/* =============================================
   RK Interiors — style.css
   Bootstrap 5.3 integrated
   Brand: #165E91 | #2976B0 | #8AC0E7
   ============================================= */

/* Bootstrap variable overrides */
:root {
  --bs-font-sans-serif: "DM Sans", sans-serif;
  --bs-body-font-family: "DM Sans", sans-serif;
  --bs-body-color: #0d1b2a;
  --blue-deep: #165e91;
  --blue-mid: #2976b0;
  --blue-light: #8ac0e7;
  --blue-pale: #d6eaf8;
  --blue-tint: #eaf4fc;
  --white: #ffffff;
  --off-white: #f7fafd;
  --dark: #0d1b2a;
  --dark-2: #12263a;
  --text-muted-rk: #5e87a8;
  --border: rgba(41, 118, 176, 0.18);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "DM Sans", sans-serif;
  background: #fff;
  color: #0d1b2a;
  overflow-x: hidden;
}

/* Custom cursor */
#cur {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 10px;
  height: 10px;
  background: var(--blue-mid);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
}
#ring {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 38px;
  height: 38px;
  border: 1.5px solid rgba(41, 118, 176, 0.45);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition:
    width 0.3s,
    height 0.3s,
    border-color 0.3s;
}

/* TOP BAR */
.topbar {
  background: var(--blue-deep);
  color: rgba(255, 255, 255, 0.8);
  font-size: 11px;
  letter-spacing: 0.4px;
  padding: 8px 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
}
.topbar a {
  color: inherit;
  text-decoration: none;
}
.topbar span {
  display: flex;
  align-items: center;
  gap: 6px;
}
.topbar .sep {
  opacity: 0.3;
}

/* HEADER */
header {
  position: fixed;
  top: 37px;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  padding: 0 64px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition:
    top 0.4s,
    box-shadow 0.3s;
}
header.up {
  top: 0;
  box-shadow: 0 4px 32px rgba(22, 94, 145, 0.1);
}

/* LOGO */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-mark {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-mid));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Playfair Display", serif;
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 1px;
}
.logo-words {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.logo-name {
  font-family: "Playfair Display", serif;
  font-size: 19px;
  font-weight: 600;
  color: #0d1b2a;
  letter-spacing: 0.5px;
}
.logo-sub {
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--text-muted-rk);
  text-transform: uppercase;
  margin-top: 4px;
}

/* DESKTOP NAV */
nav {
  display: flex;
  align-items: center;
  gap: 40px;
}
nav a {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  color: #0d1b2a;
  text-decoration: none;
  position: relative;
  padding-bottom: 3px;
  white-space: nowrap;
}
nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--blue-mid);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s;
}
nav a:hover {
  color: var(--blue-mid);
}
nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.hdr-btn {
  background: var(--blue-mid);
  color: #fff;
  padding: 10px 26px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.5px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition:
    background 0.25s,
    transform 0.2s;
  white-space: nowrap;
  display: inline-block;
}
.hdr-btn:hover {
  background: var(--blue-deep);
  transform: translateY(-1px);
  color: #fff;
}

/* BURGER */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 6px;
  z-index: 1100;
}
.burger span {
  width: 24px;
  height: 2px;
  background: #0d1b2a;
  display: block;
  border-radius: 2px;
  transition: all 0.3s ease;
}
.burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.burger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* MOBILE NAV */
.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(18px);
  z-index: 998;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  max-height: calc(100vh - 72px);
  overflow-y: auto;
}
.mobile-nav.active {
  display: block;
}
.mobile-nav a {
  display: block;
  padding: 15px 24px;
  font-size: 14px;
  font-weight: 500;
  color: #0d1b2a;
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition:
    background 0.25s,
    color 0.25s,
    padding-left 0.2s;
}
.mobile-nav a:last-child {
  border-bottom: none;
}
.mobile-nav a:hover {
  background: var(--blue-tint);
  color: var(--blue-mid);
  padding-left: 32px;
}
.mobile-nav a[href*="tel"] {
  color: var(--blue-mid);
  font-weight: 600;
  background: rgba(41, 118, 176, 0.05);
}
.mobile-nav a[href*="tel"]:hover {
  background: var(--blue-mid);
  color: #fff;
  padding-left: 24px;
}

