/* ===========================
   IM Services — style.css
   Thème bleu / tech pro
=========================== */

:root {
  --navy-900: #12161c;
  --navy-800: #1c222b;
  --navy-700: #272f39;
  --blue-600: #2c7aa6;
  --blue-500: #3793c3;
  --cyan-400: #6cc0e6;
  --white: #ffffff;
  --gray-50: #f4f7fb;
  --gray-100: #e9eef5;
  --gray-300: #c4cfdc;
  --gray-600: #5b6b7c;
  --gray-900: #101823;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 2px 10px rgba(7, 28, 51, 0.08);
  --shadow-md: 0 10px 30px rgba(7, 28, 51, 0.12);
  --shadow-lg: 0 20px 50px rgba(7, 28, 51, 0.18);

  --container: 1140px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 96px 0; }

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-500);
  background: rgba(55, 147, 195, 0.1);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-head { max-width: 640px; margin: 0 auto 56px; text-align: center; }

.section-head h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--navy-900);
  margin-bottom: 14px;
}

.section-head p { color: var(--gray-600); font-size: 1.05rem; }

.section-alt { background: var(--gray-50); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-400));
  color: var(--white);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--white);
}
.btn-outline:hover { background: rgba(255, 255, 255, 0.12); border-color: var(--white); }

.btn-outline-dark {
  background: transparent;
  border-color: var(--gray-300);
  color: var(--navy-900);
}
.btn-outline-dark:hover { border-color: var(--blue-500); color: var(--blue-500); }

.btn-block { width: 100%; }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(7, 28, 51, 0.0);
  transition: background 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
  padding: 22px 0;
}

.site-header.scrolled {
  background: rgba(7, 28, 51, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  padding: 14px 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--white);
}

.logo-mark {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--white);
  display: flex; align-items: center; justify-content: center;
  padding: 5px;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}
.logo-mark img { width: 100%; height: 100%; object-fit: contain; }

.logo-sub {
  display: block;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--gray-300);
  letter-spacing: 0.03em;
}

.main-nav ul { display: flex; gap: 32px; }

.main-nav a {
  color: var(--gray-100);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 6px 0;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--cyan-400);
  transition: width 0.25s ease;
}

.main-nav a:hover::after,
.main-nav a.active::after { width: 100%; }

.header-cta { display: flex; align-items: center; gap: 20px; }

.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--white);
  font-weight: 600;
  font-size: 0.95rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 26px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.25s ease;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 190px 0 120px;
  background: radial-gradient(circle at 15% 20%, rgba(108, 192, 230, 0.22), transparent 45%),
              radial-gradient(circle at 85% 0%, rgba(55, 147, 195, 0.35), transparent 50%),
              linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 55%, var(--navy-700) 100%);
  color: var(--white);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at top, black 0%, transparent 75%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--cyan-400);
}
.hero-badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 4px rgba(34,193,224,0.2);
}

.hero h1 {
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 22px;
}
.hero h1 span { color: var(--cyan-400); }

.hero p.lead {
  font-size: 1.15rem;
  color: var(--gray-300);
  max-width: 540px;
  margin-bottom: 34px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 44px; }

.hero-stats {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
}
.hero-stats div strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
}
.hero-stats div span {
  font-size: 0.85rem;
  color: var(--gray-300);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.mock-window {
  width: 100%;
  max-width: 420px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(6px);
}
.mock-bar {
  display: flex;
  gap: 6px;
  padding: 14px 16px;
  background: rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.mock-bar span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.25); }
.mock-body { padding: 26px; }
.mock-line { height: 10px; border-radius: 6px; background: rgba(255,255,255,0.14); margin-bottom: 12px; }
.mock-line.w-70 { width: 70%; }
.mock-line.w-50 { width: 50%; }
.mock-line.w-90 { width: 90%; }
.mock-card {
  margin-top: 18px;
  padding: 16px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(30,111,217,0.35), rgba(34,193,224,0.25));
  border: 1px solid rgba(255,255,255,0.12);
}
.mock-card .mock-line { background: rgba(255,255,255,0.4); }
.mock-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 18px; }
.mock-tile { height: 56px; border-radius: var(--radius-sm); background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.1); }

