/* ========================================
   OPENDEV WEBSITE - STYLES
   ======================================== */

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --dark-color: #1f2937;
    --light-color: #f9fafb;
    --border-color: #e5e7eb;
    --text-color: #374151;
    --success-color: #10b981;
    --spacing-unit: 1rem;
}

/* ========================================
   GLOBAL STYLES
   ======================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #ffffff;
}

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

h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

h1 {
    font-size: 3rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    font-weight: 600;
}

h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    color: var(--text-color);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

ul {
    list-style: none;
}

li {
    margin-bottom: 0.5rem;
}

li:before {
    content: "✓ ";
    color: var(--success-color);
    font-weight: bold;
    margin-right: 0.5rem;
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
    display: inline-block;
    padding: 12px 32px;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: 6px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

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

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

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

.btn-light:hover {
    background-color: transparent;
    color: white;
}

/* ========================================
   NAVIGATION
   ======================================== */

.navbar {
    background-color: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.logo:hover {
    opacity: 0.8;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    margin: 5px 0;
    transition: 0.3s;
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 120px 0;
    text-align: center;
}

.hero-content h1 {
    color: white;
    margin-bottom: 1rem;
    font-size: 3.5rem;
}

.hero-content p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   PAGE HEADER
   ======================================== */

.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    color: white;
    margin-bottom: 1rem;
}

.page-header p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
}

/* ========================================
   FEATURES SECTION
   ======================================== */

.features {
    padding: 80px 0;
    background-color: var(--light-color);
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--text-color);
}

/* ========================================
   SERVICES SECTION
   ======================================== */

.services-preview {
    padding: 80px 0;
}

.services-preview h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.services-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.service-item {
    padding: 2rem;
    border-left: 4px solid var(--primary-color);
    background-color: var(--light-color);
    border-radius: 4px;
}

.service-item h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.services-preview .btn {
    display: block;
    margin: 2rem auto 0;
    width: fit-content;
}

/* ========================================
   SERVICES DETAILED
   ======================================== */

.services-detailed {
    padding: 80px 0;
}

.service-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
}

.service-detail.reverse {
    grid-template-columns: 1fr 1fr;
    direction: rtl;
}

.service-detail.reverse .service-content {
    direction: ltr;
}

.service-image {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

.service-icon {
    font-size: 5rem;
}

.service-content h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.service-features {
    list-style: none;
    margin: 1.5rem 0;
}

.service-features li {
    padding: 0.5rem 0 0.5rem 1.5rem;
    position: relative;
}

.service-features li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* ========================================
   TECH STACK SECTION
   ======================================== */

.tech-stack {
    background-color: var(--light-color);
    padding: 80px 0;
}

.tech-stack h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
}

.tech-item {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.tech-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* ========================================
   ABOUT SECTION
   ======================================== */

.about {
    padding: 80px 0;
}

.about-content {
    margin-bottom: 3rem;
}

.about-content h2 {
    color: var(--primary-color);
    margin-top: 2rem;
}

.values-list {
    list-style: none;
    margin: 2rem 0;
}

.values-list li {
    padding: 1rem;
    margin-bottom: 1rem;
    background-color: var(--light-color);
    border-radius: 6px;
    border-left: 4px solid var(--primary-color);
}

.values-list li:before {
    content: none;
}

.values-list strong {
    color: var(--primary-color);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.about-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
}

.about-card h3 {
    color: white;
}

/* ========================================
   WHY CHOOSE US
   ======================================== */

.why-choose {
    background-color: var(--light-color);
    padding: 80px 0;
}

.why-choose h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.reason-item {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.reason-number {
    display: inline-block;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.reason-item h3 {
    color: var(--primary-color);
}

/* ========================================
   CONTACT SECTION
   ======================================== */

.contact {
    padding: 80px 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.info-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.info-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.info-content h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.info-content a {
    font-weight: 600;
}

/* ========================================
   CONTACT FORM
   ======================================== */

.contact-form-wrapper h2 {
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.contact-form {
    display: grid;
    gap: 1.5rem;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group.checkbox {
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
}

