/* ========================================
   Rajat Verma — Shared Design System
   Tokens, typography, header, footer
   ======================================== */

/* ----- Fonts ----- */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Libre+Baskerville:wght@400;700&display=swap');

/* ----- Design Tokens ----- */
:root {
  --brand: #0b8a6e;
  --brand-2: #1b5bd6;
  --brand-gradient: linear-gradient(110deg, var(--brand), #117e67);
  --ink: #172037;
  --ink-soft: #43515d;
  --muted: #5a6478;
  --surface: #ffffff;
  --bg: #f5f7fb;
  --line: rgba(23, 32, 55, 0.12);
  --ring: rgba(27, 91, 214, 0.2);
  --shadow-soft: 0 14px 30px rgba(16, 28, 52, 0.1);
  --shadow-card: 0 20px 45px rgba(14, 27, 48, 0.14);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --font-body: 'Manrope', 'Segoe UI', sans-serif;
  --font-heading: 'Libre Baskerville', Georgia, serif;
  --font-mono: 'SFMono-Regular', Menlo, Monaco, Consolas, 'Liberation Mono', monospace;
}

/* ----- Reset ----- */
* {
  box-sizing: border-box;
}

/* ----- Shared Header ----- */
.site-header {
  padding: 22px 14px 10px;
  width: 100%;
}

.site-header .header-shell {
  max-width: 1020px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, #0f2e64, #165067 46%, #0b8a6e);
  color: #f4f9ff;
  box-shadow: var(--shadow-card);
  padding: 18px;
}

.site-header .header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.site-header .site-name {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2vw, 1.4rem);
}

.site-header .header-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.site-header .header-nav a {
  color: #eff5ff;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.84rem;
  padding: 7px 11px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.16);
  transition:
    transform 0.22s ease,
    background 0.22s ease;
}

.site-header .header-nav a:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-1px);
}

/* ----- Simple Fixed Header (alternative for tool pages) ----- */
.simple-header,
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: linear-gradient(110deg, var(--brand), #117e67);
  text-align: center;
  padding: 12px 16px;
}

.simple-header a,
.header a {
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  margin: 0 10px;
}

.simple-header a:hover,
.header a:hover {
  text-decoration: underline;
}

/* ----- Footer ----- */
.site-footer {
  color: #5f6b7b;
  padding: 8px 0 24px;
  text-align: center;
  width: 100%;
  font-size: 0.88rem;
}

/* ----- Utility Cards / Panels ----- */
.panel {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  padding: 18px;
}

.panel-shadow {
  box-shadow: var(--shadow-card);
}

/* ----- Buttons ----- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-weight: 700;
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 0.88rem;
  color: #fff;
  background: var(--brand-gradient);
  border: none;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  font-weight: 700;
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 0.88rem;
  color: #0f2e64;
  background: #edf3ff;
  border: 1px solid rgba(15, 46, 100, 0.16);
  cursor: pointer;
  transition: transform 0.2s ease;
}

.btn-secondary:hover {
  transform: translateY(-2px);
}

/* ----- Form Inputs ----- */
input,
select,
textarea {
  font-family: var(--font-body);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--brand-2);
  box-shadow: 0 0 0 4px var(--ring);
}

/* ----- Animations ----- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ----- Responsive ----- */
@media (max-width: 760px) {
  .site-header .header-top {
    align-items: flex-start;
  }
  .site-header .header-nav a {
    display: inline-block;
  }
  .simple-header a {
    display: inline-block;
    margin: 4px 6px;
  }
}