/* =========================================
   KEMER PROJE — Endüstriyel Lüks Tasarım
   ========================================= */

/* 1. RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Outfit', sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background-color: var(--bg);
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
address { font-style: normal; }

/* 2. VARIABLES */
:root {
    /* Logo uyumlu palet:
       gece laciverti + metalik gri + tok altın + turkuaz vurgu */
    --bg:            #08101E;
    --bg-card:       #101A2B;
    --bg-card-hover: #142238;
    --bg-elevated:   #0D1728;
    --primary:       #173957;
    --primary-light: #235D7B;
    --accent:        #C88724;
    --accent-light:  #E0A744;
    --accent-dark:   #9E6818;
    --turquoise:     #22D3D6;
    --turquoise-soft:#66EEF0;
    --turquoise-dark:#12969B;
    --border:        rgba(226,235,246,0.07);
    --border-accent: rgba(200,135,36,0.32);
    --border-cyan:   rgba(34,211,214,0.34);

    --text:          #C8D2E0;
    --text-bright:   #F0F4F8;
    --text-muted:    #7F8FA6;
    --white:         #FFFFFF;
    --error:         #E85454;
    --success:       #34D399;

    --heading-font:  'Bebas Neue', sans-serif;
    --body-font:     'Outfit', sans-serif;

    --space-xs:  8px;
    --space-sm:  16px;
    --space-md:  32px;
    --space-lg:  64px;
    --space-xl:  100px;

    --radius:    6px;
    --radius-lg: 12px;
    --shadow:    0 8px 32px rgba(0,0,0,0.4);
    --shadow-lg: 0 24px 64px rgba(0,0,0,0.5);
    --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 3. TIPOGRAFI */
h1, h2, h3, h4, h5 {
    font-family: var(--heading-font);
    color: var(--white);
    letter-spacing: 1.5px;
    line-height: 1.1;
}
h1 { font-size: clamp(42px, 6vw, 72px); }
h2 { font-size: clamp(36px, 5vw, 56px); }
h3 { font-size: clamp(24px, 3vw, 36px); }
h4 { font-size: 22px; letter-spacing: 1px; }

p { margin-bottom: var(--space-sm); }
p:last-child { margin-bottom: 0; }

/* 4. LAYOUT */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

section { padding: var(--space-xl) 0; }

.section-header {
    text-align: center;
    margin-bottom: var(--space-lg);
}
.section-header p {
    color: var(--text-muted);
    max-width: 560px;
    margin: var(--space-sm) auto 0;
    font-size: 15px;
    font-weight: 300;
}

/* 5. BUTONLAR */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    border-radius: var(--radius);
    font-family: var(--body-font);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition);
    min-height: 48px;
    border: 2px solid transparent;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--bg);
    border-color: var(--accent);
}
.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 100%);
    box-shadow: 0 0 28px rgba(200,135,36,0.28), 0 0 18px rgba(34,211,214,0.12);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--accent);
    border-color: var(--border-accent);
}
.btn-secondary:hover {
    background: rgba(200,135,36,0.1);
    border-color: var(--accent);
    color: var(--accent-light);
}

.btn-white {
    background: var(--white);
    color: var(--bg);
    border-color: var(--white);
}
.btn-white:hover {
    background: transparent;
    color: var(--white);
    box-shadow: 0 0 30px rgba(255,255,255,0.15);
}

/* 6. KARTLAR */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    transition: all var(--transition);
}
.card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-cyan);
    box-shadow: var(--shadow), 0 0 20px rgba(34,211,214,0.08);
}

/* 7. FORM */
.form-group {
    margin-bottom: var(--space-sm);
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-bright);
    font-size: 14px;
    letter-spacing: 0.3px;
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px var(--space-sm);
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 15px;
    font-family: var(--body-font);
    color: var(--text-bright);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--turquoise);
    box-shadow: 0 0 0 3px rgba(34,211,214,0.14);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}
.form-group input.error,
.form-group textarea.error {
    border-color: var(--error);
    box-shadow: 0 0 0 3px rgba(232,84,84,0.15);
}
.form-group .field-error {
    color: var(--error);
    font-size: 13px;
    margin-top: 6px;
    display: block;
}
.form-group textarea {
    resize: vertical;
    min-height: 140px;
}

