/* ===== Bilgica — Modern Corporate Theme ===== */

:root {
    --navy:        #0a2540;
    --navy-deep:   #061a2f;
    --navy-light:  #1a4480;
    --accent:      #2563eb;
    --accent-dark: #1d4ed8;
    --bg:          #ffffff;
    --bg-soft:     #f8fafc;
    --bg-section:  #f1f5f9;
    --text:        #0a2540;
    --muted:       #64748b;
    --border:      #e2e8f0;
    --radius:      8px;
    --radius-lg:   16px;
    --shadow-sm:   0 1px 3px rgba(10,37,64,0.06);
    --shadow-md:   0 8px 24px rgba(10,37,64,0.08);
    --shadow-lg:   0 20px 40px rgba(10,37,64,0.12);
    --font:        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ===== Base ===== */
* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dark); }

/* ===== Navbar ===== */
.navbar {
    background: var(--navy) !important;
    padding: 1rem 0;
    box-shadow: 0 2px 16px rgba(10,37,64,0.15);
}

.navbar-brand {
    color: #fff !important;
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    text-transform: uppercase;
}

.navbar-brand::after {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    margin-left: 4px;
    transform: translateY(-6px);
}

.navbar .nav-link {
    color: rgba(255,255,255,0.75) !important;
    font-size: 0.92rem;
    font-weight: 500;
    padding: 0.6rem 1.1rem !important;
    letter-spacing: 0.01em;
    transition: color 0.2s;
    position: relative;
}

.navbar .nav-link:hover { color: #fff !important; }

.navbar .nav-link.active {
    color: #fff !important;
}

.navbar .nav-link.active::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 1.1rem;
    right: 1.1rem;
    height: 2px;
    background: var(--accent);
}

.navbar-toggler {
    border: 1px solid rgba(255,255,255,0.25);
    padding: 0.35rem 0.6rem;
}

.navbar-toggler:focus { box-shadow: none; }

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.9)' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ===== Hero ===== */
.hero {
    background:
        radial-gradient(ellipse at top right, rgba(37,99,235,0.10), transparent 60%),
        radial-gradient(ellipse at bottom left, rgba(10,37,64,0.05), transparent 60%),
        linear-gradient(180deg, #ffffff 0%, var(--bg-soft) 100%);
    color: var(--text);
    padding: 140px 0 120px;
    text-align: left;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}

.hero::before {
    content: "";
    position: absolute;
    top: 50%;
    right: -180px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(37,99,235,0.08), transparent 70%);
    transform: translateY(-50%);
    z-index: 0;
}

.hero .container { position: relative; z-index: 1; }

.hero h1 {
    font-size: clamp(2.6rem, 5.5vw, 4.5rem);
    font-weight: 800;
    letter-spacing: -0.035em;
    line-height: 1.05;
    color: var(--navy);
    margin-bottom: 1.5rem;
}

.hero h1 .accent { color: var(--accent); }

.hero p.lead {
    font-size: 1.25rem;
    color: var(--muted);
    font-weight: 400;
    max-width: 620px;
    margin-bottom: 2.5rem;
    line-height: 1.5;
}

.hero .eyebrow {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    padding: 0.4rem 0.9rem;
    background: rgba(37,99,235,0.1);
    border-radius: 999px;
}

/* ===== Buttons ===== */
.btn {
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.85rem 1.8rem;
    letter-spacing: -0.01em;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.btn-lg {
    padding: 1rem 2.2rem;
    font-size: 1rem;
}

.btn-primary {
    background: var(--accent);
    border: 2px solid var(--accent);
    color: #fff;
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: #fff;
}

.btn-outline-dark {
    background: transparent;
    border: 2px solid var(--navy);
    color: var(--navy);
}

.btn-outline-dark:hover {
    background: var(--navy);
    color: #fff;
}

.btn-light {
    background: #fff;
    border: 2px solid #fff;
    color: var(--navy);
}

.btn-light:hover {
    background: transparent;
    color: #fff;
    border-color: #fff;
}

/* ===== Sections ===== */
section { padding: 100px 0; }

section h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--navy);
    line-height: 1.15;
}

section .section-eyebrow {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

section .text-muted {
    color: var(--muted) !important;
    font-size: 1.1rem;
    line-height: 1.6;
}

