/* =============================================
   EnergyLogic – Energy Consultancy | Global Styles
   ============================================= */

/* ---------- CSS Custom Properties ---------- */
:root {
  --clr-primary:    #0ea5e9;   /* sky-500  */
  --clr-primary-d:  #0284c7;   /* sky-600  */
  --clr-primary-l:  #bae6fd;   /* sky-200  */
  --clr-accent:     #10b981;   /* emerald  */
  --clr-dark:       #0f172a;   /* slate-900*/
  --clr-dark-2:     #1e293b;   /* slate-800*/
  --clr-dark-3:     #334155;   /* slate-700*/
  --clr-muted:      #64748b;   /* slate-500*/
  --clr-light:      #f1f5f9;   /* slate-100*/
  --clr-white:      #ffffff;

  --font-base:  'Inter', system-ui, sans-serif;
  --font-head:  'Poppins', system-ui, sans-serif;

  --radius-sm:  0.375rem;
  --radius-md:  0.75rem;
  --radius-lg:  1.25rem;
  --radius-xl:  2rem;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:  0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg:  0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);
  --shadow-xl:  0 20px 25px rgba(0,0,0,.1), 0 10px 10px rgba(0,0,0,.04);

  --transition: 0.25s ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-base);
  color: var(--clr-dark);
  background: var(--clr-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
body.nav-open {
  overflow: hidden;
}
body.nav-open::after {
  content: "";
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.55);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  z-index: 950;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, textarea, select {
  font: inherit;
  width: 100%;
  border: 1.5px solid #e2e8f0;
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  background: var(--clr-white);
  color: var(--clr-dark);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(14,165,233,.15);
}
textarea { resize: vertical; min-height: 120px; }

/* ---------- Layout Utilities ---------- */
.container {
  width: min(100%, 1200px);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}
.section { padding-block: clamp(4rem, 8vw, 6rem); }
.text-accent { color: var(--clr-primary); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--clr-primary);
  color: var(--clr-white);
  box-shadow: 0 4px 14px rgba(14,165,233,.4);
}
.btn--primary:hover {
  background: var(--clr-primary-d);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(14,165,233,.5);
}
.btn--outline {
  border: 2px solid rgba(255,255,255,.5);
  color: var(--clr-white);
}
.btn--outline:hover {
  border-color: var(--clr-white);
  background: rgba(255,255,255,.1);
}
.btn--full { width: 100%; justify-content: center; }

/* ---------- Section Headers ---------- */
.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-primary);
  background: rgba(14,165,233,.1);
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.section-header {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--clr-dark);
  margin-bottom: 1rem;
}
.section-subtitle {
  color: var(--clr-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* =============================================
   HEADER & NAV
   ============================================= */
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  padding-block: 1rem;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}
.header.scrolled {
  background: rgba(15, 23, 42, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0,0,0,.3);
  padding-block: 0.65rem;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--clr-white);
  letter-spacing: -0.02em;
}
.nav__logo strong { font-weight: 800; color: var(--clr-primary); }
.nav__logo-icon { width: 36px; height: 36px; flex-shrink: 0; }

.nav__menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav__link {
  color: rgba(255,255,255,.8);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav__link:hover { color: var(--clr-white); background: rgba(255,255,255,.08); }
.nav__link--cta {
  background: var(--clr-primary);
  color: var(--clr-white) !important;
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(14,165,233,.4);
}
.nav__link--cta:hover {
  background: var(--clr-primary-d);
  box-shadow: 0 4px 14px rgba(14,165,233,.5);
}

/* Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.4rem;
  border-radius: var(--radius-sm);
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-white);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav__toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.active span:nth-child(2) { opacity: 0; }
.nav__toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Dropdown nav */
.nav__dropdown {
  position: relative;
}
.nav__link--dropdown {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.nav__dropdown-arrow {
  transition: transform var(--transition);
}
.nav__dropdown.open .nav__dropdown-arrow {
  transform: rotate(180deg);
}
.nav__dropdown-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  min-width: 160px;
  background: var(--clr-dark);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0,0,0,.4);
  padding: 0.4rem 0;
  display: none;
  z-index: 100;
}
.nav__dropdown.open .nav__dropdown-menu {
  display: block;
}
.nav__dropdown-link {
  display: block;
  padding: 0.55rem 1rem;
  color: rgba(255,255,255,.8);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition), background var(--transition);
}
.nav__dropdown-link:hover {
  color: var(--clr-white);
  background: rgba(255,255,255,.08);
}

