/* ==========================================================================
   OVANTA ENTERPRISE — Shared Components
   ========================================================================== */

/* ---------- Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  padding: .95rem 1.9rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: var(--step--1);
  letter-spacing: .01em;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), background var(--dur-fast);
  isolation: isolate;
}
.btn svg { width: 18px; height: 18px; flex-shrink: 0; transition: transform var(--dur-fast) var(--ease-out); }
.btn:hover svg { transform: translateX(3px); }

.btn-primary {
  background: var(--gradient-blue);
  color: var(--white);
  box-shadow: var(--shadow-navy);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 26px 60px -14px rgba(0,23,86,.55); }
.btn-primary:active { transform: translateY(-1px); }

.btn-accent {
  background: var(--gradient-green);
  color: var(--white);
  box-shadow: 0 16px 40px -12px rgba(30,102,28,.5);
}
.btn-accent:hover { transform: translateY(-3px); box-shadow: 0 22px 50px -12px rgba(30,102,28,.6); }

.btn-ghost {
  background: var(--white);
  color: var(--navy-900);
  border: 1.5px solid var(--slate-200);
}
.btn-ghost:hover { border-color: var(--blue-700); color: var(--blue-700); transform: translateY(-2px); }

.btn-outline-light {
  background: rgba(255,255,255,.08);
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,.35);
  backdrop-filter: blur(6px);
}
.btn-outline-light:hover { background: rgba(255,255,255,.18); border-color: var(--white); transform: translateY(-2px); }

.btn-sm { padding: .7rem 1.4rem; font-size: .82rem; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  padding-block: 1.4rem;
  transition: padding var(--dur-fast) var(--ease-out), background var(--dur-fast), box-shadow var(--dur-fast);
}
.site-header::before {
  content: '';
  position: absolute; inset: 0;
  background: rgba(255,255,255,0);
  backdrop-filter: blur(0px);
  transition: background var(--dur-fast), backdrop-filter var(--dur-fast);
  z-index: -1;
}
.site-header.is-scrolled {
  padding-block: .8rem;
}
.site-header.is-scrolled::before {
  background: rgba(0,23,86,.5);
  backdrop-filter: blur(14px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: .4rem .8rem .4rem .5rem;
  background: rgba(255,255,255,.97);
  border-radius: var(--radius-md);
  box-shadow: 0 6px 20px rgba(0,0,0,.14);
  transition: background var(--dur-fast), box-shadow var(--dur-fast), padding var(--dur-fast);
}
.brand img {
  height: 56px; width: auto;
  transition: height var(--dur-fast);
}
@media (max-width: 640px) { .brand img { height: 42px; } }
.site-header.is-scrolled .brand img {
  height: 48px;
}
@media (max-width: 640px) { .site-header.is-scrolled .brand img { height: 42px; } }

.main-nav { display: flex; align-items: center; gap: 1.5rem; }
.main-nav a {
  position: relative;
  font-size: .87rem;
  font-weight: 600;
  color: var(--white);
  padding-block: .3rem;
  white-space: nowrap;
  transition: color var(--dur-fast);
}
.main-nav a::after {
  content: '';
  position: absolute; left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--gradient-green);
  border-radius: 2px;
  transition: width var(--dur-fast) var(--ease-out);
}
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }
.main-nav a.active { color: var(--green-500); font-weight: 700; }

