;
  --color-indigo-light: #2C5F7A;
  --color-mint: #A3D0B0;
  --color-mint-light: #C2E8D0;
  --color-mint-dark: #6DA37D;
  --color-text-primary: #2C281F;
  --color-text-secondary: #6B655A;
  --color-liquid-glass: rgba(210, 230, 215, 0.12);

  /* Gradients */
  --color-gradient-saffron: linear-gradient(135deg, #C26A2E 0%, #E89857 100%);
  --color-gradient-mint: linear-gradient(135deg, #6DA37D 0%, #A3D0B0 100%);
  --color-gradient-indigo: linear-gradient(135deg, #1B3B4F 0%, #2C5F7A 100%);
  --color-gradient-gold: linear-gradient(135deg, #D4AF37 0%, #F0D675 100%);

  /* Shadows */
  --shadow-card: 0 8px 32px rgba(27, 59, 79, 0.06);
  --shadow-card-hover: 0 16px 48px rgba(27, 59, 79, 0.12);
  --shadow-glow-saffron: 0 4px 20px rgba(194, 106, 46, 0.25);
  --shadow-glow-mint: 0 4px 20px rgba(163, 208, 176, 0.3);

  /* Typography */
  --font-headings: 'Manrope', sans-serif;
  --font-body: 'Instrument Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing & Radius */
  --spacing-grid: 12px;
  --border-radius-card: 24px;
  --border-radius-arch: 50% 50% 0 0 / 28px 28px 0 0;
  --border-radius-pill: 50px;
}

/* Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Selection */
::selection {
  background: rgba(194, 106, 46, 0.2);
  color: var(--color-indigo);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(27, 59, 79, 0.15);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(27, 59, 79, 0.3);
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-canvas);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headings);
  font-weight: 600;
  color: var(--color-indigo);
  letter-spacing: -0.3px;
}

a {
  color: var(--color-saffron);
  text-decoration: none;
  transition: opacity 0.2s ease, color 0.2s ease;
}
a:hover {
  opacity: 0.85;
}

/* ===== PREMIUM ARCH CARD ===== */
.arch-card {
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--border-radius-card);
  padding: 24px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-card);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.35s ease, border-color 0.3s ease;
  will-change: transform;
  position: relative;
  overflow: hidden;
}

.arch-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -75%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
  transform: skewX(-15deg);
  transition: left 0.6s ease;
  pointer-events: none;
}

.arch-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(194, 106, 46, 0.15);
}

.arch-card:hover::before {
  left: 125%;
}

.arch-header {
  border-radius: var(--border-radius-arch);
  overflow: hidden;
}

/* ===== GRID & LAYOUT ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

@media (max-width: 768px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .container {
    padding: 16px;
    padding-bottom: 90px;
  }
}

/* ===== PREMIUM BUTTONS ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-gradient-saffron);
  color: #ffffff;
  padding: 14px 32px;
  border-radius: var(--border-radius-pill);
  font-family: var(--font-headings);
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 16px rgba(194, 106, 46, 0.25);
  text-shadow: 0 1px 2px rgba(0,0,0,0.1);
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.5s ease;
}

.btn-primary:hover {
  transform: scale(1.03) translateY(-1px);
  box-shadow: var(--shadow-glow-saffron);
}

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

.btn-primary:active {
  transform: scale(0.97);
  box-shadow: 0 2px 8px rgba(194, 106, 46, 0.2);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.6);
  color: var(--color-indigo);
  padding: 12px 26px;
  border-radius: var(--border-radius-pill);
  font-family: var(--font-headings);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1.5px solid rgba(163, 208, 176, 0.5);
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.3s ease;
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  transform: scale(1.03);
  background: rgba(163, 208, 176, 0.15);
  border-color: var(--color-mint);
  box-shadow: var(--shadow-glow-mint);
}

.btn-secondary:active {
  transform: scale(0.97);
}

.btn-destructive {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(179, 38, 38, 0.04);
  color: #b32626;
  padding: 10px 20px;
  border-radius: var(--border-radius-pill);
  font-family: var(--font-headings);
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid rgba(179, 38, 38, 0.15);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-destructive:hover {
  background: rgba(179, 38, 38, 0.08);
  border-color: rgba(179, 38, 38, 0.3);
}

