/* ═══════════════════════════════════════════════════════════════
   Latenly — Premium Design System (Dark Mode)
   Fonts: Outfit (Display) + Inter (UI)
   ═══════════════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800&display=swap');

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  /* Backgrounds */
  --bg-base:      #09090b;
  --bg-surface:   rgba(24, 24, 27, 0.6);
  --bg-elevated:  rgba(39, 39, 42, 0.5);
  --bg-hover:     rgba(63, 63, 70, 0.3);
  --bg-input:     rgba(24, 24, 27, 0.8);

  /* Borders */
  --border-subtle:  rgba(63, 63, 70, 0.4);
  --border-default: rgba(82, 82, 91, 0.5);
  --border-strong:  rgba(113, 113, 122, 0.5);
  --border-glow:    rgba(139, 92, 246, 0.3);

  /* Text */
  --text-primary:   #f4f4f5;
  --text-secondary: #a1a1aa;
  --text-tertiary:  #71717a;
  --text-inverse:   #09090b;

  /* Brand Colors */
  --brand-violet:     #8b5cf6;
  --brand-violet-dim: rgba(139, 92, 246, 0.15);
  --brand-pink:       #ec4899;
  --brand-pink-dim:   rgba(236, 72, 153, 0.15);
  --brand-gradient:   linear-gradient(135deg, #8b5cf6, #ec4899);
  --brand-gradient-r: linear-gradient(135deg, #ec4899, #8b5cf6);

  /* Semantic Colors */
  --color-success:     #10b981;
  --color-success-dim: rgba(16, 185, 129, 0.15);
  --color-warning:     #f59e0b;
  --color-warning-dim: rgba(245, 158, 11, 0.15);
  --color-danger:      #ef4444;
  --color-danger-dim:  rgba(239, 68, 68, 0.15);
  --color-info:        #3b82f6;
  --color-info-dim:    rgba(59, 130, 246, 0.15);

  /* Shadows */
  --shadow-sm:  0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md:  0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg:  0 8px 30px rgba(0, 0, 0, 0.5);
  --shadow-xl:  0 20px 50px rgba(0, 0, 0, 0.6);
  --shadow-glow-violet: 0 0 20px rgba(139, 92, 246, 0.35);
  --shadow-glow-pink:   0 0 20px rgba(236, 72, 153, 0.3);
  --shadow-glow-green:  0 0 20px rgba(16, 185, 129, 0.3);

  /* Radii */
  --radius-sm:   0.375rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-xl:   1rem;
  --radius-2xl:  1.5rem;
  --radius-full: 9999px;

  /* Typography */
  --font-display: 'Outfit', sans-serif;
  --font-ui:      'Inter', sans-serif;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
}

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

/* ── Ambient Background ────────────────────────────────────── */
.bg-ambient {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  overflow: hidden;
}

.bg-ambient::before {
  content: '';
  position: absolute;
  top: -30%;
  left: -15%;
  width: 55vw;
  height: 55vw;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  animation: ambient-float 20s ease-in-out infinite alternate;
}

.bg-ambient::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -15%;
  width: 55vw;
  height: 55vw;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: ambient-float 25s ease-in-out infinite alternate-reverse;
}

@keyframes ambient-float {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(30px, -20px) scale(1.05); }
}

/* Grain Overlay */
.grain-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
}

/* ── Typography ────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
h3 { font-size: clamp(1.125rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

a {
  color: var(--brand-violet);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--brand-pink);
}

.gradient-text {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-green {
  background: linear-gradient(135deg, #34d399, #10b981);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-secondary { color: var(--text-secondary); }
.text-center { text-align: center; }

/* ── Layout ────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-sm {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-xs {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Glassmorphism Panel ───────────────────────────────────── */
.glass-panel {
  background: var(--bg-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition-base);
}

.glass-panel:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-default);
}

.glass-panel-static {
  background: var(--bg-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

/* Glow Border Effect */
.glow-border {
  position: relative;
}

.glow-border::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--brand-violet), transparent 40%, var(--color-success));
  z-index: -1;
  opacity: 0.5;
  transition: opacity var(--transition-base);
}

.glow-border:hover::before {
  opacity: 0.75;
}

/* ── Buttons ───────────────────────────────────────────────── */
button {
  font-family: var(--font-ui);
  cursor: pointer;
  border: none;
  outline: none;
}

.btn-glow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--brand-gradient);
  color: white;
  border: none;
  padding: 0.75rem 2rem;
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-ui);
  cursor: pointer;
  box-shadow: var(--shadow-glow-violet);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px rgba(139, 92, 246, 0.5);
  text-decoration: none;
  color: white;
}

