/* ===== Base ===== */
html {
  scroll-behavior: smooth;
}

/* ===== Grain overlay ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='a'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23a)'/%3E%3C/svg%3E");
}

/* ===== Gradient text ===== */
.text-gradient {
  background: linear-gradient(135deg, #34d399 0%, #2dd4bf 50%, #22d3ee 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== Hero glows ===== */
.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 1100px;
  height: 700px;
  background: radial-gradient(ellipse at center, rgba(52, 211, 153, 0.07) 0%, rgba(52, 211, 153, 0.02) 40%, transparent 65%);
  pointer-events: none;
}

.hero-glow-2 {
  position: absolute;
  top: 15%;
  right: -300px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

/* ===== App preview frame ===== */
.app-frame {
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.03),
    0 40px 80px -20px rgba(0, 0, 0, 0.55),
    0 0 100px rgba(52, 211, 153, 0.05);
  transform: perspective(2400px) rotateX(3deg);
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.app-frame:hover {
  transform: perspective(2400px) rotateX(0deg);
}

/* ===== Animations ===== */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

.anim-fade-up {
  opacity: 0;
  animation: fade-up 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.anim-d1 { animation-delay: 0.08s; }
.anim-d2 { animation-delay: 0.16s; }
.anim-d3 { animation-delay: 0.24s; }
.anim-d4 { animation-delay: 0.32s; }
.anim-d5 { animation-delay: 0.40s; }
.anim-d6 { animation-delay: 0.48s; }
.anim-d7 { animation-delay: 0.56s; }

/* Scroll-triggered reveals */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Feature card hover ===== */
.feature-card {
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}

.feature-card:hover {
  border-color: rgba(52, 211, 153, 0.12);
  box-shadow: 0 0 48px rgba(52, 211, 153, 0.04);
  transform: translateY(-2px);
}

/* ===== Phone mockup ===== */
.phone-frame {
  width: 320px;
  height: 580px;
  border-radius: 40px;
  border: 3px solid #27272a;
  background: #18181b;
  position: relative;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.05),
    0 40px 80px -20px rgba(0, 0, 0, 0.6),
    0 0 80px rgba(52, 211, 153, 0.04);
}

.phone-notch {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 26px;
  background: #18181b;
  border-radius: 0 0 18px 18px;
  z-index: 10;
}

.phone-screen {
  height: 100%;
  overflow-y: auto;
  scrollbar-width: none;
}

.phone-screen::-webkit-scrollbar {
  display: none;
}

/* Phone inbox items */
.inbox-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 16px;
  border-bottom: 1px solid #f1f5f9;
  cursor: default;
  transition: background-color 0.15s;
}

.inbox-item:hover {
  background-color: #f8fafc;
}

.inbox-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.inbox-content {
  flex: 1;
  min-width: 0;
}

/* ===== Demo toggle ===== */
.demo-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s;
  background: transparent;
  color: #71717a;
}

.demo-toggle.active {
  background: #34d399;
  color: #07070a;
  border-color: #34d399;
  font-weight: 600;
}

.demo-toggle:not(.active):hover {
  border-color: rgba(52, 211, 153, 0.3);
  color: #d4d4d8;
}

/* ===== Pricing highlight ===== */
.pricing-highlight {
  border: 1px solid rgba(52, 211, 153, 0.25) !important;
  box-shadow: 0 0 60px rgba(52, 211, 153, 0.06);
}

/* ===== Nav glass ===== */
.nav-glass {
  background: rgba(7, 7, 10, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

/* Mobile menu */
.mobile-menu {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.mobile-menu.open {
  max-height: 300px;
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .phone-frame {
    width: 280px;
    height: 500px;
    border-radius: 32px;
  }

  .app-frame {
    transform: none;
  }

  .app-frame:hover {
    transform: none;
  }
}