/* --- Variables & Reset --- */
:root {
    /* Light Theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f4f6f8;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --accent: #0f766e; /* Teal */
    --accent-hover: #115e59;
    --border: #e2e8f0;
    --card-bg: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    --font-main: 'Manrope', sans-serif;
}

[data-theme="dark"] {
    /* Dark Theme */
    --bg-primary: #0f172a; /* Midnight Blue */
    --bg-secondary: #1e293b;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --accent: #2dd4bf; 
    --accent-hover: #14b8a6;
    --border: #334155;
    --card-bg: #1e293b;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-main);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; margin-bottom: 1rem; }
p { margin-bottom: 1.5rem; color: var(--text-muted); }
a { text-decoration: none; color: inherit; transition: 0.2s; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.section-padding { padding: 5rem 0; }
.bg-alt { background-color: var(--bg-secondary); }

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
}
.btn--primary { background-color: var(--accent); color: #fff; }
.btn--primary:hover { background-color: var(--accent-hover); }
.btn--outline { border-color: var(--border); color: var(--text-main); }
.btn--outline:hover { border-color: var(--accent); color: var(--accent); }

.badge {
    display: inline-block;
    font-size: 0.85rem; font-weight: 600; color: var(--accent);
    text-transform: uppercase; letter-spacing: 1px; margin-bottom: 1rem;
}

.section-title { font-size: 2.25rem; margin-bottom: 1.5rem; }
.section-subtitle { color: var(--accent); font-weight: 600; margin-bottom: 0.5rem; }
.center-text { text-align: center; }

/* --- Header --- */
.header {
    position: fixed; top: 0; width: 100%;
    background-color: rgba(var(--bg-primary), 0.9);
    backdrop-filter: blur(10px); z-index: 1000;
    border-bottom: 1px solid var(--border); padding: 1rem 0;
}
.header__inner { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 700; }
.dot { color: var(--accent); }
.nav__list { display: flex; gap: 2rem; }
.nav__list a:hover { color: var(--accent); }
.header__actions { display: flex; align-items: center; gap: 1rem; }

#theme-toggle {
    background: none; border: none; cursor: pointer;
    font-size: 1.2rem; color: var(--text-main);
}
[data-theme="light"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: none; }
.mobile-menu-btn { display: none; }

/* --- Hero --- */
.hero { padding: 8rem 0 5rem; }
.hero__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.hero__title { font-size: 3.5rem; letter-spacing: -1px; }
.hero__text { font-size: 1.125rem; max-width: 500px; }
.hero__buttons { display: flex; gap: 1rem; }

.code-card {
    background: #1e293b; border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
    overflow: hidden; font-family: monospace;
    transform: rotate(-2deg); transition: transform 0.3s;
}
.code-card:hover { transform: rotate(0deg); }
.code-header { background: #334155; padding: 0.75rem; display: flex; gap: 0.5rem; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.red { background: #ef4444; } .yellow { background: #f59e0b; } .green { background: #10b981; }
.code-body { padding: 1.5rem; color: #f8fafc; font-size: 0.9rem; }
.c-purple { color: #c084fc; } .c-blue { color: #60a5fa; } .c-green { color: #4ade80; }

/* --- Cards --- */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.card {
    background: var(--card-bg); padding: 2rem;
    border-radius: 8px; border: 1px solid var(--border);
    transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }

/* --- Services --- */
.split-layout { display: grid; grid-template-columns: 1fr 1.5fr; gap: 4rem; }
.sticky-content { position: sticky; top: 6rem; height: fit-content; }
.tech-stack-list { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tech-stack-list li {
    background: var(--bg-primary); border: 1px solid var(--border);
    padding: 0.25rem 0.75rem; border-radius: 20px; font-size: 0.85rem;
}
.service-item {
    background: var(--bg-primary); padding: 2.5rem;
    border-radius: 12px; margin-bottom: 2rem;
    border: 1px solid var(--border); position: relative;
}
.service-number {
    font-size: 4rem; font-weight: 800; color: var(--bg-secondary);
    position: absolute; top: 1rem; right: 1.5rem; opacity: 0.5;
}
.check-list li { position: relative; padding-left: 1.5rem; margin-bottom: 0.5rem; font-size: 0.95rem; }
.check-list li::before { content: "✓"; color: var(--accent); position: absolute; left: 0; }

/* --- Process --- */
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; margin-top: 3rem; }
.step { position: relative; }
.step-icon {
    width: 50px; height: 50px; background: var(--accent); color: white;
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-weight: 700; margin-bottom: 1rem;
}
.step:not(:last-child)::after {
    content: ""; position: absolute; top: 25px; left: 60px; right: -20px;
    height: 2px; background: var(--border); z-index: -1;
}

