/* ==== LK Teknoloji – kurumsal stiller ==== */
:root {
    --brand: #015927;
    --brand-600: #01471f;
    --brand-700: #013517;
    --brand-50: #eef6f1;
    --brand-100: #d6eadd;
    --ink: #13201a;
    --muted: #5b6b63;
    --line: #e3ebe6;
    --radius: 16px;
}

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
    font-family: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: var(--ink);
    background: #fff;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--brand); }
a:hover { color: var(--brand-600); }

h1, h2, h3 { font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); }
h3 { font-size: 1.2rem; font-weight: 700; }

.text-brand { color: var(--brand); }

/* ---- Butonlar ---- */
.btn-brand {
    background: var(--brand);
    border: 1px solid var(--brand);
    color: #fff;
    font-weight: 600;
    border-radius: 999px;
    padding-inline: 1.4rem;
}
.btn-brand:hover, .btn-brand:focus { background: var(--brand-600); border-color: var(--brand-600); color: #fff; }

.btn-outline-brand {
    border: 1.5px solid var(--brand);
    color: var(--brand);
    font-weight: 600;
    border-radius: 999px;
    padding-inline: 1.4rem;
    background: transparent;
}
.btn-outline-brand:hover { background: var(--brand); color: #fff; }

.btn:focus-visible, .form-control:focus, .form-select:focus, .form-check-input:focus {
    box-shadow: 0 0 0 .25rem rgba(1, 89, 39, .25);
    border-color: var(--brand);
}
.form-check-input:checked { background-color: var(--brand); border-color: var(--brand); }

/* ---- Üst menü ---- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: saturate(180%) blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color .2s, box-shadow .2s;
}
.site-header.scrolled { border-bottom-color: var(--line); box-shadow: 0 4px 20px rgba(1, 53, 23, .06); }
.site-header .navbar { padding-block: .7rem; }
.site-header .navbar-toggler { border-color: var(--line); border-radius: 10px; }
.site-header .navbar-toggler:focus { box-shadow: 0 0 0 .2rem rgba(1, 89, 39, .25); }

.brand-text { font-size: 1.15rem; color: var(--brand); font-weight: 600; letter-spacing: .01em; }
.brand-text strong { font-weight: 800; }

.site-header .nav-link { color: var(--ink); font-weight: 500; padding-inline: .9rem !important; }
.site-header .nav-link:hover { color: var(--brand); }

@media (max-width: 991.98px) {
    .site-header .navbar-nav { padding-block: .75rem; align-items: stretch !important; }
    .site-header .nav-item.ms-lg-2 { margin-top: .5rem; }
}

/* ---- Hero ---- */
.hero {
    position: relative;
    padding: clamp(3rem, 8vw, 6.5rem) 0 clamp(3rem, 7vw, 5.5rem);
    background:
        radial-gradient(900px 500px at 85% 20%, var(--brand-50), transparent 70%),
        linear-gradient(180deg, #fff, #f7fbf8);
    overflow: hidden;
}
.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    line-height: 1.08;
    margin: 1rem 0 1.25rem;
}
.hero-lead { font-size: 1.15rem; color: var(--muted); max-width: 38rem; margin-bottom: 2rem; }

.hero-points {
    list-style: none;
    padding: 0;
    margin: 2rem 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: .5rem 1.5rem;
    color: var(--muted);
    font-size: .95rem;
}
.hero-points li::before { content: "✓"; color: var(--brand); font-weight: 800; margin-right: .45rem; }

.hero-mark {
    position: relative;
    display: inline-grid;
    place-items: center;
    width: min(100%, 400px);
    aspect-ratio: 1;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 30px 80px rgba(1, 53, 23, .12), inset 0 0 0 1px var(--line);
}
.hero-mark img { width: 78%; height: auto; }

.eyebrow {
    display: inline-block;
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: var(--brand);
    background: var(--brand-50);
    padding: .35rem .8rem;
    border-radius: 999px;
}
.eyebrow-light { background: rgba(255, 255, 255, .12); color: #fff; }

/* ---- Bölümler ---- */
.section { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.section-tint { background: #f6faf7; }
.section-head { text-align: center; max-width: 42rem; margin: 0 auto 3rem; }
.section-head h2 { margin: .9rem 0 .75rem; }
.section-head p { color: var(--muted); font-size: 1.05rem; }

/* ---- Çözüm kartları ---- */
.solution-card {
    height: 100%;
    padding: 2rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    transition: transform .2s, box-shadow .2s, border-color .2s;
}
.solution-card:hover { transform: translateY(-4px); box-shadow: 0 20px 50px rgba(1, 53, 23, .1); border-color: var(--brand-100); }
.solution-card.featured { border: 2px solid var(--brand); box-shadow: 0 20px 50px rgba(1, 53, 23, .1); }
.solution-card h3 { margin: 1.1rem 0 .6rem; }
.solution-card p { color: var(--muted); }