.form-group.checkbox input {
    width: 20px;
    height: 20px;
    margin: 0;
}

.form-group.checkbox label {
    margin-bottom: 0;
}

.contact-form button {
    align-self: flex-start;
}

/* ========================================
   CTA SECTION
   ======================================== */

.cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.cta h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   LEGAL CONTENT
   ======================================== */

.legal-content {
    padding: 80px 0;
}

.legal-document {
    max-width: 800px;
    margin: 0 auto;
}

.legal-document h2 {
    color: var(--primary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.legal-document h3 {
    color: var(--dark-color);
    margin-top: 1.5rem;
    font-size: 1.2rem;
}

.legal-document ul {
    list-style: none;
    padding-left: 0;
}

.legal-document ul li {
    margin-left: 0;
    padding-left: 1.5rem;
    position: relative;
}

.legal-document ul li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: white;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li:before {
    content: none;
}

.footer-preferences {
    margin-top: 1rem;
}

.footer-preferences a {
    color: white;
    font-weight: 600;
    text-decoration: underline;
}

.footer-preferences a:hover {
    color: #bfdbfe;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* ========================================
   COOKIE CONSENT BANNER
   ======================================== */

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.95);
    color: white;
    padding: 20px;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
    z-index: 999;
    display: flex;
    justify-content: center;
    animation: slideUp 0.4s ease;
}

.cookie-banner.hidden {
    display: none;
}

.cookie-content {
    max-width: 1000px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 2rem;
    align-items: center;
}

.cookie-text h3 {
    color: white;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.cookie-text p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.5;
}

.cookie-text a {
    color: #3b82f6;
    text-decoration: underline;
}

.cookie-text a:hover {
    color: #60a5fa;
}

.cookie-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.cookie-buttons .btn {
    padding: 10px 20px;
    font-size: 0.95rem;
    white-space: nowrap;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background-color: white;
        flex-direction: column;
        gap: 0;
        padding: 2rem 0;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
        text-align: center;
        padding: 1rem 0;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-toggle {
        display: flex;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .service-detail,
    .service-detail.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
        gap: 2rem;
    }

    .service-detail.reverse .service-content {
        direction: ltr;
    }

    .service-detail:nth-child(even) {
        grid-auto-flow: dense;
    }

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

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

    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .footer-content {
        grid-template-columns: 1fr;
    }

    .cookie-banner {
        padding: 12px;
    }

    .cookie-content {
        grid-template-columns: 1fr;
        gap: 1rem;
        max-height: min(55vh, 360px);
        overflow-y: auto;
        padding-right: 4px;
    }

    .cookie-text h3 {
        font-size: 1rem;
        margin-bottom: 0.35rem;
    }

    .cookie-text p {
        font-size: 0.9rem;
        line-height: 1.4;
    }

    .cookie-buttons {
        width: 100%;
        gap: 0.75rem;
        justify-content: stretch;
    }

    .cookie-buttons .btn {
        flex: 1 1 100%;
        width: 100%;
        padding: 10px 16px;
    }

    .cookie-buttons #cookieAccept {
        order: -1;
    }
}

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

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    .hero {
        padding: 60px 0;
    }

    .page-header {
        padding: 40px 0;
    }

    .features,
    .services-preview,
    .about,
    .why-choose,
    .services-detailed,
    .contact,
    .tech-stack,
    .legal-content {
        padding: 40px 0;
    }

    .cta {
        padding: 40px 0;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

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

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

    .cookie-banner {
        padding: 10px;
    }

    .cookie-content {
        gap: 0.85rem;
        max-height: min(48vh, 300px);
    }

    .cookie-text p {
        font-size: 0.85rem;
    }

    .cookie-buttons {
        gap: 0.6rem;
    }

    .cookie-buttons .btn {
        font-size: 0.88rem;
        padding: 9px 14px;
    }

    .cookie-buttons #cookieAccept {
        order: -1;
    }
}