/* ================================================================
   Storyboli — White × Orange Premium Theme
   Design system: tokens → base → components → motion → utilities
   ================================================================ */

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

/* ── Root Variables ── */
:root {
  --color-bg:          #ffffff;
  --color-bg-card:     #fafafa;
  --color-bg-elevated: #f5f5f5;
  --color-border:      #e5e7eb;
  --color-orange:      #f97316;
  --color-orange-dim:  #ea6c00;
  --color-orange-lite: #fb923c;
  --color-orange-glow: rgba(249, 115, 22, 0.12);
  --color-text:        #1f2937;
  --color-text-muted:  #6b7280;
  --color-heading:     #111827;
  --color-white:       #ffffff;
  --font-latin:        'Inter', sans-serif;
  --font-bengali:      'Hind Siliguri', sans-serif;
  --radius-lg:         1rem;
  --radius-xl:         1.5rem;

  /* Motion tokens */
  --ease-out:          cubic-bezier(0.22, 1, 0.36, 1);      /* expo-out: snappy, premium */
  --ease-spring:       cubic-bezier(0.34, 1.56, 0.64, 1);   /* slight overshoot */
  --ease-smooth:       cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast:          0.18s;
  --dur-base:          0.3s;
  --dur-slow:          0.6s;
  --transition:        all var(--dur-base) var(--ease-out);

  /* Layered shadow scale */
  --shadow-sm:  0 1px 2px rgba(17, 24, 39, 0.05), 0 1px 4px rgba(17, 24, 39, 0.04);
  --shadow-md:  0 2px 4px rgba(17, 24, 39, 0.04), 0 6px 16px rgba(17, 24, 39, 0.07);
  --shadow-lg:  0 4px 8px rgba(17, 24, 39, 0.05), 0 16px 40px rgba(17, 24, 39, 0.10);
  --shadow-orange: 0 8px 40px var(--color-orange-glow), 0 0 0 1px rgba(249, 115, 22, 0.18);

  /* Legacy purple aliases — now map to orange */
  --color-purple:      var(--color-orange);
  --color-purple-dim:  var(--color-orange-dim);
  --color-purple-lite: var(--color-orange-lite);
  --color-purple-glow: var(--color-orange-glow);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-bengali), var(--font-latin);
  background-color: var(--color-bg);
  background-image:
    radial-gradient(ellipse 90% 60% at 50% -10%, rgba(249, 115, 22, 0.06) 0%, transparent 65%),
    radial-gradient(ellipse 50% 40% at 90% 90%,  rgba(249, 115, 22, 0.04) 0%, transparent 60%);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-bengali), var(--font-latin);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-heading);
}

a { color: var(--color-orange); text-decoration: none; transition: color var(--dur-fast) var(--ease-smooth); }
a:hover { color: var(--color-orange-dim); }

/* ── Utility Classes ── */
.text-muted   { color: var(--color-text-muted); }
.text-orange  { color: var(--color-orange); }
.bg-card      { background: var(--color-bg-card); }
.bg-elevated  { background: var(--color-bg-elevated); }

/* ── Gradient Text (subtle animated sheen) ── */
.gradient-text {
  background: linear-gradient(120deg, #ea6c00 0%, #f97316 35%, #fdba74 50%, #f97316 65%, #ea6c00 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 6s ease-in-out infinite;
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% center; }
  50%      { background-position: 100% center; }
}

/* ── Buttons ── */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 0.625rem;
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: transform var(--dur-base) var(--ease-spring),
              box-shadow var(--dur-base) var(--ease-out),
              background-color var(--dur-fast) var(--ease-smooth),
              border-color var(--dur-fast) var(--ease-smooth),
              color var(--dur-fast) var(--ease-smooth);
  border: none;
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: translateY(0) scale(0.97); }
.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.35);
}

/* Shine sweep on hover (primary only) */
.btn-primary::after {
  content: '';
  position: absolute;
  top: 0; left: -80%;
  width: 50%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255,255,255,0.35), transparent);
  transform: skewX(-20deg);
  transition: left 0.55s var(--ease-out);
  pointer-events: none;
}
.btn-primary:hover::after { left: 130%; }

.btn-primary {
  background: linear-gradient(135deg, #ea6c00, #f97316);
  color: #fff;
  box-shadow: 0 4px 22px rgba(249, 115, 22, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(249, 115, 22, 0.5);
  color: #fff;
  background: linear-gradient(135deg, #dc5f00, #ea6c00);
}