/* HERO */
.hero {
  min-height: 100vh;
  background-image: url("../images/Banner3.jpeg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding-top: 110px;
}
.overlay {
  position: absolute;
  inset: 0;
  background: rgba(4, 4, 4, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}
.hero-mesh {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 60% at 70% 40%, rgba(41, 118, 176, 0.28) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 20% 70%, rgba(22, 94, 145, 0.22) 0%, transparent 60%);
}
.hero-stripe {
  position: absolute;
  top: 0;
  right: 0;
  width: 52%;
  height: 100%;
  pointer-events: none;
  background: rgba(41, 118, 176, 0.05);
  clip-path: polygon(12% 0, 100% 0, 100% 100%, 0 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  padding: 40px 64px;
  width: 100%;
  max-width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(239, 239, 240, 0.12);
  border: 1px solid rgb(255, 255, 255);
  padding: 6px 16px;
  font-size: 10px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 28px;
}
.hero-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  background: #ffff;
  border-radius: 50%;
  flex-shrink: 0;
}
.hero h1 {
  font-family: "Playfair Display", serif;
  font-size: clamp(36px, 5.2vw, 78px);
  font-weight: 700;
  line-height: 1.08;
  color: #fff;
  margin-bottom: 28px;
}
.hero h1 em {
  font-style: italic;
  color: var(--blue-light);
}
.hero-desc {
  font-size: 16px;
  line-height: 1.7;
  color: rgb(255, 255, 255);
  font-weight: 300;
  max-width: 480px;
  margin-bottom: 44px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* BUTTONS — override Bootstrap completely */
.btn-primary {
  background: var(--blue-mid) !important;
  color: #fff !important;
  padding: 14px 34px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-decoration: none;
  display: inline-block;
  transition:
    background 0.25s,
    transform 0.2s;
  cursor: pointer;
  border: none !important;
  border-radius: 0 !important;
  box-shadow: none !important;
}
.btn-primary:hover,
.btn-primary:focus {
  background: var(--blue-deep) !important;
  transform: translateY(-2px);
  color: #fff !important;
  box-shadow: none !important;
}
.btn-outline-light {
  border: 1.5px solid rgb(255, 255, 255);
  color: #ffffff;
  padding: 13px 30px;
  font-size: 12px;
  font-weight: 500;
  text-decoration: none;
  display: inline-block;
  transition:
    border-color 0.25s,
    color 0.25s;
}
.btn-outline-light:hover {
  border-color: var(--blue-light);
  color: #fff;
}
.btn-white {
  background: #fff;
  color: var(--blue-deep);
  padding: 15px 38px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-decoration: none;
  white-space: nowrap;
  display: inline-block;
  transition: all 0.25s;
  cursor: pointer;
}
.btn-white:hover {
  background: var(--blue-pale);
  transform: translateY(-2px);
  color: var(--blue-deep);
}

/* HERO CARDS */
.hero-cards {
  position: relative;
  height: 460px;
}
.hcard {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  background-image: url("../images/13.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 26px;
}
.hcard-main {
  width: 300px;
  height: 290px;
  top: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.hcard-stat {
  width: 175px;
  bottom: 55px;
  left: 0;
  background: rgba(22, 94, 145, 0.72);
}
.hcard-sm {
  width: 135px;
  top: 210px;
  right: 28px;
  background: rgba(138, 192, 231, 0.14);
  text-align: center;
}
.hn {
  font-family: "Playfair Display", serif;
  font-size: 40px;
  font-weight: 700;
  color: #fff;
  line-height: 1;
}
.hl {
  font-size: 10px;
  letter-spacing: 1.5px;
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
  margin-top: 6px;
}
.htag {
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 7px;
}
.htitle {
  font-size: 13px;
  font-weight: 500;
  color: #fff;
  margin-bottom: 5px;
}
.hsub {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.45);
}
.hero-scroll {
  position: absolute;
  bottom: 38px;
  left: 64px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 10px;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.32);
  text-transform: uppercase;
}
.sbar {
  width: 48px;
  height: 1px;
  background: rgba(255, 255, 255, 0.18);
  position: relative;
  overflow: hidden;
}
.sbar::after {
  content: "";
  position: absolute;
  left: -100%;
  top: 0;
  width: 100%;
  height: 100%;
  background: var(--blue-light);
  animation: sb 2.2s ease-in-out infinite;
}
@keyframes sb {
  50% {
    left: 0;
  }
  100% {
    left: 100%;
  }
}