.header-actions { display: flex; align-items: center; gap: 1.1rem; }

/* ---------- Nav dropdown (Solutions) ---------- */
.nav-item-dropdown { position: relative; }
.nav-item-dropdown > a { display: flex; align-items: center; gap: .35rem; }
.nav-item-dropdown > a svg.caret { width: 12px; height: 12px; transition: transform var(--dur-fast) var(--ease-out); }
.nav-item-dropdown:hover > a svg.caret, .nav-item-dropdown.is-open > a svg.caret { transform: rotate(180deg); }
.dropdown-panel {
  position: absolute;
  top: calc(100% + 1.1rem);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 300px;
  background: var(--white);
  border: 1px solid var(--slate-100);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: .8rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), visibility var(--dur-fast);
  z-index: 40;
}
.nav-item-dropdown:hover .dropdown-panel,
.nav-item-dropdown.is-open .dropdown-panel {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.dropdown-panel a {
  display: flex; align-items: center; gap: .8rem;
  padding: .75rem .85rem;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  color: var(--navy-900);
}
.dropdown-panel a::after { display: none; }
.dropdown-panel a:hover { background: var(--surface-alt); color: var(--blue-700); }
.dropdown-panel a .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--gradient-green);
  flex-shrink: 0;
}
@media (max-width: 1180px) {
  .dropdown-panel {
    position: static;
    transform: none;
    opacity: 1; visibility: visible;
    box-shadow: none; border: none;
    background: transparent;
    max-height: 0;
    overflow: hidden;
    padding: 0;
    transition: max-height var(--dur-med) var(--ease-in-out);
  }
  .nav-item-dropdown.is-open .dropdown-panel { max-height: 400px; padding: .5rem 0 0; }
  .dropdown-panel a { color: rgba(255,255,255,.8); font-size: var(--step-0); padding: .55rem 0; justify-content: center; }
  .dropdown-panel a:hover { background: transparent; color: var(--white); }
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 30px;
  z-index: 1001;
}
.nav-toggle span {
  height: 2.5px;
  width: 100%;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast), background var(--dur-fast);
}
.nav-toggle.is-open span { background: var(--white); }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Page hero band (inner pages) ---------- */
.page-hero {
  position: relative;
  padding-top: calc(var(--header-h, 100px) + 1.75rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  background: var(--gradient-blue);
  overflow: hidden;
  isolation: isolate;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 85% 20%, rgba(128,175,34,.28), transparent 45%),
    radial-gradient(circle at 10% 90%, rgba(128,175,34,.16), transparent 40%);
  z-index: -1;
}
.page-hero .breadcrumb {
  display: flex; align-items: center; gap: .5rem;
  font-size: .82rem; font-weight: 600;
  color: rgba(255,255,255,.65);
  text-transform: uppercase; letter-spacing: .08em;
  margin-bottom: 1.2rem;
}
.page-hero .breadcrumb a:hover { color: var(--white); }
.page-hero h1 {
  color: var(--white);
  max-width: 16ch;
  font-size: clamp(1.9rem, 1.5rem + 1.8vw, 2.8rem);
  line-height: 1.18;
}
.page-hero p.lead {
  margin-top: 1.1rem;
  max-width: 52ch;
  color: rgba(255,255,255,.78);
  font-size: var(--step-1);
}

/* ---------- Cards ---------- */
.card {
  background: var(--white);
  border: 1px solid var(--slate-100);
  border-radius: var(--radius-md);
  padding: 2.1rem 1.9rem;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), border-color var(--dur-fast);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.card .icon-tile { margin-bottom: 1.3rem; }
.card h3, .card h4 { margin-bottom: .6rem; }
.card p { font-size: .96rem; }

.icon-tile {
  width: 56px; height: 56px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  background: var(--gradient-blue);
  box-shadow: 0 10px 24px -8px rgba(3,59,127,.45);
  transition: transform var(--dur-fast) var(--ease-out);
}
.icon-tile.green { background: var(--gradient-green); box-shadow: 0 10px 24px -8px rgba(30,102,28,.45); }
.icon-tile svg { width: 26px; height: 26px; stroke: var(--white); }
.card:hover .icon-tile { transform: scale(1.08) rotate(-4deg); }

/* ---------- Grids ---------- */
.grid {
  display: grid;
  gap: 1.6rem;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ---------- Section header ---------- */
.section-head { max-width: 640px; margin-bottom: 3rem; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head h2 { margin-top: .7rem; }
.section-head p { margin-top: 1rem; font-size: var(--step-0); }

/* ---------- Stats ---------- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
@media (max-width: 780px) { .stat-row { grid-template-columns: repeat(2, 1fr); } }
.stat {
  text-align: center;
  padding: 1.8rem 1rem;
}
.stat .num {
  font-family: var(--font-display);
  font-size: var(--step-4);
  font-weight: 600;
  background: var(--gradient-green);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  line-height: 1;
}
.stat .label { margin-top: .6rem; font-size: .85rem; font-weight: 600; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .06em; }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  border-radius: var(--radius-lg);
  padding: clamp(2.5rem, 6vw, 4.5rem);
  background: var(--gradient-blue);
  overflow: hidden;
  isolation: isolate;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.cta-band::before {
  content: '';
  position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(circle at 90% 10%, rgba(128,175,34,.35), transparent 50%);
}
.cta-band h2, .cta-band h3 { color: var(--white); max-width: 22ch; }
.cta-band p { color: rgba(255,255,255,.75); margin-top: .6rem; max-width: 42ch; }
.cta-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-900);
  color: var(--slate-300);
  padding-block: clamp(2.5rem, 5vw, 3.5rem) 1.5rem;
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 15% 0%, rgba(3,59,127,.6), transparent 55%);
  z-index: 0;
}
.footer-inner { position: relative; z-index: 1; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-brand img { height: 56px; margin-bottom: 1.1rem; filter: brightness(0) invert(1); }
.footer-brand p { color: var(--slate-400); font-size: .92rem; max-width: 30ch; }
.footer-social { display: flex; gap: .7rem; margin-top: 1.4rem; }
.footer-social a {
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(255,255,255,.06);
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,.12);
  transition: background var(--dur-fast), transform var(--dur-fast);
}
.footer-social a:hover { background: var(--gradient-green); transform: translateY(-3px); }
.footer-social svg { width: 16px; height: 16px; stroke: var(--white); }