.btn-outline {
  background: transparent;
  color: var(--color-orange);
  border: 1.5px solid var(--color-orange);
}
.btn-outline:hover {
  background: var(--color-orange-glow);
  color: var(--color-orange-dim);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(249, 115, 22, 0.15);
}

.btn-ghost {
  background: var(--color-bg-elevated);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-border);
  color: var(--color-heading);
  transform: translateY(-1px);
}

.btn-secondary {
  background: #ffffff;
  color: var(--color-orange-dim);
  border: 1.5px solid rgba(249, 115, 22, 0.35);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover {
  border-color: var(--color-orange);
  background: rgba(249, 115, 22, 0.05);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Ripple micro-interaction (injected by ui.js) */
.btn .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  transform: scale(0);
  animation: ripple 0.55s var(--ease-out) forwards;
  pointer-events: none;
}
.btn-outline .ripple, .btn-ghost .ripple, .btn-secondary .ripple {
  background: rgba(249, 115, 22, 0.18);
}
@keyframes ripple {
  to { transform: scale(3.5); opacity: 0; }
}

/* ── Cards ── */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-sm);
}
.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(249,115,22,0.03) 0%, transparent 60%);
  pointer-events: none;
}
.card:hover {
  border-color: var(--color-orange);
  box-shadow: var(--shadow-orange), var(--shadow-lg);
  transform: translateY(-4px);
}

/* ── Navbar ── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(229, 231, 235, 0.8);
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.05);
  transition: box-shadow var(--dur-base) var(--ease-smooth),
              border-color var(--dur-base) var(--ease-smooth);
}
.navbar.nav-scrolled {
  border-bottom-color: rgba(249, 115, 22, 0.15);
  box-shadow: 0 2px 20px rgba(17, 24, 39, 0.08);
}

/* Animated underline on nav links */
.nav-link {
  position: relative;
  padding-bottom: 2px;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 100%; height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--color-orange), var(--color-orange-lite));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease-out);
}
.nav-link:hover::after { transform: scaleX(1); }

/* Cart badge pop-in */
.cart-badge { animation: badgePop 0.45s var(--ease-spring) both; }
@keyframes badgePop {
  0%   { transform: scale(0); }
  100% { transform: scale(1); }
}

/* Mobile menu slide/fade */
.mobile-menu {
  display: block;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transform: translateY(-8px);
  transition: max-height 0.4s var(--ease-out),
              opacity 0.3s var(--ease-smooth),
              transform 0.35s var(--ease-out),
              padding 0.4s var(--ease-out);
  border-top-width: 0 !important;
}
.mobile-menu.open {
  max-height: 480px;
  opacity: 1;
  transform: translateY(0);
  padding-top: 1rem;
  padding-bottom: 1rem;
  border-top-width: 1px !important;
}
@media (min-width: 768px) {
  .mobile-menu { display: none; }
}

/* ── Hero Section (floating gradient orbs, pure CSS) ── */
.hero-gradient {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(249, 115, 22, 0.08) 0%, transparent 65%),
    radial-gradient(ellipse 60% 40% at 80% 80%,  rgba(249, 115, 22, 0.05) 0%, transparent 55%),
    var(--color-bg);
}
.hero-gradient::before,
.hero-gradient::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
}
.hero-gradient::before {
  width: 340px; height: 340px;
  top: -80px; right: -60px;
  background: radial-gradient(circle, rgba(249,115,22,0.14), transparent 70%);
  animation: orbFloat 11s ease-in-out infinite;
}
.hero-gradient::after {
  width: 280px; height: 280px;
  bottom: -60px; left: -70px;
  background: radial-gradient(circle, rgba(251,146,60,0.12), transparent 70%);
  animation: orbFloat 14s ease-in-out infinite reverse;
}
.hero-gradient > * { position: relative; z-index: 1; }
@keyframes orbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(-24px, 20px) scale(1.06); }
  66%      { transform: translate(16px, -14px) scale(0.96); }
}

/* ── Glow Badge ── */
.badge-glow {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.35rem 1rem;
  border-radius: 9999px;
  background: rgba(249, 115, 22, 0.08);
  border: 1px solid rgba(249, 115, 22, 0.3);
  color: var(--color-orange-dim);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

/* ── Section Dividers ── */
.section-divider {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(249,115,22,0.25), transparent);
  margin: 0;
}

