/* ===================================
   Otomasyon Sistemleri - Ana Site CSS
   Renk Şeması: #0074a6 (Primary), #2e3a4c (Secondary)
   =================================== */

/* === ROOT & RESET === */
:root {
    --primary-color: #0074a6;
    --secondary-color: #2e3a4c;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --gray: #6c757d;
    --border-color: #dee2e6;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

/* Minimum font size for better readability (SEO) */
html {
    font-size: 16px;
}

p, li, span, div {
    font-size: 1rem; /* 16px */
    line-height: 1.6;
}

small {
    font-size: 0.875rem; /* 14px - minimum recommended */
}

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

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

ul {
    list-style: none;
}

/* === CONTAINER === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* === HEADER === */
.top-bar {
    background: var(--secondary-color);
    color: var(--white);
    padding: 10px 0;
    font-size: 14px;
}

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

.contact-info a {
    color: var(--white);
    margin-right: 20px;
}

.contact-info a:hover {
    color: var(--primary-color);
}

.contact-info i {
    margin-right: 5px;
}

/* === NAVBAR === */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    margin-right: 10px;
    font-size: 32px;
}

.logo .site-logo {
    max-height: 70px;
    height: auto;
    width: auto;
    max-width: 250px;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-menu a {
    color: var(--text-color);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

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

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: var(--transition);
}

/* === FLASH MESSAGES === */
.flash-message {
    padding: 15px 0;
    margin-bottom: 0;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.flash-success {
    background: #d4edda;
    color: #155724;
}

.flash-error {
    background: #f8d7da;
    color: #721c24;
}

.flash-message .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flash-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    opacity: 0.5;
}

/* === HERO SECTION === */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120"><path d="M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z" opacity=".25" fill="%23ffffff"/><path d="M0,0V15.81C13,36.92,27.64,56.86,47.69,72.05,99.41,111.27,165,111,224.58,91.58c31.15-10.15,60.09-26.07,89.67-39.8,40.92-19,84.73-46,130.83-49.67,36.26-2.85,70.9,9.42,98.6,31.56,31.77,25.39,62.32,62,103.63,73,40.44,10.79,81.35-6.69,119.13-24.28s75.16-39,116.92-43.05c59.73-5.85,113.28,22.88,168.9,38.84,30.2,8.66,59,6.17,87.09-7.5,22.43-10.89,48-26.93,60.65-49.24V0Z" opacity=".5" fill="%23ffffff"/><path d="M0,0V5.63C149.93,59,314.09,71.32,475.83,42.57c43-7.64,84.23-20.12,127.61-26.46,59-8.63,112.48,12.24,165.56,35.4C827.93,77.22,886,95.24,951.2,90c86.53-7,172.46-45.71,248.8-84.81V0Z" fill="%23ffffff"/></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-animation {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.floating-icon {
    position: absolute;
    font-size: 60px;
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.floating-icon:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-icon:nth-child(2) {
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.floating-icon:nth-child(3) {
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
}

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

.btn-primary:hover {
    background: #005a82;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 116, 166, 0.3);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: transparent;
    color: var(--white);
}

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

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

/* === SECTIONS === */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 18px;
    color: var(--gray);
}

/* === SERVICES === */
.services {
    background: var(--light-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin: 0 auto 20px;
}

.service-card h3 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 22px;
}

.service-card p {
    color: var(--gray);
    line-height: 1.8;
}

/* === PROJECTS === */
.projects-preview {
    background: var(--white);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.project-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    color: rgba(255, 255, 255, 0.3);
}

.project-overlay {
    position: absolute;
    top: 20px;
    right: 20px;
}

.project-category {
    background: var(--primary-color);
    color: var(--white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
}

.project-content {
    padding: 25px;
}

.project-content h3 {
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-size: 20px;
}

.project-content p {
    color: var(--gray);
    margin-bottom: 15px;
    line-height: 1.6;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--gray);
}

.project-meta i {
    margin-right: 5px;
    color: var(--primary-color);
}

/* === WHY US === */
.why-us {
    background: var(--light-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-item {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.feature-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.2;
    margin-bottom: 15px;
}

.feature-item h3 {
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.feature-item p {
    color: var(--gray);
    line-height: 1.8;
}

/* === CTA === */
.cta {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    text-align: center;
    padding: 80px 0;
}

.cta-content h2 {
    font-size: 36px;
    margin-bottom: 15px;
}

.cta-content p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

/* === PAGE HEADER === */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 42px;
    margin-bottom: 15px;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 10px;
    font-size: 14px;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* === ABOUT PAGE === */
.about-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    color: var(--secondary-color);
    font-size: 32px;
    margin-bottom: 20px;
}