.form-result {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius);
    margin-bottom: var(--space-md);
    font-weight: 500;
    font-size: 15px;
}
.form-result.success {
    background: rgba(52,211,153,0.1);
    color: var(--success);
    border: 1px solid rgba(52,211,153,0.3);
}
.form-result.error {
    background: rgba(232,84,84,0.1);
    color: var(--error);
    border: 1px solid rgba(232,84,84,0.3);
}

/* 8. HEADER */
.site-header {
    background: rgba(11, 18, 33, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    gap: var(--space-md);
}

.logo {
    flex-shrink: 0;
}

.logo-text {
    font-family: var(--heading-font);
    font-size: 22px;
    color: var(--white);
    letter-spacing: 2px;
    white-space: nowrap;
}

.main-nav ul {
    display: flex;
    gap: 4px;
    align-items: center;
}

.main-nav a {
    color: var(--text-muted);
    padding: 8px 16px;
    border-radius: var(--radius);
    transition: all var(--transition);
    white-space: nowrap;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.3px;
}
.main-nav a:hover {
    color: var(--white);
    background: rgba(255,255,255,0.05);
    box-shadow: inset 0 -2px 0 rgba(34,211,214,0.45);
}
.main-nav a.active {
    color: var(--accent-light);
    background: rgba(200,135,36,0.08);
    box-shadow: inset 0 -2px 0 var(--turquoise);
}

/* Dropdown */
.has-dropdown { position: relative; }

.dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 1px solid var(--border);
    min-width: 240px;
    border-radius: var(--radius-lg);
    flex-direction: column;
    gap: 0;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(-8px);
    transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease;
    box-shadow: var(--shadow-lg);
    padding: var(--space-xs) 0;
}

.has-dropdown:hover > .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown li a {
    color: var(--text);
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 400;
    border-radius: 0;
    transition: all 0.2s ease;
}
.dropdown li a:hover {
    background: rgba(34,211,214,0.08);
    color: var(--turquoise-soft);
    padding-left: 28px;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    min-height: 44px;
    min-width: 44px;
    justify-content: center;
    align-items: center;
}
.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--white);
    transition: all var(--transition);
    border-radius: 1px;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 9. FOOTER */
.site-footer {
    background: #070D18;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    padding: var(--space-lg) 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: var(--space-lg);
}

.footer-col h3 {
    font-size: 20px;
    margin-bottom: var(--space-sm);
    letter-spacing: 1.5px;
}
.footer-col h4 {
    font-family: var(--body-font);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
    margin-bottom: var(--space-sm);
}

.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a,
.footer-col address a {
    color: var(--text-muted);
    transition: color var(--transition);
    font-size: 14px;
}
.footer-col ul li a:hover,
.footer-col address a:hover {
    color: var(--turquoise-soft);
}

.footer-col address p {
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-muted);
}

.social-links {
    display: flex;
    gap: 10px;
    margin-top: var(--space-sm);
}
.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 700;
    transition: all var(--transition);
}
.social-links a:hover {
    background: rgba(34,211,214,0.08);
    border-color: var(--border-cyan);
    color: var(--turquoise-soft);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding: var(--space-sm) 0;
    margin-top: var(--space-lg);
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
}

/* 10. ANASAYFA — Hero */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: linear-gradient(160deg, #0B1221 0%, #12203A 40%, #0D1628 100%);
    color: var(--white);
    text-align: left;
    overflow: hidden;
    padding: var(--space-xl) 0;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 70%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(212,146,42,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to top, var(--bg) 0%, transparent 100%);
    pointer-events: none;
}

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

.hero h1 {
    font-size: clamp(48px, 7vw, 88px);
    color: var(--white);
    margin-bottom: var(--space-sm);
    letter-spacing: 2px;
    line-height: 0.95;
}

.hero p {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 520px;
    margin-bottom: var(--space-md);
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.hero-buttons .btn-white {
    border-color: var(--border-accent);
    color: var(--accent);
    background: transparent;
}
.hero-buttons .btn-white:hover {
    background: rgba(200,135,36,0.08);
    color: var(--accent-light);
}

/* 11. ANASAYFA — Hizmetler */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: linear-gradient(to bottom, var(--turquoise), var(--turquoise));
    transition: height var(--transition);
    border-radius: 0 0 3px 0;
}

.service-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-cyan);
    transform: translateY(-6px);
    box-shadow: var(--shadow), 0 0 22px rgba(34,211,214,0.08);
}

.service-card:hover::before {
    height: 100%;
}

.service-card h3 {
    font-size: 28px;
    margin-bottom: var(--space-xs);
    letter-spacing: 1px;
}

