/*
Theme Name: ÖZ-İŞ Mühendislik
Theme URI: https://ozismuhendislik.com
Author: ÖZ-İŞ Mühendislik
Author URI: https://ozismuhendislik.com
Description: ÖZ-İŞ Mühendislik inşaat firması için modern, tek sayfalık profesyonel WordPress teması. Anahtar teslim daire, kafe, restoran ve proje çiziminden inşaata kadar tüm hizmetleri kapsar.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: ozis-muhendislik
Tags: one-page, construction, modern, professional, responsive
*/

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-primary:    #1a2e4a;
    --color-accent:     #e8a020;
    --color-accent-dark:#c4861a;
    --color-light:      #f5f7fa;
    --color-white:      #ffffff;
    --color-text:       #2d3748;
    --color-text-light: #718096;
    --color-border:     #e2e8f0;
    --font-heading:     'Montserrat', sans-serif;
    --font-body:        'Open Sans', sans-serif;
    --transition:       0.3s ease;
    --shadow-sm:        0 2px 8px rgba(0,0,0,0.08);
    --shadow-md:        0 8px 30px rgba(0,0,0,0.12);
    --shadow-lg:        0 20px 60px rgba(0,0,0,0.15);
    --radius:           8px;
    --radius-lg:        16px;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background: var(--color-white);
    line-height: 1.7;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition);
}

ul { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin-bottom: 56px;
}

.section-header {
    text-align: center;
    margin-bottom: 0;
}

.section-header .section-subtitle {
    margin-left: auto;
    margin-right: auto;
}

.accent-line {
    width: 60px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 2px;
    margin: 12px auto 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition);
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(232,160,32,0.35);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

.btn-outline:hover {
    background: var(--color-white);
    color: var(--color-primary);
}

/* ============================================
   HEADER / NAVBAR
   ============================================ */
#site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
    padding: 20px 0;
}

#site-header.scrolled {
    background: var(--color-primary);
    box-shadow: var(--shadow-md);
    padding: 12px 0;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.logo-main {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-white);
    letter-spacing: 1px;
}

.logo-main span {
    color: var(--color-accent);
}

.logo-sub {
    font-family: var(--font-body);
    font-size: 0.7rem;
    color: rgba(255,255,255,0.7);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-top: 2px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-menu a {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.88rem;
    color: rgba(255,255,255,0.9);
    letter-spacing: 0.8px;
    text-transform: uppercase;
    position: relative;
    padding-bottom: 4px;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-cta {
    background: var(--color-accent);
    color: var(--color-white) !important;
    padding: 10px 22px;
    border-radius: var(--radius);
    transition: background var(--transition), transform var(--transition) !important;
}

.nav-cta:hover {
    background: var(--color-accent-dark) !important;
    transform: translateY(-1px);
}

.nav-cta::after { display: none !important; }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition);
}

.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); }

/* ============================================
   HERO SECTION
   ============================================ */
#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--color-primary);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(135deg, rgba(26,46,74,0.92) 0%, rgba(26,46,74,0.75) 50%, rgba(26,46,74,0.88) 100%),
        url('images/hero-bg.jpg') center/cover no-repeat;
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(232,160,32,0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(232,160,32,0.06) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(232,160,32,0.15);
    border: 1px solid rgba(232,160,32,0.4);
    color: var(--color-accent);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 8px 18px;
    border-radius: 50px;
    margin-bottom: 28px;
}

.hero-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.4rem, 5vw, 4rem);
    font-weight: 800;
    color: var(--color-white);
    line-height: 1.15;
    margin-bottom: 24px;
}

.hero-title .highlight {
    color: var(--color-accent);
    position: relative;
}

.hero-description {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.8);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 580px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
}

.stat-label {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.65);
    letter-spacing: 0.5px;
    margin-top: 4px;
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.5);
    font-size: 0.75rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    animation: bounce 2s infinite;
}

.hero-scroll svg {
    width: 20px;
    height: 20px;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(6px); }
}

/* ============================================
   BIZ KIMIZ (ABOUT)
   ============================================ */
#biz-kimiz {
    padding: 100px 0;
    background: var(--color-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
}

.about-image-main {
    width: 100%;
    height: 480px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-image-accent {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius);
    border: 6px solid var(--color-white);
    box-shadow: var(--shadow-md);
}

.about-badge {
    position: absolute;
    top: 30px;
    left: -20px;
    background: var(--color-accent);
    color: var(--color-white);
    padding: 16px 20px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow-md);
}

.about-badge-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
}

.about-badge-text {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    opacity: 0.9;
}

.about-content .section-title { text-align: left; }
.about-content .accent-line { margin-left: 0; }
.about-content .section-subtitle { margin-bottom: 32px; }

.about-text {
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 32px 0;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
}

.about-feature-icon {
    width: 32px;
    height: 32px;
    background: rgba(232,160,32,0.12);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.about-feature-icon svg {
    width: 16px;
    height: 16px;
    color: var(--color-accent);
}

/* ============================================
   HIZMETLERIMIZ (SERVICES)
   ============================================ */
#hizmetlerimiz {
    padding: 100px 0;
    background: var(--color-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 56px;
}

