/* ============================================
   ACS TECHWORKS - PROFESSIONAL B2B THEME
   ============================================ */

:root {
    --primary: #1e3a5f;      /* Professional deep blue */
    --secondary: #2d5a8c;    /* Medium blue */
    --accent: #3da9e2;       /* Bright accent blue */
    --dark: #0f1f2e;         /* Almost black */
    --light: #f8fafb;        /* Near white */
    --gray: #64748b;         /* Medium gray */
    --gray-light: #e2e8f0;   /* Light gray */
    --white: #ffffff;
    --success: #10b981;      /* Green for success */
    --warning: #f59e0b;      /* Amber for warnings */
    --error: #ef4444;        /* Red for errors */
    --shadow-sm: 0 1px 2px rgba(15, 31, 46, 0.05);
    --shadow-md: 0 4px 12px rgba(15, 31, 46, 0.08);
    --shadow-lg: 0 8px 24px rgba(15, 31, 46, 0.12);
    --shadow-soft: 0 2px 8px rgba(30, 58, 95, 0.06);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-mono: 'JetBrains Mono', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--gray);
    background-color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    color: var(--primary);
    line-height: 1.2;
    font-weight: 700;
    margin-bottom: 1.2rem;
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.5rem;
}

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

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

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

/* ============================================
   LAYOUT & CONTAINER
   ============================================ */

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

.py-40 {
    padding: 40px 0;
}

.py-60 {
    padding: 60px 0;
}

.py-80 {
    padding: 80px 0;
}

.py-120 {
    padding: 120px 0;
}

section {
    position: relative;
}

/* ============================================
   IMAGES & MEDIA
   ============================================ */

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

img.lazy {
    opacity: 0;
    transition: opacity 0.3s ease-in;
}

img.lazy.loaded {
    opacity: 1;
}

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

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

.navbar {
    background: var(--white);
    border-bottom: 2px solid var(--gray-light);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent);
}

nav ul {
    list-style: none;
    display: flex;
    gap: 32px;
    align-items: center;
}

nav a {
    color: var(--gray);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

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

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

.btn-cta {
    background-color: var(--accent) !important;
    color: var(--white) !important;
    padding: 10px 24px !important;
    border-radius: var(--radius-md);
    font-weight: 600;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.btn-cta:hover {
    background-color: var(--secondary) !important;
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    color: var(--white) !important;
}

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

.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    text-align: center;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--accent);
    color: var(--white);
    box-shadow: var(--shadow-md);
    width: 100%;
}

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

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

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

.btn-primary-small {
    padding: 10px 20px;
    font-size: 0.85rem;
    width: auto;
}

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

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

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(61, 169, 226, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(45, 90, 140, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero h1 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero h1 .highlight {
    color: var(--accent);
}

.hero p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 32px;
    flex-wrap: wrap;
}

/* ============================================
   HIGHLIGHT / ACCENT
   ============================================ */

.highlight {
    color: var(--accent);
    font-weight: 700;
}

/* ============================================
   CARDS & GRID
   ============================================ */

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--gray-light);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

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

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.card p {
    flex-grow: 1;
    margin-bottom: 1.5rem;
    color: var(--gray);
}

.read-more {
    color: var(--accent);
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
}

.read-more:hover {
    color: var(--secondary);
    transform: translateX(4px);
}

/* ============================================
   SERVICE DETAIL HERO
   ============================================ */

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

.service-detail-hero h1 {
    color: var(--white);
    font-size: 2.5rem;
}

.service-detail-hero .highlight {
    color: var(--accent);
}

.subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto;
}

/* ============================================
   TECH SPECS / FEATURES GRID
   ============================================ */

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    padding: 60px 0;
}

.spec-item {
    padding: 32px;
    background: var(--light);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--accent);
    transition: var(--transition);
}

.spec-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(8px);
}

.spec-item h3 {
    color: var(--primary);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    font-family: var(--font-mono);
}

.spec-item p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* ============================================
   TIMELINE
   ============================================ */

.workflow {
    padding: 60px 0;
    background-color: var(--light);
}

.section-title {
    font-size: 2rem;
    text-align: center;
    color: var(--primary);
    margin-bottom: 48px;
}

.timeline {
    max-width: 900px;
    margin: 0 auto;
}

.step {
    padding: 24px;
    background: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
    border-left: 4px solid var(--accent);
    box-shadow: var(--shadow-soft);
}