.service-card p {
    color: var(--text-muted);
    font-size: 15px;
    font-weight: 300;
}

.service-card .btn {
    margin-top: var(--space-sm);
}

/* 12. ANASAYFA — Istatistikler */
.stats-section {
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    position: relative;
}

.stats-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 25%,
        rgba(255,255,255,0.015) 25%,
        rgba(255,255,255,0.015) 25.1%
    );
    pointer-events: none;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    text-align: center;
    position: relative;
}

.stat-item {
    padding: var(--space-md);
    border-right: 1px solid var(--border);
}
.stat-item:last-child { border-right: none; }

.stat-item h2 {
    font-size: clamp(48px, 6vw, 72px);
    color: var(--accent);
    line-height: 1;
    margin-bottom: var(--space-xs);
    letter-spacing: 2px;
}

.stat-item p {
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}
/* 13. ANASAYFA — Neden Biz */
.why-us-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.why-us-item {
    text-align: center;
    padding: var(--space-lg) var(--space-md);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    transition: all var(--transition);
}

.why-us-item:hover {
    border-color: var(--border-cyan);
    background: var(--bg-card-hover);
    box-shadow: 0 0 22px rgba(34,211,214,0.06);
}

.why-us-item h3 {
    font-size: 30px;
    margin-bottom: var(--space-sm);
    letter-spacing: 1px;
}

.why-us-item p {
    color: var(--text-muted);
    font-weight: 300;
    font-size: 15px;
}

/* 14. ANASAYFA — CTA */
.cta-section {
    background: linear-gradient(135deg, #9E6818 0%, #C88724 48%, #DDA33F 100%);
    color: var(--bg);
    text-align: center;
    position: relative;
    overflow: hidden;
    border-top: 3px solid var(--turquoise);
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(
        -45deg,
        transparent,
        transparent 20px,
        rgba(0,0,0,0.03) 20px,
        rgba(0,0,0,0.03) 21px
    );
    pointer-events: none;
}

.cta-section h2 {
    color: var(--bg);
    position: relative;
}

.cta-section p { color: rgba(11,18,33,0.7); position: relative; }
.cta-section .btn-white {
    background: var(--bg);
    color: var(--accent);
    border-color: var(--bg);
    position: relative;
}
.cta-section .btn-white:hover {
    background: transparent;
    color: var(--bg);
    border-color: var(--bg);
}

/* 15. SAYFA HEADER (hakkimizda, hizmetler, galeri, iletisim) */
.page-header {
    background:
        radial-gradient(circle at 12% 18%, rgba(34,211,214,0.10) 0%, transparent 28%),
        linear-gradient(160deg, #0D1829 0%, #142640 50%, #08101E 100%);
    color: var(--white);
    padding: var(--space-lg) 0;
    position: relative;
    overflow: hidden;
}

.page-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to top, var(--bg) 0%, transparent 100%);
    pointer-events: none;
}

.page-header h1 { letter-spacing: 2px; }
.page-header p { color: var(--text-muted); font-weight: 300; }

/* 16. GALERI */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-sm);
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    aspect-ratio: 4/3;
    cursor: pointer;
    border: 1px solid var(--border);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.gallery-item:hover img { transform: scale(1.08); }

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(11,18,33,0.85) 0%, rgba(11,18,33,0.2) 100%);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: var(--space-sm);
    opacity: 0;
    transition: opacity var(--transition);
    color: var(--turquoise-soft);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
}

.gallery-item:hover .gallery-overlay { opacity: 1; }

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.95);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}
.lightbox.active { display: flex; }
.lightbox-img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}
.lightbox-close {
    position: absolute;
    top: 24px;
    right: 28px;
    font-size: 32px;
    color: var(--text-muted);
    cursor: pointer;
    background: none;
    border: none;
    line-height: 1;
    transition: color var(--transition);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.lightbox-close:hover { color: var(--accent); }

.gallery-empty {
    text-align: center;
    padding: var(--space-xl);
    color: var(--text-muted);
}


.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 28px;
    color: var(--text-muted);
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    cursor: pointer;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    z-index: 1;
}
.lightbox-nav:hover {
    color: var(--accent);
    background: rgba(255,255,255,0.12);
}
.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }

/* 17. ILETISIM */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: start;
}

