/* Main Styling Stylesheet - Ingenieurbüro Pektas */
@import url('variables.css');

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    background-color: var(--color-bg-main);
    color: var(--color-text-primary);
    font-family: var(--font-family-base);
    line-height: 1.6;
    overflow-x: hidden;
    padding-bottom: calc(var(--bottom-nav-height) + env(safe-area-inset-bottom));
}

@media (min-width: 992px) {
    body {
        padding-bottom: 0;
    }
}

a {
    color: var(--color-accent-cyan);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

/* Container & Grid */
.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 70px 0;
}

.section-dark {
    background-color: rgba(11, 15, 25, 0.7);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.section-title-wrap {
    text-align: center;
    margin-bottom: 45px;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 680px;
    margin: 0 auto;
}

/* Header & Navigation */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-bg-glass);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
    display: flex;
    align-items: center;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.logo-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 48px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-weight: 800;
    font-size: 1.15rem;
    letter-spacing: 1px;
    color: #ffffff;
    line-height: 1.2;
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--color-accent-cyan);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.desktop-nav {
    display: none;
}

@media (min-width: 992px) {
    .desktop-nav {
        display: flex;
        align-items: center;
        gap: 24px;
    }
    
    .nav-link {
        color: var(--color-text-secondary);
        font-weight: 500;
        font-size: 0.95rem;
        padding: 6px 12px;
        border-radius: var(--radius-sm);
        transition: all var(--transition-fast);
    }
    
    .nav-link:hover, .nav-link.active {
        color: #ffffff;
        background: rgba(255, 255, 255, 0.05);
    }
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lang-switch {
    display: flex;
    align-items: center;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 3px;
}

.lang-btn {
    padding: 4px 10px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
}

.lang-btn.active {
    background: var(--color-accent-blue);
    color: #ffffff;
}

.btn-header-cta {
    display: none;
}

@media (min-width: 768px) {
    .btn-header-cta {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-blue));
        color: #ffffff;
        font-weight: 600;
        font-size: 0.9rem;
        padding: 9px 18px;
        border-radius: var(--radius-full);
        box-shadow: var(--shadow-glow);
        transition: all var(--transition-fast);
    }
    .btn-header-cta:hover {
        transform: translateY(-2px);
        color: #ffffff;
        box-shadow: 0 0 30px rgba(0, 210, 255, 0.4);
    }
}

/* Mobile Menu Hamburger Trigger Button */
.mobile-menu-trigger {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: #ffffff;
    width: 42px;
    height: 42px;
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
}

.mobile-menu-trigger:hover, .mobile-menu-trigger:focus {
    background: rgba(0, 210, 255, 0.15);
    border-color: var(--color-accent-cyan);
    color: var(--color-accent-cyan);
}

@media (min-width: 992px) {
    .mobile-menu-trigger {
        display: none;
    }
}

/* Mobile Slide-down / Dropdown Modal Menu */
.mobile-drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(7, 9, 16, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 9999;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.mobile-drawer-overlay.active {
    display: flex;
    opacity: 1;
}

.mobile-drawer-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: #0e1626;
    border-bottom: 2px solid var(--color-accent-cyan);
    padding: 24px 20px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.9);
    max-height: 90vh;
    overflow-y: auto;
    animation: drawerSlideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes drawerSlideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

.mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.mobile-drawer-close {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    color: #ffffff;
    font-size: 1.8rem;
    line-height: 1;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-drawer-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    font-size: 1rem;
    font-weight: 600;
    color: #e2e8f0;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.mobile-nav-link:hover, .mobile-nav-link:active {
    background: rgba(0, 210, 255, 0.12);
    border-color: var(--color-accent-cyan);
    color: #ffffff;
}

.mobile-drawer-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Mobile Bottom Navigation */
.mobile-bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(var(--bottom-nav-height) + env(safe-area-inset-bottom));
    padding-bottom: env(safe-area-inset-bottom);
    background: rgba(11, 15, 25, 0.95);
    backdrop-filter: blur(16px);
    border-top: 1px solid var(--color-border);
    z-index: 1000;
}

@media (min-width: 992px) {
    .mobile-bottom-nav {
        display: none;
    }
}

.bottom-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: var(--color-text-muted);
    font-size: 0.72rem;
    font-weight: 500;
}

.bottom-tab svg {
    width: 22px;
    height: 22px;
    fill: currentColor;
}

.bottom-tab.active, .bottom-tab:hover {
    color: var(--color-accent-cyan);
}

.bottom-tab.tab-highlight {
    color: #ffffff;
}

.bottom-tab.tab-highlight .icon-wrap {
    background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-blue));
    padding: 6px;
    border-radius: 50%;
    margin-top: -12px;
    box-shadow: var(--shadow-glow);
}