/* ── Service Card Icon ── */
.service-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  background: rgba(249, 115, 22, 0.08);
  border: 1px solid rgba(249, 115, 22, 0.22);
  flex-shrink: 0;
  transition: transform var(--dur-base) var(--ease-spring),
              box-shadow var(--dur-base) var(--ease-out);
}
.card:hover .service-icon {
  transform: scale(1.08) rotate(-4deg);
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.2);
}

/* ── Newsletter Input ── */
.newsletter-input {
  flex: 1;
  background: #ffffff;
  border: 1.5px solid var(--color-border);
  border-radius: 0.625rem;
  padding: 0.75rem 1.125rem;
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.9375rem;
  outline: none;
  transition: border-color var(--dur-fast) var(--ease-smooth),
              box-shadow var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out);
  width: 100%;
}
.newsletter-input:focus {
  border-color: var(--color-orange);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15), var(--shadow-sm);
  transform: translateY(-1px);
}
.newsletter-input::placeholder { color: var(--color-text-muted); }

/* ── Price Badge ── */
.price-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-orange);
}

/* ── Scroll Reveal (driven by ui.js IntersectionObserver) ── */
.reveal-init {
  opacity: 0;
  transform: translateY(26px);
}
.reveal-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
  transition-delay: var(--reveal-delay, 0s);
}

/* ── Entrance Animations (legacy, still used on heroes) ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(249,115,22,0.2); }
  50%       { box-shadow: 0 0 45px rgba(249,115,22,0.45); }
}
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-6px); }
}

.animate-fade-up { animation: fadeInUp 0.6s var(--ease-out) both; }
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }
.animate-float   { animation: float 4s ease-in-out infinite; }

/* ── Skeleton shimmer (loading placeholders) ── */
.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--color-bg-elevated);
  border-radius: 0.5rem;
}
.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.7), transparent);
  animation: shimmer 1.4s infinite;
}
@keyframes shimmer {
  100% { transform: translateX(100%); }
}

/* ── Toast flash messages ── */
#toast-container {
  position: fixed;
  top: 5rem;
  right: 1rem;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: min(92vw, 24rem);
}
.toast {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  padding: 0.875rem 1rem;
  border-radius: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.5;
  background: #ffffff;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-orange);
  animation: toastIn 0.45s var(--ease-spring) both;
  position: relative;
  overflow: hidden;
}
.toast-success { border-left-color: #16a34a; color: #14532d; }
.toast-error   { border-left-color: #dc2626; color: #7f1d1d; }
.toast.toast-out {
  animation: toastOut 0.35s var(--ease-smooth) forwards;
}
.toast-close {
  margin-left: auto;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1;
  padding: 0.125rem;
  flex-shrink: 0;
}
.toast-progress {
  position: absolute;
  left: 0; bottom: 0;
  height: 3px;
  width: 100%;
  transform-origin: left;
  background: currentColor;
  opacity: 0.25;
  animation: toastProgress 5s linear forwards;
}
@keyframes toastIn {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes toastOut {
  to { opacity: 0; transform: translateX(40px); }
}
@keyframes toastProgress {
  to { transform: scaleX(0); }
}

/* ── Back to top button (injected by ui.js) ── */
#back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 150;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 9999px;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, #ea6c00, #f97316);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 18px rgba(249, 115, 22, 0.4);
  opacity: 0;
  transform: translateY(16px) scale(0.9);
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-spring),
              box-shadow var(--dur-base) var(--ease-out);
}
#back-to-top.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
#back-to-top:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 26px rgba(249, 115, 22, 0.55);
}

/* ── Scroll progress bar (injected by ui.js) ── */
#scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 100%;
  z-index: 300;
  background: linear-gradient(90deg, #ea6c00, #fb923c);
  transform-origin: left;
  transform: scaleX(0);
  pointer-events: none;
}

/* ── Scrollbar ── */
::-webkit-scrollbar        { width: 6px; }
::-webkit-scrollbar-track  { background: var(--color-bg-elevated); }
::-webkit-scrollbar-thumb  { background: rgba(249,115,22,0.35); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-orange); }

/* ── Responsive helpers ── */
@media (max-width: 768px) {
  .btn { padding: 0.65rem 1.25rem; font-size: 0.875rem; }
  #toast-container { top: 4.5rem; right: 0.75rem; left: 0.75rem; max-width: none; }
}

/* ── Orange shimmer on focused inputs ── */
input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: none;
  border-color: var(--color-orange) !important;
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.18) !important;
}

/* ── Selection ── */
::selection {
  background: rgba(249, 115, 22, 0.2);
  color: #111827;
}

/* ── Reduced motion: honor user preference ── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal-init { opacity: 1; transform: none; }
}