.footer-col h4 { color: var(--white); font-size: .9rem; letter-spacing: .05em; text-transform: uppercase; margin-bottom: 1.3rem; }
.footer-col ul { display: flex; flex-direction: column; gap: .75rem; }
.footer-col a { font-size: .92rem; color: var(--slate-400); transition: color var(--dur-fast), padding var(--dur-fast); }
.footer-col a:hover { color: var(--white); padding-left: 4px; }
.footer-col .contact-line { display: flex; gap: .7rem; align-items: flex-start; font-size: .92rem; color: var(--slate-400); }
.footer-col .contact-line svg { width: 17px; height: 17px; flex-shrink: 0; margin-top: 3px; stroke: var(--green-500); }

.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 1.8rem; flex-wrap: wrap; gap: 1rem;
  font-size: .82rem; color: rgba(255,255,255,.62);
  position: relative; z-index: 1;
}
.footer-bottom .legal-links { display: flex; gap: 1.5rem; }
.footer-bottom .legal-links a { color: rgba(255,255,255,.62); }
.footer-bottom .legal-links a:hover { color: var(--white); }

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  bottom: 2rem; right: 2rem;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--gradient-blue);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-navy);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity var(--dur-fast), transform var(--dur-fast), visibility var(--dur-fast), bottom var(--dur-fast) var(--ease-out);
  z-index: 800;
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top svg { width: 20px; height: 20px; stroke: var(--white); }
.back-to-top:hover { transform: translateY(-4px); }

/* ---------- Scroll reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
[data-reveal-delay="1"] { transition-delay: .1s; }
[data-reveal-delay="2"] { transition-delay: .2s; }
[data-reveal-delay="3"] { transition-delay: .3s; }
[data-reveal-delay="4"] { transition-delay: .4s; }
[data-reveal-delay="5"] { transition-delay: .5s; }

/* ---------- Accordion (FAQ) ---------- */
.accordion-item {
  border-bottom: 1px solid var(--slate-200);
}
.accordion-trigger {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem;
  padding: 1.6rem 0;
  text-align: left;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--step-0);
  color: var(--navy-900);
}
.accordion-trigger .chevron {
  flex-shrink: 0;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--slate-50);
  display: flex; align-items: center; justify-content: center;
  transition: transform var(--dur-fast) var(--ease-out), background var(--dur-fast);
}
.accordion-trigger .chevron svg { width: 16px; height: 16px; transition: transform var(--dur-fast) var(--ease-out); }
.accordion-item.is-open .accordion-trigger .chevron { background: var(--gradient-green); }
.accordion-item.is-open .accordion-trigger .chevron svg { stroke: var(--white); transform: rotate(180deg); }
.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur-med) var(--ease-in-out);
}
.accordion-panel .inner { padding-bottom: 1.7rem; max-width: 68ch; }
.accordion-panel p { font-size: .96rem; }

/* ---------- Timeline (Our Process) ---------- */
.timeline { position: relative; max-width: 780px; margin-inline: auto; }
.timeline-track {
  position: absolute;
  left: 27px; top: 0; bottom: 0;
  width: 2px;
  background: var(--slate-200);
}
.timeline-progress {
  position: absolute; left: 27px; top: 0; width: 2px; height: 0%;
  background: var(--gradient-green);
  border-radius: 2px;
  transition: height .2s linear;
}
.timeline-item {
  position: relative;
  padding-left: 5rem;
  padding-bottom: 3.2rem;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-marker {
  position: absolute; left: 0; top: 0;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--slate-200);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--slate-400);
  transition: all var(--dur-med) var(--ease-out);
  z-index: 1;
}
.timeline-item.is-active .timeline-marker {
  background: var(--gradient-green);
  border-color: transparent;
  color: var(--white);
  box-shadow: 0 10px 26px -8px rgba(30,102,28,.5);
}
.timeline-content h3 { margin-bottom: .5rem; font-size: var(--step-1); }
.timeline-content p { font-size: .95rem; max-width: 52ch; }
.timeline-step-no { font-size: .78rem; font-weight: 700; letter-spacing: .1em; color: var(--green-700); text-transform: uppercase; margin-bottom: .3rem; display: block; }