/* Hero Section */
.hero {
    position: relative;
    padding: 60px 0 80px;
    background: radial-gradient(circle at 70% 20%, rgba(0, 210, 255, 0.08) 0%, transparent 60%);
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

@media (min-width: 992px) {
    .hero-grid {
        grid-template-columns: 1.1fr 0.9fr;
    }
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 210, 255, 0.1);
    border: 1px solid rgba(0, 210, 255, 0.3);
    color: var(--color-accent-cyan);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    margin-bottom: 20px;
}

.hero-title {
    font-size: 2.3rem;
    line-height: 1.2;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 18px;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.2rem;
    }
}

.highlight-cyan {
    background: linear-gradient(135deg, #00d2ff, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 30px;
    max-width: 600px;
}

.hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 35px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-blue));
    color: #ffffff;
    font-weight: 700;
    font-size: 1rem;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-glow);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary:hover {
    transform: translateY(-2px);
    color: #ffffff;
    box-shadow: 0 0 35px rgba(0, 210, 255, 0.4);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    font-weight: 600;
    font-size: 1rem;
    padding: 14px 24px;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-accent-cyan);
    color: #ffffff;
}

.btn-whatsapp {
    background: #25D366;
    color: #ffffff;
}
.btn-whatsapp:hover {
    background: #20ba59;
    color: #ffffff;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.feature-item svg {
    width: 20px;
    height: 20px;
    fill: var(--color-accent-cyan);
    flex-shrink: 0;
}

.hero-visual {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
}

.hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Entity & AI Transparency Section */
.ai-entity-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 35px;
    box-shadow: var(--shadow-sm);
}

.entity-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;

    margin-top: 25px;
}

@media (min-width: 768px) {
    .entity-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.entity-item {
    background: rgba(11, 15, 25, 0.6);
    padding: 20px;
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-accent-cyan);
}

.entity-item h4 {
    font-size: 1.05rem;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.entity-item p {
    font-size: 0.92rem;
    color: var(--color-text-muted);
}

/* Service Cards */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1100px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.service-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 30px;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-cyan);
    box-shadow: var(--shadow-glow);
}

.service-icon {
    width: 54px;
    height: 54px;
    background: rgba(0, 210, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-icon svg {
    width: 28px;
    height: 28px;
    fill: var(--color-accent-cyan);
}

.service-card h3 {
    font-size: 1.3rem;
    color: #ffffff;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: 20px;
    flex: 1;
}

.service-link {
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* Step Process Timeline */
.process-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 768px) {
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1100px) {
    .process-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.process-step-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    position: relative;
}

.step-num {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-accent-blue);
    opacity: 0.6;
    margin-bottom: 10px;
}

.process-step-card h4 {
    font-size: 1.15rem;
    color: #ffffff;
    margin-bottom: 8px;
}

.process-step-card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* FAQ Accordion */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 20px;
    text-align: left;
    background: none;
    border: none;
    color: #ffffff;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question svg {
    width: 20px;
    height: 20px;
    fill: var(--color-accent-cyan);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding: 0 20px 20px;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.faq-item.active .faq-answer {
    display: block;
}

/* Contact Form */
.form-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 35px;
    max-width: 800px;
    margin: 0 auto;
}

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

@media (min-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group.full {
    grid-column: 1 / -1;
}

.form-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.form-input, .form-select, .form-textarea {
    background: rgba(11, 15, 25, 0.7);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    color: #ffffff;
    font-family: var(--font-family-base);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast);
}

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

.form-file-wrap {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
    background: rgba(11, 15, 25, 0.4);
    cursor: pointer;
}

/* Footer & Agency Branding */
.footer {
    background: #070910;
    border-top: 1px solid var(--color-border);
    padding: 60px 0 30px;
    color: var(--color-text-muted);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 25px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        text-align: left;
    }
}

.agency-branding {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    background: rgba(0, 210, 255, 0.08);
    border: 1px solid rgba(0, 210, 255, 0.2);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.agency-branding:hover {
    background: rgba(0, 210, 255, 0.15);
    border-color: var(--color-accent-cyan);
    color: #ffffff;
    box-shadow: var(--shadow-glow);
}

/* Utility alert boxes */
.alert {
    padding: 14px 20px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    margin-bottom: 20px;
}
.alert-success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid #10b981;
    color: #34d399;
}
.alert-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid #ef4444;
    color: #f87171;
}