.solution-icon {
    width: 56px; height: 56px;
    border-radius: 14px;
    display: grid; place-items: center;
    background: var(--brand-50);
}
.solution-card.featured .solution-icon { background: var(--brand); }
.solution-icon svg { width: 28px; height: 28px; fill: none; stroke: var(--brand); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.solution-card.featured .solution-icon svg { stroke: #fff; }

.badge-core {
    display: inline-block;
    margin-top: 1rem;
    font-size: .75rem;
    font-weight: 700;
    color: var(--brand);
    background: var(--brand-50);
    padding: .25rem .6rem;
    border-radius: 6px;
}
.badge-core + h3 { margin-top: .6rem; }

.check-list { list-style: none; padding: 0; margin: 1.25rem 0 0; }
.check-list li { position: relative; padding-left: 1.6rem; margin-bottom: .55rem; }
.check-list li::before {
    content: "";
    position: absolute; left: 0; top: .45em;
    width: .95rem; height: .95rem;
    border-radius: 50%;
    background: var(--brand-100) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='m4 8.5 2.5 2.5L12 5.5' fill='none' stroke='%23015927' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/80% no-repeat;
}

/* ---- Neden biz ---- */
.feature { height: 100%; padding: 1.75rem; background: #fff; border-radius: var(--radius); border: 1px solid var(--line); }
.feature-num { font-size: 2rem; font-weight: 800; color: var(--brand-100); line-height: 1; margin-bottom: 1rem; }
.feature h3 { margin-bottom: .5rem; }
.feature p { color: var(--muted); margin: 0; }

/* ---- Süreç ---- */
.steps {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    counter-reset: step;
}
@media (min-width: 576px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 992px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.steps li { position: relative; padding: 1.75rem 1.5rem 1.5rem; border-top: 3px solid var(--brand); background: #fff; }
.steps li::before {
    counter-increment: step;
    content: counter(step);
    display: grid; place-items: center;
    width: 2.25rem; height: 2.25rem;
    border-radius: 50%;
    background: var(--brand);
    color: #fff;
    font-weight: 800;
    margin-bottom: 1rem;
}
.steps p { color: var(--muted); margin: .4rem 0 0; }

/* ---- Hakkımızda ---- */
.section-brand {
    background:
        radial-gradient(700px 400px at 10% 50%, rgba(255, 255, 255, .08), transparent 70%),
        var(--brand);
    color: #e6f2ea;
}
.section-brand h2 { color: #fff; margin: .9rem 0 1.25rem; }
.section-brand p { font-size: 1.08rem; line-height: 1.7; }
.about-mark { width: min(70%, 260px); height: auto; opacity: .95; }

/* ---- İletişim ---- */
.contact-list { list-style: none; padding: 0; margin: 0; }
.contact-list li { padding: 1rem 0; border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: .15rem; }
.contact-list li:first-child { border-top: 1px solid var(--line); }
.contact-label { font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.contact-list a { font-weight: 600; text-decoration: none; }

.form-card {
    padding: clamp(1.5rem, 4vw, 2.5rem);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
    box-shadow: 0 20px 60px rgba(1, 53, 23, .08);
}
.form-label { font-weight: 600; font-size: .92rem; }
.form-control, .form-select { border-radius: 10px; padding: .7rem .9rem; border-color: #d5dfd9; }
.input-validation-error { border-color: #dc3545 !important; }
.form-error.validation-summary-valid { display: none; }
.form-error ul { margin: 0; padding-left: 1.1rem; }

/* ---- Yasal sayfalar ---- */
.page-narrow .container { max-width: 760px; }
.page-narrow h1 { margin-top: 1rem; font-size: clamp(2rem, 4vw, 2.6rem); }
.page-narrow h2 { font-size: 1.25rem; margin-top: 2rem; }
.page-narrow p { color: #33423a; line-height: 1.75; }

/* ---- Alt bilgi ---- */
.site-footer { background: var(--brand-700); color: #cfe2d6; padding: 4rem 0 1.5rem; }
.footer-title { color: #fff; font-weight: 700; margin-bottom: 1rem; }
.footer-muted { color: #a9c7b4; }
.footer-links li { margin-bottom: .55rem; }
.footer-links a { color: #cfe2d6; text-decoration: none; }
.footer-links a:hover { color: #fff; }
.footer-bottom {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, .12);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: .75rem;
    font-size: .9rem;
    color: #a9c7b4;
}
.footer-bottom a { color: #cfe2d6; text-decoration: none; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .solution-card { transition: none; }
    .solution-card:hover { transform: none; }
}