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  background: var(--clr-dark);
  padding-block: clamp(6rem, 12vw, 8rem);
}
.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero__gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(14,165,233,.2) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 20% 70%, rgba(16,185,129,.12) 0%, transparent 60%);
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__text { color: var(--clr-white); }
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-primary-l);
  border: 1px solid rgba(14,165,233,.3);
  padding: 0.4rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
  background: rgba(14,165,233,.08);
}
.hero__title {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}
.hero__desc {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: rgba(255,255,255,.7);
  line-height: 1.75;
  max-width: 520px;
  margin-bottom: 2.5rem;
}
.hero__vision {
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  color: var(--clr-primary-l);
  font-style: italic;
  font-weight: 500;
  margin-top: -0.75rem;
  margin-bottom: 1.75rem;
  letter-spacing: 0.01em;
}
.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Hero visual / floating cards */
.hero__visual {
  position: relative;
  height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.5;
}
.hero__orb--1 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, var(--clr-primary) 0%, transparent 70%);
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  animation: pulse 4s ease-in-out infinite;
}
.hero__orb--2 {
  width: 200px; height: 200px;
  background: radial-gradient(circle, var(--clr-accent) 0%, transparent 70%);
  top: 20%; right: 10%;
  animation: pulse 5s ease-in-out infinite reverse;
}
@keyframes pulse {
  0%, 100% { transform: translate(-50%,-50%) scale(1); }
  50%        { transform: translate(-50%,-50%) scale(1.15); }
}
.hero__orb--2 { animation-name: pulse2; }
@keyframes pulse2 {
  0%, 100% { opacity: 0.5; }
  50%       { opacity: 0.7; }
}

.hero__card {
  position: absolute;
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 1rem 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  color: var(--clr-white);
  box-shadow: 0 8px 32px rgba(0,0,0,.3);
  animation: floatCard 6s ease-in-out infinite;
}
.hero__card--1 { top: 8%;  left: 5%;  animation-delay: 0s; }
.hero__card--2 { top: 45%; right: 0%; animation-delay: 1.5s; }
.hero__card--3 { bottom: 8%; left: 10%; animation-delay: 3s; }
@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}
.hero__card-icon { font-size: 1.8rem; line-height: 1; }
.hero__card-num  { font-family: var(--font-head); font-size: 1.5rem; font-weight: 700; line-height: 1; }
.hero__card-lbl  { font-size: 0.75rem; color: rgba(255,255,255,.6); margin-top: 2px; }

/* Scroll hint */
.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  color: rgba(255,255,255,.4);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  z-index: 1;
}
.hero__scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid rgba(255,255,255,.3);
  border-bottom: 2px solid rgba(255,255,255,.3);
  transform: rotate(45deg);
  animation: scrollBounce 1.8s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50%       { transform: rotate(45deg) translateY(6px); }
}

/* =============================================
   CLIENTS / TRUST BAR
   ============================================= */
.clients {
  background: var(--clr-light);
  padding-block: 2.5rem;
  border-top: 1px solid #e2e8f0;
  border-bottom: 1px solid #e2e8f0;
}
.clients__label {
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-muted);
  margin-bottom: 1.5rem;
}
.clients__logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  flex-wrap: wrap;
}
.client-logo {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  color: #94a3b8;
  transition: color var(--transition);
  white-space: nowrap;
}
.client-logo:hover { color: var(--clr-dark-3); }

/* =============================================
   SERVICES
   ============================================= */
.services { background: var(--clr-white); }
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.75rem;
}

.service-card {
  background: var(--clr-white);
  border: 1.5px solid #e2e8f0;
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--clr-primary-l);
}
.service-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--icon-color) 12%, transparent);
  color: var(--icon-color);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
}
.service-card__icon svg { width: 26px; height: 26px; }
.service-card__title {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--clr-dark);
}
.service-card__desc {
  font-size: 0.93rem;
  color: var(--clr-muted);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}
.service-card__link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--clr-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap var(--transition);
}
.service-card__link:hover { gap: 0.5rem; }