/* --- FAQ --- */
details { background: var(--bg-primary); border: 1px solid var(--border); border-radius: 8px; margin-bottom: 1rem; }
summary { padding: 1.5rem; cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; }
summary::after { content: "+"; font-size: 1.5rem; }
details[open] summary::after { content: "-"; }
details p { padding: 0 1.5rem 1.5rem; margin-bottom: 0; }

/* --- Contact --- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; }
.contact-form { background: var(--bg-secondary); padding: 2rem; border-radius: 12px; }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; font-size: 0.9rem; }
.form-group input, .form-group textarea {
    width: 100%; padding: 0.75rem; border: 1px solid var(--border);
    border-radius: 6px; background: var(--bg-primary); color: var(--text-main); font-family: inherit;
}
.full-width { width: 100%; }
.form-note { font-size: 0.8rem; margin-top: 1rem; text-align: center; }

/* --- Footer --- */
.footer { border-top: 1px solid var(--border); padding: 3rem 0; font-size: 0.9rem; }
.footer__inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 2rem; }

/* --- Mobile --- */
@media (max-width: 900px) {
    .hero__grid, .split-layout, .contact-grid { grid-template-columns: 1fr; }
    .hero { padding-top: 6rem; text-align: center; }
    .hero__content { margin: 0 auto; }
    .hero__buttons { justify-content: center; }
    .hero__visual { display: none; }
    .sticky-content { position: static; margin-bottom: 2rem; }
    .process-steps { grid-template-columns: 1fr; gap: 1rem; }
    .step::after { display: none; }
    .step { display: flex; align-items: flex-start; gap: 1rem; }
    
    .nav {
        position: fixed; top: 70px; left: 0; right: 0;
        background: var(--bg-primary); border-bottom: 1px solid var(--border);
        padding: 2rem; transform: translateY(-150%); transition: transform 0.3s ease;
    }
    .nav.active { transform: translateY(0); }
    .nav__list { flex-direction: column; text-align: center; }
    .mobile-menu-btn {
        display: block; background: none; border: none; width: 30px; height: 20px; position: relative;
    }
    .mobile-menu-btn span {
        position: absolute; width: 100%; height: 2px; background: var(--text-main); left: 0;
    }
    .mobile-menu-btn span:nth-child(1) { top: 0; }
    .mobile-menu-btn span:nth-child(2) { top: 9px; }
    .mobile-menu-btn span:nth-child(3) { top: 18px; }
}

/* --- Accessibility --- */
.skip-link{
  position:absolute; left:-999px; top:0;
  background: var(--card-bg); color: var(--text-main);
  padding: .75rem 1rem; border:1px solid var(--border); border-radius: 10px;
  box-shadow: var(--shadow); z-index: 9999;
}
.skip-link:focus{ left: 1rem; top: 1rem; }

/* --- Alerts (Forms) --- */
.form-alert{ 
  display:block; 
  padding: 0.9rem 1rem; 
  border-radius: 12px; 
  margin-bottom: 1rem; 
  border: 1px solid var(--border);
}
.form-alert--success{ background: color-mix(in srgb, var(--accent) 18%, var(--card-bg)); }
.form-alert--error{ background: color-mix(in srgb, #ef4444 16%, var(--card-bg)); }

/* Honeypot */
.hp-field{ position:absolute; left:-9999px; width:1px; height:1px; overflow:hidden; }

/* --- Hero add-ons --- */
.hero__trust{
  display:flex; flex-wrap:wrap; align-items:center;
  gap:.5rem; margin: 1rem 0 0;
  color: var(--text-muted); font-size: 0.95rem;
}
.trust-dot{ opacity:.6; }
.hero__metrics{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: .75rem;
  margin-top: 1.25rem;
}
.metric{
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: .85rem .9rem;
  box-shadow: var(--shadow);
}
.metric__value{ display:block; font-weight:800; letter-spacing:-0.02em; }
.metric__label{ display:block; color: var(--text-muted); font-size: .9rem; margin-top:.1rem; }

/* Legal pages */
.legal{
  max-width: 860px;
}


:focus-visible{ outline: 3px solid color-mix(in srgb, var(--accent) 65%, transparent); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce){
  *{ scroll-behavior:auto !important; transition:none !important; animation:none !important; }
}

.link-underline{ text-decoration: underline; text-underline-offset: 3px; }