.contact-info h2 { margin-bottom: var(--space-md); }

.contact-info-item {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 0;
}

.contact-info-item strong {
    display: block;
    color: var(--accent);
    font-family: var(--heading-font);
    font-size: 18px;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.map-container {
    margin-top: var(--space-md);
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 300px;
    background: var(--bg-card);
    border: 1px solid var(--border);
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.map-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 14px;
}

/* 18. HIZMET DETAY */
.service-detail-header {
    background:
        radial-gradient(circle at 12% 18%, rgba(34,211,214,0.10) 0%, transparent 28%),
        linear-gradient(160deg, #0D1829 0%, #142640 50%, #08101E 100%);
    color: var(--white);
    padding: var(--space-lg) 0;
    position: relative;
}

.service-detail-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to top, var(--bg) 0%, transparent 100%);
    pointer-events: none;
}

.service-detail-header h1 { letter-spacing: 2px; }

.service-features { list-style: none; }
.service-features li {
    padding: var(--space-xs) 0;
    padding-left: 28px;
    position: relative;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}
.service-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--turquoise);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(34,211,214,0.35);
}

/* 19. LAYOUT YARDIMCILARI */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: center;
}

.about-image-placeholder {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    color: var(--text-muted);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mission-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.mission-grid .card h3 {
    color: var(--accent);
    margin-bottom: var(--space-sm);
}

.service-detail-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-lg);
    align-items: start;
}

.sidebar-card {
    position: sticky;
    top: 100px;
}

.sidebar-card h3 {
    color: var(--accent);
    margin-bottom: var(--space-sm);
}

.sidebar-card p {
    font-size: 15px;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.sidebar-card .btn {
    display: block;
    text-align: center;
    margin-bottom: var(--space-xs);
}

.section-bg {
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.service-features-wrap {
    margin: var(--space-sm) 0;
}

/* 20. 404 */
.not-found {
    text-align: center;
    padding: 120px 0;
}
.not-found h1 {
    font-size: clamp(80px, 15vw, 160px);
    color: var(--accent);
    line-height: 0.8;
    margin-bottom: var(--space-sm);
}
.not-found h2 { margin-bottom: var(--space-sm); }
.not-found p { color: var(--text-muted); }
.not-found .btn { margin: var(--space-xs); }

/* 20. BREADCRUMB */
.breadcrumb {
    padding: var(--space-sm) 0;
    font-size: 13px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    letter-spacing: 0.3px;
}
.breadcrumb a { color: var(--accent); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb span + span::before {
    content: ' / ';
    margin: 0 4px;
    color: var(--text-muted);
}

/* 21. RESPONSIVE */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-item { border-right: none; border-bottom: 1px solid var(--border); }
    .stat-item:nth-child(odd) { border-right: 1px solid var(--border); }
    .why-us-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    h1 { letter-spacing: 1px; }

    .hamburger { display: flex; }

    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-card);
        border-bottom: 1px solid var(--border);
        padding: var(--space-sm) var(--space-md);
        box-shadow: var(--shadow);
    }
    .main-nav.open { display: block; }
    .main-nav ul {
        flex-direction: column;
        gap: 0;
    }
    .main-nav > ul > li > a {
        display: block;
        padding: 14px 0;
        border-radius: 0;
        border-bottom: 1px solid var(--border);
    }

    .has-dropdown .dropdown {
        opacity: 0;
        visibility: hidden;
        position: static;
        transform: none;
        background: rgba(255,255,255,0.03);
        border: none;
        box-shadow: none;
        padding: 0;
        padding-left: var(--space-md);
    }
    .has-dropdown.open .dropdown {
        opacity: 1;
        visibility: visible;
        display: block;
        transform: none;
    }
    .dropdown li a {
        color: var(--text-muted);
        padding: 10px 0;
        font-size: 14px;
    }
    .dropdown li a:hover {
        color: var(--accent);
        background: none;
        padding-left: 0;
    }

    .hero {
        min-height: auto;
        padding: var(--space-lg) 0;
        text-align: center;
    }
    .hero h1 { font-size: 42px; }
    .hero p { margin-left: auto; margin-right: auto; }
    .hero-buttons { justify-content: center; }

    .services-grid { grid-template-columns: 1fr; }
    .why-us-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .mission-grid { grid-template-columns: 1fr; }
    .service-detail-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; }

    .stat-item { border: none !important; }
    .stat-item h2 { font-size: 48px; }
}

@media (max-width: 480px) {
    section { padding: var(--space-lg) 0; }
    .hero-buttons { flex-direction: column; align-items: stretch; }
    .gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .container { padding: 0 var(--space-sm); }
}