:root {
  --tirono-teal: #0b8b8f;
  --tirono-orange: #f7941d;
  --tirono-dark: #1e2429;
  --tirono-light-bg: #f7f9fb;
}

/* ========== BASE ========== */

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #ffffff;
  color: #222;
  margin: 0;
}

html {
  scroll-behavior: smooth;
}

/* ========== TOPBAR ========== */

.topbar {
  font-size: 0.9rem;
  border-bottom: 1px solid #f1f1f1;
  background: #ffffff;
}

.topbar a {
  color: #555;
  text-decoration: none;
}

.topbar a:hover {
  color: #007bff;
}

/* Rounded social icons */
.topbar-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: #f4f7ff;
  color: #007bff;
  margin-left: 0.35rem;
  font-size: 0.9rem;
  transition: 0.25s;
}

.topbar-social a:hover {
  background: #007bff;
  color: #fff;
}

/* ========== NAVBAR ========== */

/* default: normal flow */
.navbar-main {
  background: #ffffff !important;
  padding-top: 0.7rem;
  padding-bottom: 0.7rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

/* when scrolled past topbar => fixed at top */
.navbar-fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1030;
}

/* Logo */
.navbar-main .navbar-brand img {
  height: 40px;
}

/* Nav links + underline animation */
.navbar-main .nav-link {
  color: #111 !important;
  font-weight: 500;
  padding: 0.25rem 0.75rem;
  position: relative;
}

/* hidden underline */
.navbar-main .nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: #007bff;
  transition: width 0.25s ease;
}

/* hover & active */
.navbar-main .nav-link:hover {
  color: #007bff !important;
}


.nav-link.active {
  color: #007bff;
  border-bottom: 2px solid #007bff;  /* like your blue underline */
}

/* Get a Demo button */
.btn-demo {
  border-radius: 999px;
  padding: 0.45rem 1.6rem;
  font-weight: 600;
  background: #007bff;
  border-color: #007bff;
  color: #fff;
  box-shadow: 0 6px 14px rgba(0, 123, 255, 0.35);
  transition: 0.2s;
}

.btn-demo:hover {
  background: #0056c7;
  border-color: #0056c7;
  transform: translateY(-1px);
}

/* Hero section */

.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding: 80px 0;
  background: linear-gradient(135deg, #0066cc 0%, #003366 45%, #000c1f 100%);
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

/* Optional soft curve at bottom (can remove if you don't want it) */
.hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -60px;
  height: 120px;
  background: #ffffff;
  border-radius: 50% 50% 0 0;
}

/* Make sure content stays above the curve */
.hero .container {
  position: relative;
  z-index: 2;
}

.hero-text h1 {
  line-height: 1.2;
}

.hero-text p {
  max-width: 480px;
}

.hero-image .hero-illustration {
  max-width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.4));
}

/* Mobile tweaks */
@media (max-width: 991.98px) {
  .hero {
    text-align: center;
    padding-top: 100px;
  }

  .hero-text p {
    margin: 0 auto 1.5rem;
  }

  .hero::after {
    bottom: -40px;
    height: 80px;
  }
}


/* ========== UTILITIES ========== */

.section {
  padding: 4rem 0;
}


/* Sections */
.section-title {
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  max-width: 720px;
  margin: 0 auto 2rem;
  color: #666;
}

.section-light {
  background: var(--tirono-light-bg);
}

/* Cards */
.service-card {
  border: none;
  border-radius: 0.75rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 35px rgba(0, 0, 0, 0.08);
}

/* Buttons */
.btn-primary {
  background-color: var(--tirono-teal);
  border-color: var(--tirono-teal);
}

.btn-primary:hover {
  background-color: #086a6e;
  border-color: #086a6e;
}

.btn-outline-primary {
  color: var(--tirono-teal);
  border-color: var(--tirono-teal);
}

.btn-outline-primary:hover {
  background-color: var(--tirono-teal);
  color: #fff;
}

/* Gallery */
.gallery-img {
  width: 100%;
  border-radius: 0.75rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* Contact */
.form-control:focus,
.form-select:focus {
  border-color: var(--tirono-teal);
  box-shadow: 0 0 0 0.2rem rgba(11, 139, 143, 0.15);
}

/* ============================
   TECHNOLOGY STACK SECTION
============================ */
.tech-stack-section {
  background: radial-gradient(circle at top left, #e6f4ff 0, transparent 55%),
              radial-gradient(circle at bottom right, #eafaf6 0, transparent 55%),
              #f8fbff;
}

.tech-logo-row {
  margin-top: 1.5rem;
}

.tech-logo-card {
  background: #ffffff;
  border-radius: 14px;
  padding: 18px 16px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.tech-logo-card img {
  max-height: 70px;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.08));
}

.tech-logo-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.12);
  background: linear-gradient(135deg, #ffffff, #f0f9ff);
}

/* ============================
   DEVELOPMENT PROCESS SECTION
============================ */
.dev-process-section {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #0d6efd, #00c6ff);
}

.dev-process-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.08) 0, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.08) 0, transparent 45%);
  pointer-events: none;
}

/* timeline line behind the cards (desktop) */
.dev-process-timeline {
  position: relative;
  z-index: 1;
}

.dev-process-timeline::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 5%;
  right: 5%;
  height: 2px;
  background: linear-gradient(to right, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.4));
  transform: translateY(-50%);
  z-index: -1;
}

/* step cards */
.process-step {
  background: #ffffff;
  border-radius: 20px;
  padding: 18px 16px 20px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.15);
  text-align: left;
  position: relative;
  overflow: hidden;
  height: 100%;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.process-step::after {
  content: "";
  position: absolute;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: rgba(13, 110, 253, 0.07);
  bottom: -35px;
  right: -25px;
}

.process-step .step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(13, 110, 253, 0.12);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.process-step .step-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.process-step .step-text {
  font-size: 0.86rem;
  margin-bottom: 0;
}

.process-step:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.22);
}

/* Responsive tweaks */
@media (max-width: 767.98px) {
  .dev-process-timeline::before {
    display: none;
  }

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


/* Footer */
footer {
  background: var(--tirono-dark);
  color: #ddd;
}

.social-icons a {
  color: #ddd;
  margin: 0 0.4rem;
  font-size: 1.4rem;
}

.social-icons a:hover {
  color: var(--tirono-orange);
  transition: color 0.2s ease;
}

/* Utility */
.text-tirono {
  color: var(--tirono-teal);
}

.badge-tirono {
  background: rgba(11, 139, 143, 0.12);
  color: var(--tirono-teal);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}