.about-text .lead {
    font-size: 18px;
    color: var(--text-color);
    line-height: 1.8;
}

.about-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.about-image-placeholder {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    height: 400px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.3);
}

.mission-vision {
    background: var(--light-bg);
}

.mv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.mv-card {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    text-align: center;
}

.mv-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin: 0 auto 20px;
}

.mv-card h3 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: 24px;
}

.mv-card p {
    color: var(--gray);
    line-height: 1.8;
}

/* === STATS === */
.stats-section {
    background: var(--secondary-color);
    color: var(--white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

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

.stat-icon {
    font-size: 48px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 16px;
    opacity: 0.9;
}

/* === VALUES === */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.value-card {
    text-align: center;
    padding: 30px;
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.value-card i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.value-card h3 {
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.value-card p {
    color: var(--gray);
    line-height: 1.6;
}

/* === PROJECTS PAGE === */
.project-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 25px;
    color: var(--text-color);
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.no-results {
    text-align: center;
    padding: 80px 20px;
    color: var(--gray);
}

.no-results i {
    font-size: 80px;
    margin-bottom: 20px;
    opacity: 0.3;
}

/* === CONTACT PAGE === */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
}

.contact-info-box {
    background: var(--light-bg);
    padding: 40px;
    border-radius: 10px;
}

.contact-info-box h2 {
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.contact-info-items {
    margin-top: 30px;
}

.contact-info-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-info-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-info-content h3 {
    color: var(--secondary-color);
    margin-bottom: 5px;
    font-size: 16px;
}

.contact-info-content p,
.contact-info-content a {
    color: var(--gray);
    line-height: 1.6;
}

.contact-info-content a:hover {
    color: var(--primary-color);
}

.contact-form-box {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.contact-form-box h2 {
    color: var(--secondary-color);
    margin-bottom: 30px;
}

/* === FORMS === */
.contact-form .form-group,
.contact-form .form-row {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--secondary-color);
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: inherit;
    font-size: 14px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: var(--gray);
    font-size: 12px;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* === FOOTER === */
.footer {
    background: var(--secondary-color);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-logo {
    max-height: 60px;
    height: auto;
    width: auto;
    max-width: 250px;
    margin-bottom: 15px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3,
.footer-column h4 {
    margin-bottom: 20px;
    color: var(--white);
}

.footer-column h3 {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-column p {
    line-height: 1.8;
    opacity: 0.9;
}

.footer-links li,
.footer-services li {
    margin-bottom: 10px;
}

.footer-links a {
    opacity: 0.9;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--primary-color);
}

.footer-services li {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-services i {
    color: var(--primary-color);
}

.footer-contact li {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    opacity: 0.9;
}

.footer-contact i {
    color: var(--primary-color);
    margin-top: 3px;
}

.footer-contact a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    opacity: 0.9;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* === SCROLL TO TOP === */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    z-index: 999;
}

.scroll-to-top:hover {
    background: var(--secondary-color);
    transform: translateY(-5px);
}

.scroll-to-top.show {
    display: flex;
}

/* === WHATSAPP BUTTON === */
.whatsapp-button {
    position: fixed;
    bottom: 90px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #25d366;
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    z-index: 999;
    text-decoration: none;
}

.whatsapp-button:hover {
    background: #128c7e;
    transform: translateY(-5px);
    color: var(--white);
}

.whatsapp-button i {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

/* === UTILITY CLASSES === */
.text-center {
    text-align: center;
}

.text-muted {
    color: var(--gray);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .top-bar {
        padding: 8px 0;
    }
    
    .top-bar-content {
        flex-direction: column;
        gap: 5px;
        text-align: center;
    }
    
    .contact-info {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    
    .contact-info a {
        margin-right: 0;
        font-size: 13px;
        white-space: nowrap;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 30px;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
        z-index: 999;
    }

    .nav-menu.active {
        right: 0;
    }

    .mobile-menu-toggle {
        display: flex;
        z-index: 1000;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .section-header h2 {
        font-size: 28px;
    }

    .services-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .about-content-wrapper,
    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .mv-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 60px 0;
    }

    section {
        padding: 50px 0;
    }

    .logo {
        font-size: 20px;
    }

    .logo i {
        font-size: 24px;
    }
    
    /* Scroll to Top & WhatsApp Button - Mobile */
    .scroll-to-top,
    .whatsapp-button {
        width: 45px;
        height: 45px;
        font-size: 18px;
        bottom: 20px;
        right: 20px;
    }
    
    .whatsapp-button {
        bottom: 75px;
        font-size: 20px;
    }
}

/* Flash Message Animation */
@keyframes slideUp {
    from {
        transform: translateY(0);
        opacity: 1;
    }
    to {
        transform: translateY(-100%);
        opacity: 0;
    }
}