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

/* ─── Design Tokens ─────────────────────────────────────── */
:root {
  --bg-deep: #ffffff;
  --bg-dark: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --border: #e2e8f0;
  --border-glow: #c7d2fe;

  --purple-1: #6366f1;
  --purple-2: #4f46e5;
  --purple-3: #4338ca;
  --cyan-1: #0891b2;
  --cyan-2: #0e7490;
  --pink-1: #ec4899;
  --green-1: #10b981;
  --yellow-1: #f59e0b;
  --orange-1: #f97316;

  --grad-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);
  --grad-warm: linear-gradient(135deg, #f97316 0%, #ec4899 50%, #8b5cf6 100%);
  --grad-card: none;
  --grad-text: linear-gradient(135deg, #6366f1, #8b5cf6, #6366f1);
  --grad-border: linear-gradient(135deg, rgba(99, 102, 241, 0.3), rgba(139, 92, 246, 0.15));

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --shadow-glow-purple: 0 4px 24px rgba(99, 102, 241, 0.12);
  --shadow-glow-cyan: 0 4px 24px rgba(8, 145, 178, 0.1);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.04);
  --shadow-elevated: 0 8px 32px rgba(0, 0, 0, 0.08);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── Scrollbar ──────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 5px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: #c7d2fe;
  border-radius: 99px;
}

::-webkit-scrollbar-thumb:hover {
  background: #a5b4fc;
}

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

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h3 {
  font-size: 1.25rem;
}

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

a {
  color: var(--purple-1);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--purple-2);
}

.grad-text {
  background: var(--grad-text);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 4s ease infinite;
}

/* ─── Inline SVG icons ───────────────────────────────────── */
.emoji-icon {
  width: 1.15em;
  height: 1.15em;
  vertical-align: -0.2em;
  display: inline-block;
  flex-shrink: 0;
}

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

.section {
  padding-block: 5rem;
  position: relative;
  z-index: 1;
}

.flex {
  display: flex;
}

.grid {
  display: grid;
}

.gap-1 {
  gap: 0.5rem;
}

.gap-2 {
  gap: 1rem;
}

.gap-3 {
  gap: 1.5rem;
}

.gap-4 {
  gap: 2rem;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.text-center {
  text-align: center;
}

/* ─── Cards ──────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  position: relative;
}

.card:hover {
  border-color: #c7d2fe;
  box-shadow: var(--shadow-elevated);
  transform: translateY(-4px);
}

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--grad-primary);
  color: #fff;
  box-shadow: 0 2px 12px rgba(99, 102, 241, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.35);
  transform: translateY(-2px) scale(1.02);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-outline:hover {
  background: #f1f5f9;
  border-color: #c7d2fe;
  color: var(--purple-1);
}

.btn-ghost {
  background: #f8fafc;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: #f1f5f9;
  color: var(--text-primary);
}

/* ─── Badges ─────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.badge-purple {
  background: #eef2ff;
  color: var(--purple-1);
  border: 1px solid #e0e7ff;
}

.badge-cyan {
  background: #ecfeff;
  color: var(--cyan-1);
  border: 1px solid #cffafe;
}

.badge-green {
  background: #ecfdf5;
  color: var(--green-1);
  border: 1px solid #d1fae5;
}

.badge-pink {
  background: #fdf2f8;
  color: var(--pink-1);
  border: 1px solid #fce7f3;
}

.badge-yellow {
  background: #fffbeb;
  color: #d97706;
  border: 1px solid #fef3c7;
}

/* ─── Form Elements ──────────────────────────────────────── */
.input,
.textarea,
.select {
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.95rem;
  padding: 0.8rem 1.1rem;
  outline: none;
  transition: var(--transition);
}

.input:focus,
.textarea:focus,
.select:focus {
  border-color: var(--purple-1);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.input::placeholder,
.textarea::placeholder {
  color: var(--text-muted);
}

.textarea {
  resize: vertical;
  min-height: 120px;
}

.select {
  cursor: pointer;
  appearance: none;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

/* ─── Toast ──────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  animation: slideIn 0.3s ease, fadeOut 0.4s ease 2.8s forwards;
  max-width: 340px;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  box-shadow: var(--shadow-elevated);
}

.toast.success {
  background: #ecfdf5;
  border: 1px solid #86efac;
  color: #166534;
}

.toast.error {
  background: #fef2f2;
  border: 1px solid #fca5a5;
  color: #991b1b;
}

.toast.info {
  background: #eef2ff;
  border: 1px solid #c7d2fe;
  color: #3730a3;
}

@keyframes slideIn {
  from {
    transform: translateX(120%);
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes fadeOut {
  to {
    opacity: 0;
    transform: translateX(120%);
  }
}

/* ─── Page header ────────────────────────────────────────── */
.page-header {
  padding: 7rem 0 3rem;
  text-align: center;
  position: relative;
  z-index: 1;
}

.page-header .eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--purple-1);
  margin-bottom: 1rem;
}

.page-header p {
  max-width: 600px;
  margin-inline: auto;
  margin-top: 0.75rem;
  font-size: 1.05rem;
}

/* ─── Section labels ─────────────────────────────────────── */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--purple-1);
  margin-bottom: 0.75rem;
}

/* ─── Dividers ───────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--border);
  border: none;
  margin-block: 1.5rem;
}

/* ─── Animations ─────────────────────────────────────────── */
@keyframes float {

  0%,
  100% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-20px);
  }
}

@keyframes glow-pulse {

  0%,
  100% {
    opacity: 0.7;
  }

  50% {
    opacity: 1;
  }
}

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

@keyframes blink {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

@keyframes gradient-shift {
  0% {
    background-position: 0% center;
  }

  50% {
    background-position: 200% center;
  }

  100% {
    background-position: 0% center;
  }
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }

  100% {
    transform: translateX(100%);
  }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.8);
    opacity: 1;
  }

  100% {
    transform: scale(2.2);
    opacity: 0;
  }
}

/* ─── Utility: fade-in on scroll ─────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width:768px) {
  .section {
    padding-block: 3rem;
  }

  .page-header {
    padding: 5rem 0 2rem;
  }
}