/* SECTIONS */
.sec {
  padding: 108px 64px;
}
.sec-light {
  background: var(--off-white);
}
.sec-label {
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--blue-mid);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.sec-label::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--blue-mid);
}
.sec-title {
  font-family: "Playfair Display", serif;
  font-size: clamp(26px, 3.3vw, 48px);
  font-weight: 600;
  line-height: 1.15;
  color: #0d1b2a;
  margin-bottom: 20px;
}
.sec-title em {
  font-style: italic;
  color: var(--blue-mid);
}

/* ABOUT */
.about-imgs {
  position: relative;
  height: 540px;
  min-height: 280px;
}
.aimg {
  position: absolute;
  background-image: url("../images/8.webp");
  border: 1px solid var(--border);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  /* overflow: hidden; */
}
.aimg-1 {
  width: 72%;
  height: 68%;
  top: 0;
  left: 0;
}
.aimg-2 {
  width: 56%;
  height: 52%;
  bottom: 0;
  right: 0;
  border: 2px solid var(--blue-mid);
}
.aimg::before {
  content: "";
  position: absolute;
  inset: 0;
  /* background: linear-gradient(135deg, var(--blue-pale), var(--blue-tint)); */
  opacity: 0.7;
}
.exp-tag {
  position: absolute;
  bottom: 29%;
  right: 27%;
  background: var(--blue-mid);
  color: #fff;
  padding: 18px 20px;
  z-index: 3;
}
.exp-tag .en {
  font-family: "Playfair Display", serif;
  font-size: 36px;
  font-weight: 700;
  line-height: 1;
  display: block;
}
.exp-tag .el {
  font-size: 9px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  opacity: 0.75;
  display: block;
  margin-top: 5px;
}
.about-body {
  padding: 60px 64px;
}
.about-body p {
  font-size: 14px;
  line-height: 1.9;
  color: #4a6a84;
  font-weight: 300;
  margin-bottom: 18px;
  text-align: justify;
}
.about-stats {
  border-top: 1px solid var(--border);
  padding-top: 11px;
}
.about-stats .col-6 {
  display: flex;
  flex-direction: column;
  text-align: center;
  /* border: 1px saddlebrown; */
  box-shadow: -1px -1px 3px 0px #2976b0;
}

.astat-num {
  font-family: "Playfair Display", serif;
  font-size: 42px;
  font-weight: 700;
  color: var(--blue-mid);
  line-height: 1;
  display: block;
}
.astat-lbl {
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted-rk);
  margin-top: 5px;
  display: block;
}

/* SERVICES */
.svc-card {
  /* background: #fff; */
  /* background-image: url("../images/6.webp"); */
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 42px 34px;
  border-bottom: 3px solid transparent;
  transition:
    border-color 0.3s,
    transform 0.3s,
    box-shadow 0.3s;
  position: relative;
  overflow: hidden;
  border-radius: 0 !important;
  height: 100%;
}
.svc-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--blue-tint);
  opacity: 0;
  transition: opacity 0.3s;
  cursor: pointer;
}
.svc-card:hover {
  border-bottom-color: var(--blue-mid);
  transform: translateY(-4px);
  box-shadow: 0 18px 38px rgba(41, 118, 176, 0.09);
}
.svc-card:hover::before {
  opacity: 1;
}
.svc-card > * {
  position: relative;
}
.svc-num {
  font-family: "Playfair Display", serif;
  font-size: 50px;
  font-weight: 700;
  color: rgba(41, 118, 176, 0.08);
  line-height: 1;
  margin-bottom: 18px;
  transition: color 0.3s;
}
.svc-card:hover .svc-num {
  color: rgba(41, 118, 176, 0.18);
}
.svc-icon {
  width: 44px;
  height: 44px;
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  transition: all 0.3s;
}

