@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,400&display=swap');

@tailwind base;
@tailwind components;
@tailwind utilities;

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
:root {
  /* ── Brand Colors (Chandra & Sons Pharma) ── */
  --primary:       #0D7B8A;   /* Deep teal */
  --primary-dark:  #0A5C67;   /* Darker teal for hover */
  --primary-light: #E6F4F6;   /* Teal tint for backgrounds */
  --accent:        #F4A922;   /* Amber — CTAs, highlights */
  --accent-dark:   #C47E0A;   /* Darker amber for hover */
  --success:       #27AE60;   /* Green */
  --dark:          #1A2332;   /* Near-black navy */
  --text:          #1A2332;
  --text-muted:    #5A6A7A;
  --bg:            #F5F7FA;
  --border:        #E2E8F0;
  --white:         #FFFFFF;

  --shadow-xs:    0 1px 4px rgba(13,123,138,0.05);
  --shadow-sm:    0 2px 12px rgba(13,123,138,0.08);
  --shadow-md:    0 6px 28px rgba(13,123,138,0.12);
  --shadow-lg:    0 12px 48px rgba(13,123,138,0.16);
  --shadow-glow:  0 0 60px rgba(13,123,138,0.25);
  --shadow-btn:   0 4px 18px rgba(13,123,138,0.35);
  --shadow-accent:0 6px 24px rgba(244,169,34,0.38);

  --r-sm:  8px;
  --r-md:  14px;
  --r-lg:  20px;
  --r-xl:  28px;
  --r-2xl: 40px;
}

/* ============================================================
   BASE
   ============================================================ */
@layer base {
  html { scroll-behavior: smooth; }

  body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.15;
    color: var(--dark);
    letter-spacing: -0.025em;
  }

  ::selection { background: var(--primary); color: white; }

  ::-webkit-scrollbar { width: 5px; }
  ::-webkit-scrollbar-track { background: transparent; }
  ::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 99px; }
}

/* ============================================================
   COMPONENTS
   ============================================================ */
@layer components {

  /* ─── Buttons ─── */
  .btn {
    @apply inline-flex items-center justify-center gap-2 font-semibold rounded-xl cursor-pointer select-none;
    padding: 0.8125rem 1.875rem;
    font-size: 0.9375rem;
    letter-spacing: -0.01em;
    transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
  }

  .btn-primary {
    @apply btn text-white;
    background: var(--primary);
    box-shadow: var(--shadow-btn);
  }
  .btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 8px 28px rgba(13,123,138,0.45);
    transform: translateY(-2px);
  }

  .btn-accent {
    @apply btn;
    background: var(--accent);
    color: #1A2332;
    box-shadow: var(--shadow-accent);
  }
  .btn-accent:hover {
    background: var(--accent-dark);
    color: #fff;
    box-shadow: 0 10px 32px rgba(244,169,34,0.50);
    transform: translateY(-2px);
  }

  .btn-outline {
    @apply btn border-2 bg-transparent;
    border-color: var(--primary);
    color: var(--primary);
  }
  .btn-outline:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-btn);
  }

  .btn-outline-white {
    @apply btn border-2 bg-transparent text-white;
    border-color: rgba(255,255,255,0.55);
  }
  .btn-outline-white:hover {
    background: white;
    color: var(--primary);
    border-color: white;
    transform: translateY(-2px);
  }

  /* ─── Cards ─── */
  .card {
    background: var(--white);
    border-radius: var(--r-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
  }
  .card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
    border-color: rgba(13,123,138,0.22);
  }

  .card-glass {
    background: rgba(255,255,255,0.82);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-radius: var(--r-lg);
    border: 1px solid rgba(255,255,255,0.65);
    box-shadow: var(--shadow-md);
  }

  .card-dark {
    background: rgba(11,31,43,0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--r-lg);
    border: 1px solid rgba(255,255,255,0.10);
    box-shadow: var(--shadow-lg);
  }