/* =============================================
   ABOUT
   ============================================= */
.about { background: var(--clr-light); }
.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.about__visual { display: flex; justify-content: center; }
.about__img-wrap {
  position: relative;
  width: min(100%, 400px);
}
.about__img-placeholder {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 1;
  background: var(--clr-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-xl);
}
.about__img-placeholder svg { width: 80%; height: 80%; }
.about__badge {
  position: absolute;
  bottom: -1rem;
  right: -1rem;
  background: var(--clr-primary);
  color: var(--clr-white);
  padding: 1rem 1.4rem;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 25px rgba(14,165,233,.5);
  text-align: center;
  animation: floatCard 5s ease-in-out infinite;
}
.about__badge-num {
  display: block;
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}
.about__badge-txt {
  font-size: 0.75rem;
  font-weight: 500;
  opacity: 0.9;
  white-space: nowrap;
}
.about__text .section-tag { margin-bottom: 0.75rem; }
.about__text .section-title { text-align: left; margin-bottom: 1rem; }
.about__text p { color: var(--clr-muted); line-height: 1.8; margin-bottom: 1rem; }
.about__vision {
  background: rgba(14,165,233,.08);
  border-left: 4px solid var(--clr-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1rem 1.25rem;
  margin: 1.25rem 0;
}
.about__vision-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-primary);
  margin-bottom: 0.35rem;
}
.about__vision .about__vision-text {
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-dark);
  font-style: italic;
  line-height: 1.5;
  margin-bottom: 0;
}
.about__list { margin: 1.5rem 0 2rem; display: flex; flex-direction: column; gap: 0.75rem; }
.about__list-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--clr-dark);
}
.about__check {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  background: rgba(16,185,129,.12);
  color: var(--clr-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  margin-top: 1px;
}

/* =============================================
   USE CASES
   ============================================= */
.use-cases { background: var(--clr-white); }
.use-cases__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.75rem;
}

.use-case-card {
  background: var(--clr-white);
  border: 1.5px solid #e2e8f0;
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.use-case-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--clr-primary-l);
}

.use-case-card__header {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.use-case-card__icon {
  font-size: 2.2rem;
  line-height: 1;
  flex-shrink: 0;
}
.use-case-card__title {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--clr-dark);
  line-height: 1.3;
}

.use-case-card__body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex-grow: 1;
}

.use-case-card__block {
  border-radius: var(--radius-md);
  padding: 0.9rem 1.1rem;
}
.use-case-card__block--cause   { background: rgba(239,68,68,.07);  border-left: 3px solid #ef4444; }
.use-case-card__block--layman  { background: rgba(245,158,11,.07); border-left: 3px solid #f59e0b; }
.use-case-card__block--solution{ background: rgba(14,165,233,.07); border-left: 3px solid var(--clr-primary); }

.use-case-card__label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}
.use-case-card__block--cause   .use-case-card__label { color: #ef4444; }
.use-case-card__block--layman  .use-case-card__label { color: #d97706; }
.use-case-card__block--solution .use-case-card__label { color: var(--clr-primary); }

.use-case-card__block p {
  font-size: 0.92rem;
  color: var(--clr-dark-3);
  line-height: 1.65;
  margin: 0;
}
.use-case-card__block p strong { color: var(--clr-dark); }

.use-case-card__link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--clr-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: gap var(--transition);
}
.use-case-card__link:hover { gap: 0.5rem; }

/* =============================================
   TEAM
   ============================================= */
.team { background: var(--clr-white); }
.team__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.75rem;
}
.team-card {
  background: var(--clr-white);
  border: 1.5px solid #e2e8f0;
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.team-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}
.team-card__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--clr-white);
  margin: 0 auto 1.2rem;
}
.team-card__avatar--1 { background: linear-gradient(135deg, #0ea5e9, #6366f1); }
.team-card__avatar--2 { background: linear-gradient(135deg, #10b981, #0ea5e9); }
.team-card__avatar--3 { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.team-card__avatar--4 { background: linear-gradient(135deg, #8b5cf6, #0ea5e9); }
.team-card__name {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}
.team-card__role {
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--clr-primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}
.team-card__bio {
  font-size: 0.88rem;
  color: var(--clr-muted);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}
.team-card__socials { display: flex; justify-content: center; gap: 0.75rem; }
.team-card__social {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--clr-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-muted);
  transition: background var(--transition), color var(--transition);
}
.team-card__social svg { width: 16px; height: 16px; }
.team-card__social:hover { background: var(--clr-primary); color: var(--clr-white); }

/* =============================================
   CONTACT
   ============================================= */
.contact { background: var(--clr-white); }
.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}
.contact__info .section-title { text-align: left; margin-bottom: 1rem; }
.contact__info p { color: var(--clr-muted); line-height: 1.8; margin-bottom: 2rem; }
.contact__details { display: flex; flex-direction: column; gap: 1.25rem; }
.contact__detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.contact__detail-icon {
  font-size: 1.3rem;
  margin-top: 2px;
  flex-shrink: 0;
}
.contact__detail strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--clr-dark);
  margin-bottom: 2px;
}
.contact__detail span, .contact__detail a {
  font-size: 0.9rem;
  color: var(--clr-muted);
}
.contact__detail a:hover { color: var(--clr-primary); }

