/* ============================================
   MertPOS - Modern & Professional CSS
   ============================================ */

/* ===== Global Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-blue: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    --gradient-ocean: linear-gradient(135deg, #0052D4 0%, #4364F7 50%, #6FB1FC 100%);
}

html {
    scroll-behavior: smooth;
}

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

/* ===== Navbar Styles ===== */
.navbar {
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    background: var(--gradient-ocean) !important;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.navbar-brand img {
    max-height: 45px;
    width: auto;
    filter: brightness(0) invert(1); /* Logo beyaz yapıyor (navbar dark olduğu için) */
}

.brand-text {
    background: linear-gradient(45deg, #fff, #e0e0e0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link {
    font-weight: 500;
    margin: 0 0.5rem;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--white);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 80%;
}

/* ===== Hero Section ===== */
.hero-section {
    position: relative;
    background: var(--gradient-ocean);
    padding-top: 80px; /* Navbar yüksekliği için */
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,101.3C1248,85,1344,75,1392,69.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: bottom;
    opacity: 0.3;
}

.logo-container {
    animation: float 3s ease-in-out infinite;
}

.logo-icon {
    font-size: 5rem;
    color: var(--white);
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.3));
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: var(--white);
    font-size: 2rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* ===== Section Styles ===== */
section {
    padding: 100px 0 !important; /* Üst ve alt boşluk artırıldı */
    position: relative;
}

#services {
    padding-top: 120px !important; /* Navbar için ekstra boşluk */
    margin-top: -80px; /* Scroll offset düzeltmesi */
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-ocean);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

/* ===== Service Cards ===== */
.service-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    height: 100%;
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(13, 110, 253, 0.2);
    border-color: var(--primary-color);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-ocean);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    transform: rotate(360deg);
}

.service-icon i {
    font-size: 2.5rem;
    color: var(--white);
}

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.service-card p {
    color: var(--secondary-color);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ===== About Section ===== */
#about {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.about-image img {
    border-radius: 15px;
    transition: all 0.3s ease;
}

.about-image img:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.feature-item {
    padding: 0.5rem 0;
    font-weight: 500;
}

/* ===== Contact Section ===== */
#contact {
    background: var(--white);
}

.contact-info-card {
    background: var(--gradient-ocean);
    padding: 2.5rem;
    border-radius: 15px;
    height: 100%;
    color: var(--white);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.5rem;
}

.contact-item h5 {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.contact-item p {
    margin: 0;
    opacity: 0.9;
}

.contact-item a {
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-item a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

/* ===== Contact Form ===== */
.contact-form-card {
    background: var(--light-color);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: block;
    color: var(--dark-color);
}

.form-control {
    padding: 0.75rem 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}

/* ===== WhatsApp Float Button ===== */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 30px;
    right: 30px;
    background: #25d366;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 5px 20px rgba(37, 211, 102, 0.5);
    z-index: 1000;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    background: #128c7e;
    color: var(--white);
    transform: scale(1.1);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 20px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* ===== Footer ===== */
.footer {
    background: var(--gradient-ocean);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
    opacity: 0.8;
}

.footer-links a:hover {
    opacity: 1;
    padding-left: 5px;
}

.footer-contact {
    list-style: none;
    padding: 0;
}

.footer-contact li {
    margin-bottom: 1rem;
    opacity: 0.9;
}

.footer-contact a {
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
    opacity: 0.9;
}

.footer-contact a:hover {
    opacity: 1;
    text-decoration: none;
}

.footer hr {
    border-color: rgba(255,255,255,0.2);
}

/* ===== Buttons ===== */
.btn {
    padding: 0.75rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: var(--gradient-ocean);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(13, 110, 253, 0.3);
}

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

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .hero-section {
        padding-top: 80px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .logo-icon {
        font-size: 3rem;
    }
    
    section {
        padding: 60px 0 !important;
    }
    
    #services {
        padding-top: 80px !important;
        margin-top: -60px;
    }
    
    .service-card {
        margin-bottom: 1.5rem;
    }
    
    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        bottom: 20px;
        right: 20px;
    }
    
    .contact-info-card {
        margin-bottom: 2rem;
    }
}

/* ===== Alert Messages ===== */
.alert {
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1rem;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Loading Animation ===== */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== Scroll Animations ===== */
[data-aos] {
    pointer-events: auto !important;
}

/* ===== Smooth Scroll Offset ===== */
section[id] {
    scroll-margin-top: 80px; /* Navbar yüksekliği için offset */
}