.floating-chip {
  position: absolute;
  background: var(--white);
  color: var(--navy-900);
  padding: 10px 16px;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}
.chip-1 { top: -16px; right: 10%; }
.chip-2 { bottom: -18px; left: -4%; }
.floating-chip .icon-ok {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: #1fbf75;
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem;
}

/* ===== Services ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

.service-icon {
  width: 54px; height: 54px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-400));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
  color: var(--white);
}
.service-icon svg { width: 26px; height: 26px; }

.service-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; color: var(--navy-900); }
.service-card p { color: var(--gray-600); font-size: 0.95rem; }

/* ===== Portfolio ===== */
.portfolio-note {
  text-align: center;
  max-width: 560px;
  margin: -24px auto 48px;
  color: var(--gray-600);
  font-size: 0.95rem;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.portfolio-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.portfolio-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

.portfolio-preview {
  padding: 22px;
  background: linear-gradient(160deg, var(--navy-800), var(--navy-700));
  min-height: 170px;
}
.portfolio-preview .mock-bar { background: rgba(255,255,255,0.08); border-radius: 8px 8px 0 0; }
.portfolio-preview .mock-body { padding: 18px 4px 4px; }

.portfolio-info { padding: 20px 22px 26px; }
.portfolio-info .tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--blue-500);
  background: rgba(30,111,217,0.1);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.portfolio-info h3 { font-size: 1.05rem; font-weight: 700; color: var(--navy-900); margin-bottom: 8px; }
.portfolio-info p { font-size: 0.9rem; color: var(--gray-600); }

/* ===== Pricing ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.price-card {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

.price-card.featured {
  background: linear-gradient(165deg, var(--navy-900), var(--navy-700));
  color: var(--white);
  border: none;
  box-shadow: var(--shadow-lg);
  transform: scale(1.03);
}
.price-card.featured .price-note,
.price-card.featured ul li { color: var(--gray-300); }
.price-card.featured h3 { color: var(--white); }

.price-badge {
  align-self: flex-start;
  background: var(--cyan-400);
  color: var(--navy-900);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.price-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 6px; color: var(--navy-900); }
.price-card .price-value {
  font-size: 2rem;
  font-weight: 800;
  margin: 10px 0 4px;
}
.price-card .price-note { font-size: 0.85rem; color: var(--gray-600); margin-bottom: 24px; }

.price-card ul { margin-bottom: 30px; flex-grow: 1; }
.price-card ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--gray-600);
  margin-bottom: 12px;
}
.price-card ul li svg { flex-shrink: 0; width: 18px; height: 18px; color: var(--blue-500); margin-top: 2px; }
.price-card.featured ul li svg { color: var(--cyan-400); }

.pricing-disclaimer {
  text-align: center;
  color: var(--gray-600);
  font-size: 0.88rem;
  margin-top: 40px;
}

/* ===== About ===== */
.about-wrap {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: center;
}

.about-card {
  background: linear-gradient(160deg, var(--navy-900), var(--navy-700));
  border-radius: var(--radius-lg);
  padding: 44px 32px;
  color: var(--white);
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.about-avatar {
  width: 92px; height: 92px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-400));
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; font-weight: 800;
  margin: 0 auto 18px;
}
.about-card h3 { font-size: 1.15rem; margin-bottom: 4px; }
.about-card span { color: var(--gray-300); font-size: 0.9rem; }
.about-card .divider { height: 1px; background: rgba(255,255,255,0.15); margin: 22px 0; }
.about-tags { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.about-tags span {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.78rem;
  color: var(--gray-100);
}

.about-content h2 { font-size: clamp(1.7rem, 3vw, 2.2rem); font-weight: 800; color: var(--navy-900); margin-bottom: 18px; }
.about-content p { color: var(--gray-600); margin-bottom: 16px; }

.about-points { margin-top: 24px; display: grid; gap: 14px; }
.about-points li { display: flex; align-items: flex-start; gap: 12px; font-size: 0.95rem; color: var(--gray-900); }
.about-points li svg { width: 20px; height: 20px; color: var(--blue-500); flex-shrink: 0; margin-top: 2px; }