.contact__form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--clr-dark);
}
.form-group label span { color: var(--clr-primary); }
.form-error {
  font-size: 0.78rem;
  color: #ef4444;
  min-height: 1.2em;
}
input.invalid, textarea.invalid, select.invalid { border-color: #ef4444; }
.form-success {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.3);
  color: #059669;
  border-radius: var(--radius-md);
  padding: 0.9rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 500;
}
.form-success:not([hidden]) { display: flex; }
.form-success.form-success--error {
  background: rgba(239, 68, 68, .1);
  border-color: rgba(239, 68, 68, .3);
  color: #b91c1c;
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
  background: var(--clr-dark);
  color: rgba(255,255,255,.7);
  padding-top: clamp(3rem, 6vw, 5rem);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 2fr;
  gap: clamp(2rem, 5vw, 4rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer__brand .nav__logo { color: var(--clr-white); margin-bottom: 1rem; }
.footer__brand p { font-size: 0.9rem; line-height: 1.7; max-width: 300px; margin-bottom: 1.5rem; }
.footer__socials { display: flex; gap: 0.75rem; }
.footer__social {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.07);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.6);
  transition: background var(--transition), color var(--transition);
}
.footer__social svg { width: 16px; height: 16px; }
.footer__social:hover { background: var(--clr-primary); color: var(--clr-white); }

.footer__links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.footer__col h4 {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--clr-white);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1.2rem;
}
.footer__col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer__col a, .footer__col li {
  font-size: 0.875rem;
  color: rgba(255,255,255,.55);
  transition: color var(--transition);
}
.footer__col a:hover { color: var(--clr-white); }

.footer__bottom {
  padding-block: 1.5rem;
  background: rgba(0,0,0,.2);
}
.footer__bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer__bottom p { font-size: 0.82rem; color: rgba(255,255,255,.4); }
.footer__legal { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer__legal a { font-size: 0.82rem; color: rgba(255,255,255,.4); transition: color var(--transition); }
.footer__legal a:hover { color: rgba(255,255,255,.8); }

/* =============================================
   EXPERTISE TABLE
   ============================================= */
.expertise-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-md);
  margin-top: 2.5rem;
}
.expertise-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  color: var(--clr-light);
  background: var(--clr-dark-2);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.expertise-table thead tr {
  background: var(--clr-primary);
  color: var(--clr-white);
}
.expertise-table th {
  padding: 1rem 1.25rem;
  text-align: left;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.expertise-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--clr-dark-3);
  vertical-align: top;
  line-height: 1.55;
}
.expertise-table tbody tr:last-child td { border-bottom: none; }
.expertise-table tbody tr:hover { background: rgba(14,165,233,.08); }
.expertise-table td strong { color: var(--clr-primary-l); }

#expertise .section-title { color: var(--clr-white); }
#expertise .section-subtitle { color: rgba(255,255,255,.65); }

/* =============================================
   BACK TO TOP
   ============================================= */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--clr-primary);
  color: var(--clr-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(14,165,233,.5);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
  z-index: 999;
}
.back-to-top svg { width: 20px; height: 20px; }
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover { background: var(--clr-primary-d); transform: translateY(-3px); }

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .hero__content { grid-template-columns: 1fr; }
  .hero__visual { display: none; }
  .about__inner { grid-template-columns: 1fr; }
  .about__visual { order: -1; }
  .contact__inner { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; }
  .footer__links { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .nav__menu {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(280px, 80vw);
    min-height: 100dvh;
    background: var(--clr-dark);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 5rem 1.5rem 2rem;
    gap: 0.5rem;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
    box-shadow: -4px 0 30px rgba(0,0,0,.5);
    z-index: 1001;
  }
  .nav__menu > li { width: 100%; }
  .nav__menu.open { transform: translateX(0); }
  .nav__link {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    text-align: left;
  }
  .nav__link--dropdown { width: 100%; padding: 0.75rem 1rem; font-size: 1rem; }
  .nav__toggle { display: flex; }
  .nav__dropdown-menu {
    position: static;
    box-shadow: none;
    background: rgba(255,255,255,.05);
    border-radius: var(--radius-sm);
    padding: 0.25rem 0;
    margin-top: 0.25rem;
  }
  .nav__dropdown-link { padding: 0.55rem 1.5rem; }

