/* ===========================
   Streamline Technology Inc.
   =========================== */

:root {
  --primary: #1a56db;
  --primary-dark: #1344b0;
  --accent: #06b6d4;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --mid: #334155;
  --light: #f1f5f9;
  --white: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.14);
  --radius: 10px;
  --radius-lg: 16px;
  --transition: 0.2s ease;
  --nav-height: 68px;
  --max-width: 1140px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  font-size: 1rem;
}

img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- Layout ---- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 80px 0; }
section:nth-of-type(even) { background: var(--light); }

/* ---- Nav ---- */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--dark);
  height: var(--nav-height);
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  color: #fff;
  flex-shrink: 0;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav-logo-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.01em;
}

.nav-logo-sub {
  font-size: 0.65rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 8px 14px;
  color: #cbd5e1;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(255,255,255,0.08);
  color: var(--white);
}

.nav-links a.active {
  color: var(--accent);
}

.nav-cta {
  background: var(--primary) !important;
  color: var(--white) !important;
  padding: 8px 18px !important;
  font-weight: 600 !important;
}

.nav-cta:hover {
  background: var(--primary-dark) !important;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---- Hero ---- */
.hero {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 60%, #162044 100%);
  color: var(--white);
  padding: 100px 0 90px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(6,182,212,0.12) 0%, transparent 65%);
  pointer-events: none;
}

.hero-content { position: relative; z-index: 1; max-width: 680px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(6,182,212,0.15);
  border: 1px solid rgba(6,182,212,0.35);
  color: var(--accent);
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 22px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero h1 span { color: var(--accent); }

.hero p {
  font-size: 1.1rem;
  color: #94a3b8;
  margin-bottom: 36px;
  max-width: 560px;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  line-height: 1;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26,86,219,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.25);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

.btn-accent {
  background: var(--accent);
  color: var(--dark);
}

.btn-accent:hover {
  background: #0891b2;
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--primary);
  text-decoration: none;
}

/* ---- Section Header ---- */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-label {
  display: inline-block;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.section-header p {
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* ---- Cards ---- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card-grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 18px;
  background: linear-gradient(135deg, rgba(26,86,219,0.1), rgba(6,182,212,0.1));
}

.card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 16px;
  color: var(--primary);
  font-size: 0.88rem;
  font-weight: 600;
}

.card-link:hover { gap: 8px; }

/* ---- Feature Row ---- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.feature-row.reverse { direction: rtl; }
.feature-row.reverse > * { direction: ltr; }

.feature-text h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.feature-text p {
  color: var(--text-muted);
  margin-bottom: 24px;
  font-size: 1rem;
  line-height: 1.7;
}

.feature-list {
  list-style: none;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text);
}

.feature-list li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  margin-top: 1px;
  flex-shrink: 0;
}

.feature-visual {
  background: linear-gradient(135deg, var(--dark), var(--dark-2));
  border-radius: var(--radius-lg);
  min-height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.feature-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 60% 40%, rgba(6,182,212,0.18) 0%, transparent 65%);
}

.feature-visual-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 32px;
}

.feature-visual-icon {
  font-size: 4rem;
  margin-bottom: 16px;
}

.feature-visual-text {
  color: #94a3b8;
  font-size: 0.9rem;
}

/* ---- Stats ---- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2px;
  background: var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 60px;
}

.stat {
  background: var(--white);
  padding: 36px 24px;
  text-align: center;
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.03em;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-top: 4px;
}

/* ---- CTA Banner ---- */
.cta-banner {
  background: linear-gradient(135deg, var(--primary), var(--dark-2) 80%);
  color: var(--white);
  text-align: center;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(6,182,212,0.2) 0%, transparent 60%);
}

.cta-banner > .container { position: relative; z-index: 1; }

.cta-banner h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 14px;
}

.cta-banner p {
  color: #94a3b8;
  margin-bottom: 32px;
  font-size: 1.05rem;
}

.cta-banner .btn-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---- Services List ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border-top: 4px solid transparent;
}

.service-card:hover {
  border-top-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.service-card .card-icon { background: linear-gradient(135deg, rgba(26,86,219,0.1), rgba(6,182,212,0.08)); }

.service-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 10px; }
.service-card p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.65; }

/* ---- Projects ---- */
.project-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}

.project-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.project-card-header {
  padding: 32px 32px 0;
  background: linear-gradient(135deg, var(--dark), var(--dark-2));
  min-height: 140px;
  display: flex;
  align-items: flex-end;
  position: relative;
  overflow: hidden;
}

.project-card-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 20%, rgba(6,182,212,0.2) 0%, transparent 60%);
}

.project-card-header-icon {
  font-size: 2.5rem;
  position: relative;
  z-index: 1;
  padding-bottom: 20px;
}

.project-card-body { padding: 24px 32px 32px; }

.project-tag {
  display: inline-block;
  background: rgba(26,86,219,0.08);
  color: var(--primary);
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.project-card-body h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
.project-card-body p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.65; margin-bottom: 20px; }

/* ---- Contact ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 48px;
  align-items: start;
}

.contact-info h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; }
.contact-info p { color: var(--text-muted); margin-bottom: 32px; }

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 22px;
}

.contact-item-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, rgba(26,86,219,0.1), rgba(6,182,212,0.1));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item-text strong { display: block; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 2px; text-transform: uppercase; letter-spacing: 0.05em; }
.contact-item-text span { font-size: 0.97rem; color: var(--text); }

.contact-form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 7px;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,86,219,0.12);
}

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

/* ---- Footer ---- */
footer {
  background: var(--dark);
  color: #94a3b8;
  padding: 60px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 0.92rem;
  line-height: 1.7;
  max-width: 280px;
  margin-top: 14px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a {
  color: #94a3b8;
  font-size: 0.92rem;
  text-decoration: none;
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
}

.footer-bottom a { color: var(--accent); }

/* ---- Page Hero (inner pages) ---- */
.page-hero {
  background: linear-gradient(135deg, var(--dark), var(--dark-2));
  color: var(--white);
  padding: 70px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 80%, rgba(6,182,212,0.12) 0%, transparent 60%);
}

.page-hero > .container { position: relative; z-index: 1; }

.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.page-hero h1 span { color: var(--accent); }

.page-hero p {
  color: #94a3b8;
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .feature-row { grid-template-columns: 1fr; gap: 36px; }
  .feature-row.reverse { direction: ltr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 640px) {
  section { padding: 56px 0; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: var(--nav-height); left: 0; right: 0; background: var(--dark-2); padding: 16px; gap: 4px; }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .stats-row { grid-template-columns: 1fr 1fr; }
}