.svc-icon img {
  mix-blend-mode: multiply;   
}

.svc-card:hover .svc-icon {
  border-color: var(--blue-mid);
  background: var(--blue-pale);
}
.svc-name {
  font-family: "Playfair Display", serif;
  font-size: 19px;
  font-weight: 600;
  color: #0d1b2a;
  margin-bottom: 10px;
}
.svc-desc {
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--text-muted-rk);
  font-weight: 300;
  margin: 0;
}

/* PROJECTS */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.tab {
  padding: 11px 22px;
  font-size: 11px;
  letter-spacing: 0.5px;
  font-weight: 500;
  color: var(--text-muted-rk);
  border: none;
  cursor: pointer;
  position: relative;
  transition: color 0.25s;
}
.tab::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--blue-mid);
  transform: scaleX(0);
  transition: transform 0.3s;
}
.tab.active {
  color: var(--blue-mid);
}
.tab.active::after {
  transform: scaleX(1);
}
.tab:hover {
  color: var(--blue-deep);
}

.proj-card {
  position: relative;
  overflow: hidden;
  height: 275px;
  background: var(--blue-tint);
  padding: 0 !important;
}
.proj-card--wide {
  height: 355px;
}
.proj-bg {
  position: absolute;
  inset: 0;
  transition: transform 0.6s ease;
}
.proj-card:nth-child(1) .proj-bg {
  background: linear-gradient(145deg, #1e4d7a, #2976b0);
}
.proj-card:nth-child(2) .proj-bg {
  background: linear-gradient(145deg, #12344f, #165e91);
}
.proj-card:nth-child(3) .proj-bg {
  background: linear-gradient(145deg, #0e2a42, #1f5a8a);
}
.proj-card:nth-child(4) .proj-bg {
  background: linear-gradient(145deg, #1b3f62, #2470aa);
}
.proj-card:nth-child(5) .proj-bg {
  background: linear-gradient(145deg, #142d47, #1a5280);
}
.proj-card:hover .proj-bg {
  transform: scale(1.06);
}
.proj-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(13, 27, 42, 0.92) 30%,
    rgba(13, 27, 42, 0.18) 70%,
    transparent
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 26px 26px 28px;
}
.proj-cat {
  font-size: 9px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 6px;
}
.proj-name {
  font-family: "Playfair Display", serif;
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  line-height: 1.3;
}
.proj-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--blue-light);
  text-decoration: none;
  margin-top: 10px;
  opacity: 0;
  transform: translateY(6px);
  transition:
    opacity 0.3s 0.1s,
    transform 0.3s 0.1s;
}
.proj-card:hover .proj-link {
  opacity: 1;
  transform: translateY(0);
}

/* CLIENTS */
.clients-bar {
  padding: 58px 64px;
  background: #12263a;
  display: flex;
  align-items: center;
  gap: 68px;
  flex-wrap: wrap;
}
.cl-label {
  min-width: 175px;
  flex-shrink: 0;
}
.cl-label small {
  font-size: 10px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--blue-light);
  display: block;
  margin-bottom: 8px;
}
.cl-label h3 {
  font-family: "Playfair Display", serif;
  font-size: 21px;
  font-weight: 600;
  color: #fff;
  line-height: 1.3;
  margin: 0;
}
.cl-logos {
  flex: 1;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 36px;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  padding-left: 68px;
}
.cl-logo {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.28);
  transition: color 0.3s;
  white-space: nowrap;
  cursor: default;
}
.cl-logo:hover {
  color: var(--blue-light);
}