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

.btn-glow.large {
  padding: 1rem 3rem;
  font-size: 1.1rem;
}

.btn-glow-green {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #25D366, #128C7E);
  color: white;
  border: none;
  padding: 0.75rem 2rem;
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-ui);
  cursor: pointer;
  box-shadow: var(--shadow-glow-green);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  text-decoration: none;
}

.btn-glow-green:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px rgba(37, 211, 102, 0.45);
  text-decoration: none;
  color: white;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-default);
  padding: 0.75rem 2rem;
  border-radius: var(--radius-full);
  font-size: 1rem;
  font-weight: 500;
  font-family: var(--font-ui);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-outline:hover {
  border-color: var(--brand-violet);
  color: var(--brand-violet);
  background: var(--brand-violet-dim);
  text-decoration: none;
}

.btn-outline.large {
  padding: 1rem 2.5rem;
  font-size: 1.05rem;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--text-secondary);
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font-ui);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

/* ── Badges ────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.badge-violet {
  background: var(--brand-violet-dim);
  color: var(--brand-violet);
}

.badge-pink {
  background: var(--brand-pink-dim);
  color: var(--brand-pink);
}

.badge-success {
  background: var(--color-success-dim);
  color: var(--color-success);
}

.badge-warning {
  background: var(--color-warning-dim);
  color: var(--color-warning);
}

.badge-danger {
  background: var(--color-danger-dim);
  color: var(--color-danger);
}

.badge-info {
  background: var(--color-info-dim);
  color: var(--color-info);
}

/* ── Form Inputs ───────────────────────────────────────────── */
.input-field {
  width: 100%;
  background: var(--bg-input);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 0.875rem 1rem;
  font-size: 1rem;
  font-family: var(--font-ui);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.input-field::placeholder {
  color: var(--text-tertiary);
}

.input-field:focus {
  border-color: var(--brand-violet);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.input-field:hover:not(:focus) {
  border-color: var(--border-default);
}

.input-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.input-error {
  font-size: 0.8rem;
  color: var(--color-danger);
  margin-top: 0.4rem;
  display: none;
}

.input-error.visible {
  display: block;
}

/* ── Skeleton Loading ──────────────────────────────────────── */
.skeleton {
  background: linear-gradient(
    90deg,
    rgba(63, 63, 70, 0.3) 25%,
    rgba(82, 82, 91, 0.3) 50%,
    rgba(63, 63, 70, 0.3) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.8s ease-in-out infinite;
  border-radius: var(--radius-md);
}

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

/* ── Spinner ───────────────────────────────────────────────── */
.spinner {
  width: 48px;
  height: 48px;
  border: 3px solid rgba(139, 92, 246, 0.2);
  border-radius: 50%;
  border-top-color: var(--brand-violet);
  animation: spin 0.8s ease-in-out infinite;
  margin: 0 auto;
}

.spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

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

/* ── Toast Notifications ───────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-elevated);
  backdrop-filter: blur(16px);
  color: var(--text-primary);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  font-size: 0.875rem;
  box-shadow: var(--shadow-lg);
  animation: toast-slide-up 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
  transform: translateY(20px);
}

@keyframes toast-slide-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.toast.fade-out {
  animation: toast-fade-out 0.3s ease forwards;
}

@keyframes toast-fade-out {
  to {
    opacity: 0;
    transform: translateY(-10px);
  }
}

/* ── Animations ────────────────────────────────────────────── */
.slide-up-anim {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.slide-up-anim.visible {
  opacity: 1;
  transform: translateY(0);
}

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

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

@keyframes pulse-glow {
  0%, 100% { box-shadow: var(--shadow-glow-violet); }
  50%      { box-shadow: 0 0 35px rgba(139, 92, 246, 0.5); }
}

/* ── Nav Bar ───────────────────────────────────────────────── */
.nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 9, 11, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.nav-logo span {
  color: var(--brand-violet);
}

.nav-logo:hover {
  color: var(--text-primary);
  text-decoration: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-link {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-fast);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-md);
}

.nav-link:hover {
  color: var(--text-primary);
  text-decoration: none;
}

.nav-cta {
  background: var(--brand-gradient);
  color: white;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: var(--shadow-glow-violet);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 25px rgba(139, 92, 246, 0.4);
  text-decoration: none;
  color: white;
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-bar {
    padding: 0.85rem 1rem;
  }

  .nav-link {
    display: none;
  }
}

@media (max-width: 480px) {
  .btn-glow.large {
    padding: 0.85rem 2rem;
    font-size: 1rem;
  }

  .btn-outline.large {
    padding: 0.85rem 2rem;
    font-size: 1rem;
  }
}