/* ===== PREMIUM HEADER ===== */
header.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  background: rgba(245, 242, 235, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 2px solid transparent;
  border-image: linear-gradient(90deg, var(--color-saffron), var(--color-mint), transparent) 1;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background 0.3s ease;
}

.app-logo {
  font-family: var(--font-headings);
  font-weight: 800;
  font-size: 26px;
  background: var(--color-gradient-indigo);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.app-logo-tagline {
  font-family: var(--font-body);
  font-size: 0.65rem;
  color: var(--color-text-secondary);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  opacity: 0.7;
  margin-top: -2px;
}

nav.app-nav {
  display: flex;
  gap: 8px;
}

nav.app-nav a {
  color: var(--color-text-secondary);
  font-family: var(--font-headings);
  font-weight: 600;
  font-size: 14px;
  padding: 8px 16px;
  border-radius: 12px;
  transition: all 0.2s ease;
}

nav.app-nav a:hover {
  background: rgba(27, 59, 79, 0.04);
  color: var(--color-indigo);
  opacity: 1;
}

nav.app-nav a.active {
  color: var(--color-saffron);
  background: rgba(194, 106, 46, 0.08);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-gradient-saffron);
  color: #fff;
  font-family: var(--font-headings);
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 2px 8px rgba(194, 106, 46, 0.2);
}

.user-avatar:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-glow-saffron);
}

/* ===== MOBILE BOTTOM NAV ===== */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(245, 242, 235, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(27, 59, 79, 0.08);
  padding: 6px 0 env(safe-area-inset-bottom, 6px);
  justify-content: space-around;
}

.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px 12px;
  color: var(--color-text-secondary);
  font-family: var(--font-headings);
  text-decoration: none;
  transition: color 0.2s ease;
  position: relative;
}

.bottom-nav-item.active {
  color: var(--color-saffron);
}

.bottom-nav-item.active::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: var(--color-gradient-saffron);
  border-radius: 2px;
}

.bottom-nav-icon {
  font-size: 1.3rem;
  line-height: 1;
}

.bottom-nav-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}

@media (max-width: 768px) {
  .mobile-bottom-nav {
    display: flex;
  }
  nav.app-nav {
    display: none;
  }
  header.app-header {
    padding: 10px 16px;
  }
  .app-logo {
    font-size: 22px;
  }
}

/* ===== PAGE TRANSITIONS ===== */
.page-enter {
  animation: pageSlideIn 0.4s ease-out;
}

@keyframes pageSlideIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== TOAST NOTIFICATIONS ===== */
#toast-container {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  pointer-events: none;
}

.toast-notification {
  pointer-events: auto;
  background: rgba(27, 59, 79, 0.92);
  color: #ffffff;
  padding: 12px 24px;
  border-radius: 14px;
  font-family: var(--font-headings);
  font-weight: 600;
  font-size: 0.9rem;
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  animation: toastIn 0.35s ease-out;
  transition: opacity 0.3s ease, transform 0.3s ease;
  max-width: 360px;
  text-align: center;
}

.toast-success {
  background: rgba(109, 163, 125, 0.92);
}

.toast-error {
  background: rgba(179, 38, 38, 0.9);
}

.toast-warning {
  background: rgba(194, 106, 46, 0.92);
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ===== SKELETON LOADING ===== */
.skeleton {
  background: linear-gradient(90deg, rgba(27,59,79,0.04) 25%, rgba(27,59,79,0.08) 50%, rgba(27,59,79,0.04) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: 8px;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===== SPLASH SCREEN ===== */
.splash-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: var(--color-canvas);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.splash-screen.fade-out {
  opacity: 0;
  visibility: hidden;
}

.splash-logo {
  font-family: var(--font-headings);
  font-weight: 800;
  font-size: 3rem;
  background: var(--color-gradient-indigo);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: splashPulse 1.2s ease-in-out infinite alternate;
}

.splash-tagline {
  font-family: var(--font-body);
  color: var(--color-text-secondary);
  font-size: 1rem;
  margin-top: 8px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

@keyframes splashPulse {
  from { opacity: 0.7; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1); }
}

/* ===== FEATURE PILLS ===== */
.feature-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--border-radius-pill);
  font-family: var(--font-headings);
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--color-indigo);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 8px rgba(27, 59, 79, 0.04);
}

/* ===== ACCESSIBILITY ===== */
*:focus-visible {
  outline: 3px solid var(--color-saffron);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0s !important;
    scroll-behavior: auto !important;
  }
}