/* CTA BAND */
.cta-band {
  background: linear-gradient(135deg, var(--blue-deep) 0%, var(--blue-mid) 100%);
  padding: 80px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}
.cta-band h2 {
  font-family: "Playfair Display", serif;
  font-size: clamp(24px, 2.9vw, 42px);
  font-weight: 600;
  color: #fff;
  line-height: 1.25;
  margin: 0;
}
.cta-band h2 em {
  font-style: italic;
  color: var(--blue-light);
}

/* CONTACT */
.contact-body p {
  font-size: 14px;
  line-height: 1.9;
  color: #4a6a84;
  font-weight: 300;
  margin-bottom: 36px;
}
.cinfo-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.cinfo-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border);
}
.cinfo-item:last-child {
  border-bottom: none;
}
.cinfo-icon {
  width: 38px;
  height: 38px;
  border: 1.5px solid var(--border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-mid);
}
.cinfo-text small {
  display: block;
  font-size: 9px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--text-muted-rk);
  margin-bottom: 5px;
}
.cinfo-text span {
  font-size: 13px;
  color: #0d1b2a;
  word-break: break-word;
}

/* FORM — Bootstrap overrides */
.ffield {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ffield label {
  font-size: 9px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--text-muted-rk);
  font-weight: 500;
  margin-bottom: 0;
}
.form-control,
.form-select {
  background: var(--off-white) !important;
  border: 1.5px solid var(--border) !important;
  color: #0d1b2a !important;
  padding: 13px 16px !important;
  font-family: "DM Sans", sans-serif !important;
  font-size: 13px !important;
  font-weight: 300 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
}
.form-control:focus,
.form-select:focus {
  border-color: var(--blue-mid) !important;
  background: #fff !important;
  box-shadow: none !important;
}
textarea.form-control {
  resize: vertical;
  min-height: 120px;
}
.submit-btn {
  background: var(--blue-mid);
  border: none;
  color: #fff;
  padding: 14px 42px;
  font-family: "DM Sans", sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition:
    background 0.25s,
    transform 0.2s;
  width: 100%;
  display: block;
}
.submit-btn:hover {
  background: var(--blue-deep);
  transform: translateY(-2px);
}

/* FOOTER */
footer {
  background: #0d1b2a;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 70px 64px 34px;
}
.foot-about p {
  font-size: 12.5px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.32);
  font-weight: 300;
}
.socials {
  display: flex;
  gap: 9px;
  flex-wrap: wrap;
}
.social {
  width: 33px;
  height: 33px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.3);
  font-size: 11px;
  text-decoration: none;
  transition: all 0.25s;
}
.social:hover {
  border-color: var(--blue-light);
  color: var(--blue-light);
}
.foot-col h4 {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--blue-light);
  margin-bottom: 20px;
}
.foot-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.foot-col ul li {
  margin-bottom: 10px;
}
.foot-col ul li a {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.32);
  text-decoration: none;
  font-weight: 300;
  transition: color 0.25s;
}
.foot-col ul li a:hover {
  color: var(--blue-light);
}
.foot-contact p {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.32);
  line-height: 1.8;
  font-weight: 300;
  margin-bottom: 8px;
}
.foot-contact a {
  color: rgba(255, 255, 255, 0.32);
  text-decoration: none;
  transition: color 0.25s;
}
.foot-contact a:hover {
  color: var(--blue-light);
}
.foot-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 26px;
  margin-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.22);
  font-weight: 300;
  flex-wrap: wrap;
  gap: 12px;
}

/* REVEAL */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity 0.75s ease,
    transform 0.75s ease;
}
.reveal.vis {
  opacity: 1;
  transform: translateY(0);
}

/* ════════════════════════════════════
   RESPONSIVE (Bootstrap grid handles
   columns; we fine-tune RK custom parts)
   ════════════════════════════════════ */