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

/* ============================================
   FORM STYLING
   ============================================ */

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

.form-wrapper {
    background: var(--white);
    padding: 48px;
    border-radius: var(--radius-lg);
    max-width: 600px;
    margin: 0 auto;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-light);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-light);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--gray);
    background-color: var(--white);
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #b0b0b0;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(61, 169, 226, 0.1);
    background-color: var(--white);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

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

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

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

.info-card {
    background: var(--light);
    padding: 24px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    border-left: 4px solid var(--accent);
}

.info-card strong {
    color: var(--primary);
    display: block;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.info-card p {
    color: var(--gray);
    margin: 0;
}

.contact-form-card {
    background: var(--white);
    padding: 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-light);
}

.captcha-container {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding: 12px;
    background: var(--light);
    border-radius: var(--radius-md);
}

.captcha-checkbox {
    width: 24px;
    height: 24px;
    cursor: pointer;
}

.captcha-text {
    font-size: 0.9rem;
    color: var(--gray);
    font-weight: 500;
}

.captcha-logo {
    margin-left: auto;
    width: 28px;
    opacity: 0.6;
}

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

.tech-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-top: 40px;
}

.tech-item {
    background: var(--white);
    border: 2px solid var(--gray-light);
    padding: 16px 24px;
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--primary);
    font-size: 0.85rem;
    transition: var(--transition);
    cursor: pointer;
}

.tech-item:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

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

footer {
    background-color: var(--dark);
    color: var(--white);
    padding: 60px 0 20px;
    margin-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 12px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 16px;
}

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

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

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

.footer-contact p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.center {
    text-align: center;
}

.mt-40 {
    margin-top: 40px;
}

.mt-60 {
    margin-top: 60px;
}

/* ============================================
   PORTFOLIO GRID
   ============================================ */

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.portfolio-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--gray-light);
    transition: var(--transition);
}

.portfolio-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.portfolio-image {
    overflow: hidden;
    height: 200px;
}

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

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.05);
}

.project-info {
    padding: 24px;
}

.category {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--accent);
    letter-spacing: 1px;
    font-weight: 700;
    font-family: var(--font-mono);
}

.project-info h3 {
    margin: 12px 0;
    font-size: 1.1rem;
}

.tech-tags {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.tech-tags li {
    background: var(--light);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--primary);
}

/* ============================================
   BLOG STYLES
   ============================================ */

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.blog-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--gray-light);
    transition: var(--transition);
}

.blog-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.blog-image {
    overflow: hidden;
    height: 200px;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-info {
    padding: 24px;
}

.blog-info .date {
    font-size: 0.8rem;
    color: var(--accent);
    font-family: var(--font-mono);
    font-weight: 600;
}

.blog-info h3 {
    margin: 12px 0;
    font-size: 1.25rem;
}

.blog-info p {
    color: var(--gray);
    margin-bottom: 1rem;
}

/* ============================================
   CHECK LIST
   ============================================ */

.check-list {
    list-style: none;
    padding: 0;
    margin-top: 24px;
}

.check-list li {
    margin-bottom: 12px;
    padding-left: 32px;
    position: relative;
    color: var(--gray);
}

.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
    font-size: 1.25rem;
}

/* ============================================
   CARD TECH (Technical Cards)
   ============================================ */

.card-tech {
    background: var(--white);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-light);
    border-top: 4px solid var(--accent);
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
}

.card-tech:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-tech h3 {
    font-size: 1.1rem;
    margin: 12px 0;
}

.card-tech p {
    color: var(--gray);
}

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

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

    h2 {
        font-size: 1.5rem;
    }

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

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

    .hero-actions .btn-primary,
    .hero-actions .btn-secondary {
        width: 100%;
    }

    .contact-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    nav ul {
        gap: 16px;
    }

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

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

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

    .py-80 {
        padding: 40px 0;
    }

    .py-120 {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    nav ul {
        flex-direction: column;
        gap: 12px;
    }

    .hero {
        padding: 60px 0;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .card {
        padding: 24px;
    }

    .form-wrapper,
    .contact-form-card {
        padding: 24px;
    }

    .service-detail-hero h1 {
        font-size: 1.5rem;
    }

    .spec-item {
        padding: 20px;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================
   LAZY LOADING IMAGES
   ============================================ */

img[loading="lazy"] {
    background: var(--light);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ============================================
   SERVICES PREVIEW SECTION
   ============================================ */
.services-preview {
    background-color: var(--white);
}

.tech-stack {
    background-color: var(--light);
}