  /* ─── Badges ─── */
  .badge {
    @apply inline-flex items-center gap-1.5 font-semibold rounded-full;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.3rem 0.85rem;
  }
  .badge-primary { @apply badge; background: var(--primary-light); color: var(--primary); }
  .badge-accent   { @apply badge; background: #FEF3CD; color: var(--accent-dark); }
  .badge-white    { @apply badge text-white; background: rgba(255,255,255,0.18); }
  .badge-dark     { @apply badge text-white; background: var(--dark); }

  /* ─── Section Typography ─── */
  .section-eyebrow {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 0.75rem;
  }

  .section-title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    color: var(--dark);
  }

  .section-subtitle {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--text-muted);
    margin-top: 1rem;
  }

  /* ─── Divider accent ─── */
  .accent-line {
    display: block;
    width: 44px;
    height: 4px;
    border-radius: 99px;
    background: var(--accent);
    margin-top: 1rem;
  }

  /* ─── Nav Link ─── */
  .nav-link {
    position: relative;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.2s;
    padding-bottom: 2px;
  }
  .nav-link::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 99px;
    transition: width 0.3s ease;
  }
  .nav-link:hover        { color: var(--primary); }
  .nav-link:hover::after { width: 100%; }
  .nav-link.active       { color: var(--primary); }
  .nav-link.active::after{ width: 100%; }

  /* ─── Form Inputs ─── */
  .form-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.375rem;
    letter-spacing: -0.01em;
  }

  .form-input {
    width: 100%;
    border-radius: var(--r-md);
    border: 1.5px solid var(--border);
    background: var(--white);
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    font-family: 'Inter', sans-serif;
    color: var(--text);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
    appearance: none;
  }
  .form-input::placeholder { color: var(--text-muted); font-weight: 400; }
  .form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(13,123,138,0.12);
  }

  /* ─── Gradient Text ─── */
  .gradient-text {
    background: linear-gradient(135deg, var(--primary), #22C55E 80%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  /* ─── Icon Box ─── */
  .icon-box {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: var(--r-md);
    background: var(--primary-light);
    color: var(--primary);
    flex-shrink: 0;
    transition: background 0.2s, color 0.2s;
  }

  /* ─── Floating Action Buttons ─── */
  /* WhatsApp pulse ring */
  .fab-wa-pulse {
    position: relative;
  }
  .fab-wa-pulse::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: #25D366;
    animation: wa-ping 2.2s ease-out infinite;
    z-index: -1;
  }
  /* Diary FAB pulse ring */
  .fab-diary {
    position: relative;
  }
  .fab-diary::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: var(--primary);
    animation: wa-ping 3s ease-out infinite;
    z-index: -1;
  }
}

/* ============================================================
   ANIMATIONS & KEYFRAMES
   ============================================================ */
@keyframes wa-ping {
  0%   { transform: scale(1);   opacity: 0.55; }
  100% { transform: scale(1.9); opacity: 0; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  45%       { transform: translateY(-14px); }
  65%       { transform: translateY(-8px); }
}

@keyframes floatReverse {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  45%       { transform: translateY(10px) rotate(3deg); }
}

@keyframes orbitSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes orbitSpinReverse {
  from { transform: rotate(0deg); }
  to   { transform: rotate(-360deg); }
}

@keyframes pillBounce {
  0%, 100% { transform: translateY(0) rotate(-12deg); }
  50%       { transform: translateY(-18px) rotate(-12deg); }
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50%       { opacity: 0.6; transform: scale(1.08); }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

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

/* Utility animation classes */
.animate-fade-up   { animation: fadeUp 0.65s cubic-bezier(0.22,1,0.36,1) both; }
.animate-fade-up-1 { animation: fadeUp 0.65s 0.10s cubic-bezier(0.22,1,0.36,1) both; }
.animate-fade-up-2 { animation: fadeUp 0.65s 0.20s cubic-bezier(0.22,1,0.36,1) both; }
.animate-fade-up-3 { animation: fadeUp 0.65s 0.30s cubic-bezier(0.22,1,0.36,1) both; }
.animate-fade-up-4 { animation: fadeUp 0.65s 0.42s cubic-bezier(0.22,1,0.36,1) both; }
.animate-fade-up-5 { animation: fadeUp 0.65s 0.54s cubic-bezier(0.22,1,0.36,1) both; }