@media (max-width: 1199px) {
  header,
  .topbar,
  .sec,
  .cta-band,
  .clients-bar,
  footer {
    padding-left: 40px;
    padding-right: 40px;
  }
  .hero-inner,
  .about-body {
    padding-left: 40px;
    padding-right: 40px;
  }
}

@media (max-width: 991px) {
  nav {
    display: none !important;
  }
  .hdr-btn {
    display: none !important;
  }
  .burger {
    display: flex !important;
  }

  header {
    top: 34px;
    padding: 0 20px;
    height: 64px;
  }
  header.up {
    top: 0;
  }
  .topbar {
    padding: 6px 20px;
    font-size: 10px;
    gap: 16px;
    flex-wrap: nowrap;
    justify-content: center;
  }
  .topbar .sep {
    display: none;
  }
  .topbar span:not(:first-child) {
    display: none;
  }
  .mobile-nav {
    top: 98px;
  }
  .hero {
    padding-top: 98px;
  }
  .hero-inner {
    padding: 40px 20px 64px;
  }
  .hero-scroll {
    left: 20px;
    bottom: 20px;
  }
  .about-body {
    padding: 40px 20px;
  }
  .about-imgs {
    height: 380px;
  }
  .clients-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }
  .cl-logos {
    border-left: none;
    padding-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 22px;
    width: 100%;
  }
  .cta-band {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
  footer {
    padding: 52px 20px 28px;
  }
  .sec {
    padding: 80px 20px;
  }
  .cta-band,
  .clients-bar {
    padding-left: 20px;
    padding-right: 20px;
  }
}

@media (max-width: 767px) {
  .topbar {
    display: none !important;
  }
  header {
    top: 0;
    padding: 0 16px;
    height: 58px;
  }
  .mobile-nav {
    top: 58px;
  }
  .hero {
    padding-top: 58px;
    min-height: 74svh;
  }
  .hero-inner {
    padding: 36px 16px 56px;
  }
  .hero h1 {
    font-size: clamp(28px, 8vw, 44px);
    margin-bottom: 16px;
  }
  .hero-desc {
    font-size: 13px;
    margin-bottom: 28px;
  }
  .hero-badge {
    font-size: 9px;
    margin-bottom: 16px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    max-width: 340px;
  }
  .btn-primary,
  .btn-outline-light {
    width: 100%;
    text-align: center;
    padding: 14px 20px;
  }
  .hero-scroll {
    display: none;
  }
  .sec {
    padding: 60px 16px;
  }
  .cta-band,
  .clients-bar {
    padding: 48px 16px;
  }
  footer {
    padding: 48px 16px 24px;
  }
  .about-imgs {
    height: 260px;
  }
  .about-body {
    padding: 32px 16px;
  }
  .exp-tag {
    bottom: 14px;
    right: 10px;
    padding: 12px 14px;
  }
  .exp-tag .en {
    font-size: 26px;
  }
  .astat-num {
    font-size: 32px;
  }
  .svc-card {
    padding: 28px 20px;
  }
  .proj-card,
  .proj-card--wide {
    height: 220px;
  }
  .tabs {
    flex-wrap: wrap;
  }
  .tab {
    padding: 9px 12px;
    font-size: 10px;
  }
  .cta-band h2 {
    font-size: clamp(20px, 6vw, 28px);
  }
  .btn-white {
    width: 100%;
    text-align: center;
  }
  .foot-bottom {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }
  .cl-logos {
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .logo-sub {
    display: none;
  }
  .logo-name {
    font-size: 16px;
  }
  .logo-mark {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }
  .hero h1 {
    font-size: 26px;
  }
  .sec-title {
    font-size: 22px;
  }
  .about-imgs {
    height: 210px;
  }
  .sec {
    padding: 11px 9px;
  }
  .astat-num {
    font-size: 28px;
  }
  .aimg-1 {
    width: 95%;
    height: 78%;
    top: 0;
    left: 7;
  }
}