/* ---------- Forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: .5rem; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .84rem; font-weight: 700; color: var(--navy-900); }
.field input, .field select, .field textarea {
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-sm);
  padding: .85rem 1.1rem;
  background: var(--white);
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--blue-700);
  box-shadow: 0 0 0 4px rgba(3,59,127,.1);
}
.field textarea { resize: vertical; min-height: 130px; }
.field .error-msg { font-size: .78rem; color: #c0392b; min-height: 1em; }
.field.has-error input, .field.has-error textarea, .field.has-error select { border-color: #c0392b; }
.form-note { font-size: .82rem; color: var(--ink-soft); }
.form-success {
  display: none;
  align-items: center;
  gap: .8rem;
  padding: 1.2rem 1.4rem;
  border-radius: var(--radius-sm);
  background: rgba(128,175,34,.12);
  border: 1px solid rgba(128,175,34,.35);
  color: var(--green-700);
  font-weight: 600;
  font-size: .92rem;
}
.form-success.is-visible { display: flex; }
.form-success svg { width: 20px; height: 20px; stroke: var(--green-700); flex-shrink: 0; }
.form-error {
  display: none;
  align-items: center;
  gap: .8rem;
  padding: 1.2rem 1.4rem;
  border-radius: var(--radius-sm);
  background: rgba(192,57,43,.10);
  border: 1px solid rgba(192,57,43,.3);
  color: #c0392b;
  font-weight: 600;
  font-size: .92rem;
}
.form-error.is-visible { display: flex; }
.form-error svg { width: 20px; height: 20px; stroke: #c0392b; flex-shrink: 0; }

/* ---------- Badges / pills ---------- */
.pill {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .5rem 1rem;
  border-radius: var(--radius-full);
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  font-size: .82rem; font-weight: 600;
  color: var(--navy-900);
}
.pill svg { width: 15px; height: 15px; stroke: var(--green-700); }

/* ---------- Check list ---------- */
.check-list { display: flex; flex-direction: column; gap: 1rem; }
.check-list li { display: flex; align-items: flex-start; gap: .8rem; font-size: .96rem; color: var(--ink-soft); }
.check-list .check-icon {
  flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%;
  background: var(--gradient-green);
  display: flex; align-items: center; justify-content: center;
  margin-top: 1px;
}
.check-list .check-icon svg { width: 13px; height: 13px; stroke: var(--white); stroke-width: 3; }

/* ---------- Mobile nav overlay ---------- */
@media (max-width: 1180px) {
  .main-nav {
    position: fixed;
    inset: 0;
    background: var(--gradient-blue);
    flex-direction: column;
    justify-content: center;
    gap: 0;
    transform: translateX(100%);
    transition: transform var(--dur-med) var(--ease-in-out);
    z-index: 950;
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav a { color: var(--white); font-size: var(--step-2); padding: .9rem 0; opacity: 0; transform: translateY(14px); transition: opacity .4s var(--ease-out), transform .4s var(--ease-out); }
  .main-nav.is-open a { opacity: 1; transform: translateY(0); }
  .main-nav a:nth-child(1) { transition-delay: .05s; }
  .main-nav a:nth-child(2) { transition-delay: .1s; }
  .main-nav a:nth-child(3) { transition-delay: .15s; }
  .main-nav a:nth-child(4) { transition-delay: .2s; }
  .main-nav a:nth-child(5) { transition-delay: .25s; }
  .main-nav a:nth-child(6) { transition-delay: .3s; }
  .main-nav a:nth-child(7) { transition-delay: .35s; }
  .main-nav a:nth-child(8) { transition-delay: .4s; }
  .main-nav a:nth-child(9) { transition-delay: .45s; }
  .main-nav a:nth-child(10) { transition-delay: .5s; }
  .main-nav .nav-cta { margin-top: 1.5rem; }
  .nav-toggle { display: flex; }
  .header-actions .btn-primary.desktop-only { display: none; }
}