/* ===== Contact ===== */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.contact-card {
  background: linear-gradient(160deg, var(--navy-900), var(--navy-700));
  border-radius: var(--radius-lg);
  padding: 44px 38px;
  color: var(--white);
  box-shadow: var(--shadow-lg);
}
.contact-card h3 { font-size: 1.4rem; font-weight: 800; margin-bottom: 10px; }
.contact-card p.muted { color: var(--gray-300); margin-bottom: 30px; font-size: 0.95rem; }

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}
.contact-item .icon-wrap {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-item .icon-wrap svg { width: 20px; height: 20px; color: var(--cyan-400); }
.contact-item h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 3px; }
.contact-item a, .contact-item span { color: var(--gray-300); font-size: 0.92rem; }
.contact-item a:hover { color: var(--cyan-400); }

.contact-note {
  margin-top: 30px;
  padding: 16px 18px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--gray-300);
}

.contact-form {
  background: var(--white);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-lg);
  padding: 44px 38px;
  box-shadow: var(--shadow-md);
}
.contact-form h3 { font-size: 1.4rem; font-weight: 800; color: var(--navy-900); margin-bottom: 8px; }
.contact-form p.muted { color: var(--gray-600); margin-bottom: 26px; font-size: 0.92rem; }

.form-row { margin-bottom: 18px; }
.form-row label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy-900);
  margin-bottom: 6px;
}
.form-row input,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--gray-900);
  background: var(--gray-50);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  resize: vertical;
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(55, 147, 195, 0.15);
  background: var(--white);
}

.form-feedback {
  margin-top: 14px;
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
  min-height: 1.2em;
}
.form-feedback.success { color: #1a9d63; }
.form-feedback.error { color: #d0433f; }

.cta-banner {
  background: linear-gradient(135deg, var(--blue-500), var(--cyan-400));
  border-radius: var(--radius-lg);
  padding: 50px 40px;
  margin-top: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  color: var(--white);
}
.cta-banner h3 { font-size: 1.5rem; font-weight: 800; margin-bottom: 6px; }
.cta-banner p { color: rgba(255,255,255,0.9); }
.cta-banner .btn-outline { border-color: rgba(255,255,255,0.7); }

/* ===== Footer ===== */
.site-footer {
  background: var(--navy-900);
  color: var(--gray-300);
  padding: 60px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand p { font-size: 0.9rem; color: var(--gray-300); max-width: 320px; }
.footer-col h4 { color: var(--white); font-size: 0.95rem; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 10px; font-size: 0.9rem; }
.footer-col a:hover { color: var(--cyan-400); }
.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--gray-300);
}
.footer-bottom a:hover { color: var(--cyan-400); }

/* ===== Legal page ===== */
.legal-page {
  padding: 160px 0 100px;
  max-width: 820px;
  margin: 0 auto;
}
.legal-page h1 { font-size: 2rem; font-weight: 800; color: var(--navy-900); margin-bottom: 30px; }
.legal-page h2 { font-size: 1.2rem; font-weight: 700; color: var(--navy-900); margin: 34px 0 12px; }
.legal-page p, .legal-page li { color: var(--gray-600); margin-bottom: 10px; font-size: 0.95rem; }
.legal-page ul { padding-left: 20px; list-style: disc; }
.back-link { display: inline-flex; align-items: center; gap: 8px; color: var(--blue-500); font-weight: 600; margin-bottom: 30px; }

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .price-card.featured { transform: none; }
  .about-wrap { grid-template-columns: 1fr; }
  .about-card { max-width: 360px; margin: 0 auto; }
  .contact-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .main-nav, .header-phone { display: none; }
  .nav-toggle { display: flex; }
  .site-header.nav-open { background: rgba(7,28,51,0.97); }
  .site-header.nav-open .main-nav {
    display: block;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--navy-900);
    padding: 20px 24px 30px;
    box-shadow: var(--shadow-lg);
  }
  .site-header.nav-open .main-nav ul { flex-direction: column; gap: 18px; }
  .site-header.nav-open .header-cta { display: none; }
  .hero { padding: 150px 0 90px; }
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { order: -1; margin-bottom: 20px; }
  .hero-stats { justify-content: space-between; }
  .services-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  section { padding: 70px 0; }
}