.service-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-accent);
    transform: scaleX(0);
    transition: transform var(--transition);
    transform-origin: left;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

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

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--color-primary), #2a4a7a);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: transform var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(-3deg);
}

.service-icon svg {
    width: 32px;
    height: 32px;
    color: var(--color-accent);
}

.service-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.service-desc {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

.service-number {
    position: absolute;
    bottom: 20px;
    right: 24px;
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    color: rgba(26,46,74,0.04);
    line-height: 1;
    pointer-events: none;
}

/* ============================================
   SÜREÇ (PROCESS)
   ============================================ */
#surec {
    padding: 100px 0;
    background: var(--color-primary);
}

#surec .section-title {
    color: var(--color-white);
}

#surec .section-subtitle {
    color: rgba(255,255,255,0.65);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    margin-top: 56px;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 36px;
    left: calc(12.5% + 36px);
    right: calc(12.5% + 36px);
    height: 2px;
    background: rgba(232,160,32,0.3);
    z-index: 0;
}

.process-step {
    text-align: center;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.step-circle {
    width: 72px;
    height: 72px;
    background: rgba(232,160,32,0.1);
    border: 2px solid rgba(232,160,32,0.4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    transition: all var(--transition);
    position: relative;
}

.process-step:hover .step-circle {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: scale(1.1);
}

.step-circle svg {
    width: 28px;
    height: 28px;
    color: var(--color-accent);
    transition: color var(--transition);
}

.process-step:hover .step-circle svg {
    color: var(--color-white);
}

.step-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 10px;
}

.step-desc {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
}

/* ============================================
   ILETISIM (CONTACT)
   ============================================ */
#iletisim {
    padding: 100px 0;
    background: var(--color-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 60px;
    align-items: start;
    margin-top: 56px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-info-header {
    margin-bottom: 8px;
}

.contact-info-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.contact-info-desc {
    color: var(--color-text-light);
    line-height: 1.7;
    font-size: 0.95rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-item-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary), #2a4a7a);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item-icon svg {
    width: 22px;
    height: 22px;
    color: var(--color-accent);
}

.contact-item-label {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--color-text-light);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.contact-item-value {
    font-size: 0.95rem;
    color: var(--color-text);
    font-weight: 500;
    line-height: 1.5;
}

.contact-item-value a:hover {
    color: var(--color-accent);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-light);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-sm);
}

.form-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 28px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--color-white);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-text);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
    appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(232,160,32,0.12);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23718096' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-submit {
    width: 100%;
    padding: 16px;
    font-size: 1rem;
    justify-content: center;
}

/* Map */
.contact-map {
    margin-top: 60px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    height: 380px;
}

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

/* ============================================
   FOOTER
   ============================================ */
#site-footer {
    background: #0d1b2e;
    color: rgba(255,255,255,0.7);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo-main {
    font-size: 1.3rem;
    margin-bottom: 4px;
    display: block;
}

.footer-brand .logo-sub {
    display: block;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.88rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.55);
}

.footer-col-title {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.55);
    transition: color var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.footer-links a:hover { color: var(--color-accent); }

.footer-links a::before {
    content: '→';
    font-size: 0.75rem;
    color: var(--color-accent);
    opacity: 0;
    transition: opacity var(--transition);
}

.footer-links a:hover::before { opacity: 1; }

.footer-contact-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.55);
}

.footer-contact-item svg {
    width: 16px;
    height: 16px;
    color: var(--color-accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-bottom {
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.35);
}

.footer-bottom a {
    color: var(--color-accent);
}

/* ============================================
   SCROLL TO TOP
   ============================================ */
#scroll-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: var(--color-accent);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
    opacity: 0;
    pointer-events: none;
    z-index: 999;
}

#scroll-top.visible {
    opacity: 1;
    pointer-events: all;
}

#scroll-top:hover {
    background: var(--color-accent-dark);
    transform: translateY(-3px);
}

#scroll-top svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }
.fade-up:nth-child(5) { transition-delay: 0.4s; }
.fade-up:nth-child(6) { transition-delay: 0.5s; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .about-grid { grid-template-columns: 1fr; gap: 48px; }
    .about-image-wrapper { max-width: 560px; margin: 0 auto; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .process-steps { grid-template-columns: repeat(2, 1fr); gap: 32px; }
    .process-steps::before { display: none; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--color-primary);
        flex-direction: column;
        justify-content: center;
        gap: 32px;
        transition: right var(--transition);
        box-shadow: var(--shadow-lg);
        z-index: 999;
    }

    .nav-menu.open { right: 0; }
    .hamburger { display: flex; z-index: 1000; }

    .hero-title { font-size: 2rem; }
    .hero-stats { gap: 24px; }

    .services-grid { grid-template-columns: 1fr; }
    .process-steps { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .contact-form-wrapper { padding: 28px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
    .about-features { grid-template-columns: 1fr; }
    .about-image-accent { display: none; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    #hero, #biz-kimiz, #hizmetlerimiz, #surec, #iletisim { padding: 72px 0; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { text-align: center; justify-content: center; }
}