.animate-float        { animation: float 5s ease-in-out infinite; }
.animate-float-slow   { animation: float 7s ease-in-out infinite; }
.animate-float-delay  { animation: float 5s 1.5s ease-in-out infinite; }
.animate-float-rev    { animation: floatReverse 6s ease-in-out infinite; }

/* ============================================================
   BRAND CAROUSEL
   ============================================================ */
.brand-carousel {
  overflow: hidden;
  position: relative;
  padding: 0.5rem 0;
}
.brand-carousel::before,
.brand-carousel::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 100px;
  z-index: 2;
  pointer-events: none;
}
.brand-carousel::before { left:  0; background: linear-gradient(to right, white, transparent); }
.brand-carousel::after  { right: 0; background: linear-gradient(to left,  white, transparent); }

.brand-track {
  display: flex;
  gap: 1.25rem;
  width: max-content;
  animation: marquee 32s linear infinite;
}
.brand-track:hover { animation-play-state: paused; }

/* ============================================================
   HERO
   ============================================================ */
.hero-gradient {
  background: linear-gradient(130deg, #05202C 0%, #0D7B8A 55%, #0B6170 100%);
}

.hero-overlay {
  background: linear-gradient(
    110deg,
    rgba(5,32,44,0.95) 0%,
    rgba(13,94,107,0.80) 45%,
    rgba(13,123,138,0.35) 100%
  );
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.65s cubic-bezier(0.22,1,0.36,1), transform 0.65s cubic-bezier(0.22,1,0.36,1);
}
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.10s; }
.reveal-delay-2 { transition-delay: 0.20s; }
.reveal-delay-3 { transition-delay: 0.30s; }

/* ============================================================
   FAQ ACCORDION
   ============================================================ */
.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.38s cubic-bezier(0.22,1,0.36,1), padding 0.2s;
}
.faq-content.open { max-height: 600px; }

/* ============================================================
   MISC
   ============================================================ */
.text-balance { text-wrap: balance; }
.counter-number { font-variant-numeric: tabular-nums; }

.ring-teal {
  box-shadow: 0 0 0 4px rgba(13,123,138,0.15);
}

/* ============================================================
   RESPONSIVE UTILITIES
   ============================================================ */

/* Prevent horizontal overflow globally */
html, body { max-width: 100vw; overflow-x: hidden; }

/* Mobile-specific adjustments */
@media (max-width: 640px) {
  /* Section padding */
  section { padding-top: 3.5rem !important; padding-bottom: 3.5rem !important; }

  /* Hero section on mobile */
  .section-title { font-size: clamp(1.5rem, 7vw, 2rem) !important; }
  .section-subtitle { font-size: 0.9375rem !important; }

  /* Buttons on mobile */
  .btn { padding: 0.75rem 1.375rem !important; font-size: 0.875rem !important; }

  /* Card padding reduction */
  .card { border-radius: var(--r-md) !important; }

  /* Brand carousel */
  .brand-carousel::before, .brand-carousel::after { width: 40px !important; }

  /* Form inputs */
  .form-input { padding: 0.6875rem 0.875rem !important; font-size: 0.875rem !important; }
}

/* Tablet */
@media (max-width: 768px) {
  .section-title { font-size: clamp(1.625rem, 5vw, 2.25rem) !important; }
}

/* Fix: floating stat cards don't overflow on small screens */
@media (max-width: 1024px) {
  .absolute.-bottom-5.-right-5 {
    position: static !important;
    margin-top: 1rem !important;
    display: inline-block !important;
  }
}

/* Enquiry form on mobile */
@media (max-width: 640px) {
  .fi-simple-main { padding: 1rem !important; }
}

/* Fix stats section grid on very small screens */
@media (max-width: 400px) {
  .grid.grid-cols-2 { grid-template-columns: 1fr !important; }
}