/* ===========================
   SA Cell World - CSS Styles
   Modern Tech Repair Design
   =========================== */

/* Root Variables */
:root {
    --primary-color: #1e3a8a;
    --primary-light: #2563eb;
    --primary-lighter: #3b82f6;
    --accent-color: #3b82f6;
    --dark-bg: #111827;
    --light-bg: #f3f4f6;
    --white: #ffffff;
    --text-dark: #1f2937;
    --text-gray: #6b7280;
    --text-light: #d1d5db;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease-out;
    --radius: 0.5rem;
}

/* ===========================
   Global Styles
   =========================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-dark);
    background-color: var(--white);
    line-height: 1.6;
    font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.5rem; }

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

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

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 640px) {
    .container {
        padding: 0 1.5rem;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 2rem;
    }
}

/* ===========================
   Buttons
   =========================== */

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Open Sans', sans-serif;
}

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

.btn-primary:hover {
    background-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: scale(0.95);
}

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

.btn-secondary:hover {
    background-color: rgba(37, 99, 235, 0.1);
    border-color: var(--primary-color);
}

/* ===========================
   Header/Navigation
   =========================== */

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-dark);
}

.logo-icon {
    height: 2.5rem;
    width: 2.5rem;
}

.logo-text {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-gray);
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary-light);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 0.4rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 1.5rem;
    height: 0.2rem;
    background-color: var(--text-dark);
    transition: var(--transition);
    border-radius: 0.1rem;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(0.5rem, 0.5rem);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(0.3rem, -0.3rem);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 4rem;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0;
        background-color: var(--white);
        border-bottom: 1px solid var(--border-color);
        padding: 1rem;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out;
    }

    .nav-menu.active {
        max-height: 300px;
    }

    .nav-link {
        padding: 0.75rem 0;
        display: block;
    }

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

    .header-content .btn.mobile-visible {
        display: inline-flex;
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}

/* ===========================
   Hero Section
   =========================== */

.hero {
    background: linear-gradient(135deg, #f0f9ff 0%, #ffffff 100%);
    padding: 5rem 0;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.highlight {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-lighter) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-gray);
}

.hero-image {
    position: relative;
}

.hero-img {
    width: 100%;
    height: auto;
    border-radius: 1.5rem;
    box-shadow: var(--shadow-xl);
    transition: var(--transition);
}

.hero-image:hover .hero-img {
    transform: scale(1.05);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

@media (max-width: 768px) {
    .hero {
        padding: 3rem 0;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

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

/* ===========================
   Services Section
   =========================== */

.services {
    padding: 5rem 0;
    background-color: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto;
}

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

.service-card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.service-card:hover {
    box-shadow: var(--shadow-xl);
    border-color: rgba(37, 99, 235, 0.2);
    transform: translateY(-4px);
}

.service-image {
    height: 12rem;
    overflow: hidden;
    background-color: var(--light-bg);
}

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

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

.service-content {
    padding: 1.5rem;
}

.service-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.service-icon {
    width: 3rem;
    height: 3rem;
    background-color: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background-color: var(--primary-light);
    color: var(--white);
}

.service-badge {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.service-content h3 {
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    transition: var(--transition);
}

.service-card:hover h3 {
    color: var(--primary-light);
}

.service-content p {
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ===========================
   Why Us Section
   =========================== */

.why-us {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #ffffff 100%);
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.reason-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.reason-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.reason-icon {
    color: var(--primary-light);
    margin-bottom: 1rem;
}

.reason-card h3 {
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.reason-card p {
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.6;
}

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

.stat-box {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
}

.stat-box:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-light);
    margin-bottom: 0.5rem;
}

.stat-text {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* ===========================
   Locations Section
   =========================== */

.locations {
    padding: 5rem 0;
    background-color: var(--white);
}

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

.location-card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.location-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(37, 99, 235, 0.2);
    transform: translateY(-4px);
}

.location-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.location-header h3 {
    margin: 0;
    color: var(--text-dark);
    font-size: 1.25rem;
}

.location-badge {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--white);
    background-color: var(--primary-light);
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.location-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.detail-item {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.detail-item svg {
    color: var(--primary-light);
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.detail-item p,
.detail-item a {
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.5;
    margin: 0;
}

.detail-item a {
    color: var(--primary-light);
    font-weight: 500;
}

.detail-item a:hover {
    color: var(--primary-color);
}

/* ===========================
   Contact Section
   =========================== */

.contact {
    padding: 5rem 0;
    background-color: var(--white);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-item {
    display: flex;
    gap: 1rem;
}

.info-icon {
    width: 3rem;
    height: 3rem;
    background-color: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    flex-shrink: 0;
}

.info-item h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.info-item p,
.info-item a {
    color: var(--text-gray);
    font-size: 0.95rem;
}

.contact-form {
    background-color: var(--light-bg);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-family: 'Open Sans', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

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

.contact-form .btn {
    width: 100%;
    justify-content: center;
    margin-top: 1rem;
}

@media (max-width: 768px) {
    .contact-content {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 1.5rem;
    }
}

/* ===========================
   Footer
   =========================== */

.footer {
    background-color: var(--dark-bg);
    color: var(--text-light);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-section h4 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section a {
    color: var(--text-light);
    transition: var(--transition);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-weight: 700;
    color: var(--white);
}

.footer-logo-icon {
    height: 2rem;
    width: 2rem;
}

.footer-section p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-bottom p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 2.5rem;
    height: 2.5rem;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-light);
    color: var(--white);
}

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}

/* ===========================
   Responsive Design
   =========================== */

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }

    .hero-title {
        font-size: 2rem;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .hero-stats {
        gap: 1rem;
    }

    .stat-value {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.125rem; }

    .hero {
        padding: 2rem 0;
    }

    .hero-title {
        font-size: 1.75rem;
    }

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

    .services,
    .why-us,
    .contact {
        padding: 2rem 0;
    }

    .section-header {
        margin-bottom: 2rem;
    }

    .services-grid {
        gap: 1rem;
    }

    .reasons-grid {
        gap: 1rem;
    }

    .reason-card {
        padding: 1.5rem;
    }

    .stat-box {
        padding: 1.5rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .contact-form {
        padding: 1.5rem;
    }

    .footer-content {
        gap: 1.5rem;
    }
}

/* ===========================
   Animations
   =========================== */

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* Smooth scroll behavior for links */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}