/* ===== Stats strip ===== */
.stats-strip {
    background: var(--navy);
    color: #fff;
    padding: 70px 0;
}

.stat-item .stat-num {
    font-size: clamp(2.4rem, 4vw, 3.2rem);
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.03em;
    line-height: 1;
    display: block;
}

.stat-item .stat-num .accent { color: var(--accent); }

.stat-item .stat-label {
    font-size: 0.92rem;
    color: rgba(255,255,255,0.65);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-top: 0.5rem;
    display: block;
}

/* ===== Feature cards ===== */
.feature-card {
    background: #fff !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-lg);
    padding: 2.4rem 1.8rem !important;
    text-align: left !important;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.feature-card:hover::before { transform: scaleX(1); }

.feature-card .feature-num {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.15em;
    margin-bottom: 1rem;
    display: block;
}

.feature-icon {
    font-size: 2.4rem;
    margin-bottom: 1.2rem;
    display: block;
    line-height: 1;
}

.feature-card h5 {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--navy);
    margin-bottom: 0.7rem;
}

.feature-card p {
    font-size: 0.98rem;
    color: var(--muted);
    line-height: 1.65;
    margin-bottom: 0;
}

/* ===== Service cards ===== */
.service-card {
    background: #fff !important;
    border: 1px solid var(--border) !important;
    border-left: 4px solid var(--accent) !important;
    border-radius: var(--radius-lg);
    padding: 2.5rem !important;
    transition: transform 0.25s, box-shadow 0.25s;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.service-card h3 {
    font-size: 1.7rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--navy);
}

.service-card p {
    font-size: 1rem;
    color: var(--muted);
    line-height: 1.65;
}

.service-card ul li {
    color: var(--text);
    font-size: 0.97rem;
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--border);
}

.service-card ul li:last-child { border-bottom: none; }

/* ===== CTA banner ===== */
.cta-banner {
    background: var(--navy);
    background-image:
        radial-gradient(circle at 20% 50%, rgba(37,99,235,0.25), transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(37,99,235,0.15), transparent 50%);
    color: #fff;
    padding: 110px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-banner h3 {
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    color: #fff;
    margin-bottom: 1rem;
}

.cta-banner p {
    color: rgba(255,255,255,0.75);
    font-size: 1.15rem;
    max-width: 580px;
    margin: 0 auto 2rem;
}

/* ===== Map ===== */
.map-wrapper {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    line-height: 0;
}

.map-wrapper iframe {
    display: block;
    filter: saturate(0.9);
}

/* ===== Contact section ===== */
.contact-section {
    background: var(--bg-soft);
    padding: 100px 0;
}

.contact-section .card {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    background: #fff;
}

.form-control {
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.98rem;
    padding: 0.85rem 1.1rem;
    color: var(--text);
    background: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(37,99,235,0.12);
}

.form-control::placeholder { color: #94a3b8; }

.form-label {
    font-size: 0.88rem;
    color: var(--navy);
    font-weight: 600;
    letter-spacing: 0.01em;
    text-transform: uppercase;
}

.form-label.required::after {
    content: " *";
    color: #dc3545;
    font-weight: 700;
}

.form-label .optional-tag {
    color: var(--muted);
    font-weight: 400;
    font-size: 0.78rem;
    text-transform: none;
    letter-spacing: 0.01em;
    margin-left: 0.4rem;
}

/* ===== Footer ===== */
footer {
    background: var(--navy-deep) !important;
    padding: 3rem 0 !important;
    border-top: 1px solid rgba(255,255,255,0.08);
}

footer p {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.55);
    letter-spacing: 0.01em;
    margin: 0;
}

/* ===== Animations ===== */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero h1, .hero p.lead, .hero .btn, .hero .eyebrow {
    animation: fadeUp 0.7s ease-out backwards;
}

.hero .eyebrow { animation-delay: 0.1s; }
.hero h1 { animation-delay: 0.2s; }
.hero p.lead { animation-delay: 0.35s; }
.hero .btn { animation-delay: 0.5s; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .hero { padding: 90px 0 80px; text-align: center; }
    .hero p.lead { margin-left: auto; margin-right: auto; }
    section { padding: 70px 0; }
    .stats-strip { padding: 50px 0; }
    .stat-item { margin-bottom: 1.5rem; }
}