  .hero__title { font-size: clamp(2rem, 8vw, 2.8rem); }
  .form-row { grid-template-columns: 1fr; }
  .footer__links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .footer__links { grid-template-columns: 1fr 1fr; }
  .hero__actions { flex-direction: column; }
  .btn { justify-content: center; }
}

/* =============================================
   AUTH — Login button, Assessment link, Modal
   ============================================= */

.nav__link--assessment {
  color: var(--clr-primary) !important;
  font-weight: 600;
  border: 1.5px solid var(--clr-primary);
  border-radius: var(--radius-md);
  padding: 0.45rem 0.9rem;
}
.nav__link--assessment:hover {
  background: var(--clr-primary);
  color: var(--clr-white) !important;
}

.nav__btn--login,
.nav__btn--logout {
  color: rgba(255,255,255,.8);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.nav__btn--login:hover,
.nav__btn--logout:hover {
  color: var(--clr-white);
  background: rgba(255,255,255,.08);
}

/* Modal overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
  backdrop-filter: blur(3px);
}
.modal-overlay[hidden] { display: none; }

/* Modal card */
.modal {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 420px;
  position: relative;
  box-shadow: var(--shadow-xl);
  animation: modalIn 0.2s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(-16px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.35rem;
  border-radius: var(--radius-sm);
  color: var(--clr-muted);
  transition: color var(--transition), background var(--transition);
  line-height: 0;
}
.modal__close svg { width: 20px; height: 20px; }
.modal__close:hover { color: var(--clr-dark); background: var(--clr-light); }

.modal__logo { text-align: center; margin-bottom: 1rem; }
.modal__logo svg { width: 48px; height: 48px; display: inline-block; }

.modal__title {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 700;
  text-align: center;
  color: var(--clr-dark);
  margin-bottom: 0.25rem;
}

.modal__subtitle {
  text-align: center;
  color: var(--clr-muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.modal__form .form-group { margin-bottom: 1rem; }
.modal__form label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-dark);
  margin-bottom: 0.4rem;
}

.modal__error {
  color: #dc2626;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  text-align: center;
}
.modal__error[hidden] { display: none; }

@media (max-width: 768px) {
  .nav__link--assessment {
    display: block;
    font-size: 0.9rem;
    padding: 0.6rem 1rem;
    width: 100%;
    text-align: left;
  }
  .nav__btn--login,
  .nav__btn--logout {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    text-align: left;
  }
}

/* =============================================
   ASSESSMENT PROMO SECTION
   ============================================= */

.assessment-promo {
  background: var(--clr-dark);
  color: var(--clr-white);
}
.assessment-promo .section-tag { color: var(--clr-primary-l); }
.assessment-promo .section-title { color: var(--clr-white); }
.assessment-promo .section-subtitle { color: rgba(255,255,255,.7); }

.assessment-promo__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin: 2.5rem 0;
}

.assessment-promo__card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  text-align: center;
  transition: background var(--transition), border-color var(--transition);
}
.assessment-promo__card:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(14,165,233,.4);
}

.assessment-promo__icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
}

.assessment-promo__card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--clr-white);
  margin-bottom: 0.6rem;
}

.assessment-promo__card p {
  color: rgba(255,255,255,.65);
  font-size: 0.9rem;
  line-height: 1.7;
}

.assessment-promo__cta {
  text-align: center;
  margin-top: 1rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,.1);
}

.assessment-promo__cta p {
  color: rgba(255,255,255,.7);
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

.assessment-promo__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- Modal switch link ---- */
.modal__switch {
  text-align: center;
  margin-top: 1.25rem;
  font-size: 0.875rem;
  color: var(--clr-muted);
}

.modal__switch-link {
  color: var(--clr-primary);
  cursor: pointer;
  font-weight: 600;
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.modal__switch-link:hover { color: var(--clr-primary-d); }

/* ---- Modal success message ---- */
.modal__success {
  color: #059669;
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
  text-align: center;
  font-weight: 500;
}
.modal__success[hidden] { display: none; }

/* ---- Form hint ---- */
.form-hint {
  display: block;
  font-size: 0.78rem;
  color: var(--clr-muted);
  margin-top: 0.3rem;
}

@media (max-width: 480px) {
  .assessment-promo__actions { flex-direction: column; align-items: center; }
  .assessment-promo__actions .btn { width: 100%; justify-content: center; }
}