/* ===================================
   PTR MEDIA - Professional HVAC Website Styles
   Color Palette from Logo:
   - Blue Gradient: #0065A4 to #7CCDF4
   - Orange/Yellow Accent: #F39642 to #F8CF48
   =================================== */

/* CSS Variables */
:root {
    /* Primary Colors - From Logo */
    --blue-dark: #0065A4;
    --blue-mid: #3BA4DC;
    --blue-light: #7CCDF4;
    --orange-dark: #F39642;
    --orange-light: #F8CF48;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    
    /* Gradients */
    --gradient-blue: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue-mid) 50%, var(--blue-light) 100%);
    --gradient-orange: linear-gradient(135deg, var(--orange-dark) 0%, var(--orange-light) 100%);
    --gradient-hero: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-width: 1200px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
}

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

ul {
    list-style: none;
}

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.preloader-content {
    text-align: center;
}

.preloader-logo {
    width: 80px;
    height: auto;
    margin-bottom: 24px;
    animation: pulse 1.5s ease-in-out infinite;
}

.preloader-bar {
    width: 200px;
    height: 3px;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.preloader-bar::after {
    content: '';
    display: block;
    width: 60%;
    height: 100%;
    background: var(--gradient-blue);
    animation: loading 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

@keyframes loading {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(250%); }
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition-base);
}

.nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    padding: 12px 0;
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

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

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

.nav-title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1;
}

.nav-subtitle {
    font-size: 11px;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--gray-600);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-orange);
    transition: var(--transition-base);
}

.nav-link:hover {
    color: var(--gray-900);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
}

.lang-btn {
    color: var(--gray-400);
    transition: var(--transition-fast);
}

.lang-btn:hover {
    color: var(--gray-600);
}

.lang-btn.active {
    color: var(--blue-dark);
}

.lang-divider {
    color: var(--gray-300);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    transition: var(--transition-base);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.btn-primary {
    background: var(--gradient-blue);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(0, 101, 164, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 101, 164, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--gray-700);
    border: 2px solid var(--gray-200);
}

.btn-outline:hover {
    border-color: var(--blue-dark);
    color: var(--blue-dark);
}

.btn-full {
    width: 100%;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    background: var(--gradient-hero);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(0, 101, 164, 0.05) 0%, transparent 70%);
    animation: float 20s ease-in-out infinite;
}

.hero-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 101, 164, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 101, 164, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-30px, 30px); }
}

.hero-container {
    position: relative;
    z-index: 1;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(0, 101, 164, 0.1) 0%, rgba(124, 205, 244, 0.1) 100%);
    color: var(--blue-dark);
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 24px;
}

.hero-title {
    font-size: 56px;
    margin-bottom: 24px;
}

.hero-title .highlight {
    background: var(--gradient-orange);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 32px;
    line-height: 1.7;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

.tag {
    padding: 8px 16px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    transition: var(--transition-base);
}

.tag:hover {
    border-color: var(--blue-dark);
    color: var(--blue-dark);
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: flex-end;
}

.hero-stats {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.stat-item {
    padding: 24px 32px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition-base);
}

.stat-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-xl);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 700;
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stat-suffix {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 14px;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--gray-300), transparent);
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(1.5); }
}

/* Section Styles */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-label {
    display: inline-block;
    padding: 6px 14px;
    background: linear-gradient(135deg, rgba(0, 101, 164, 0.1) 0%, rgba(124, 205, 244, 0.1) 100%);
    color: var(--blue-dark);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
}

.section-title {
    font-size: 42px;
    margin-bottom: 20px;
}

.section-title .highlight {
    background: var(--gradient-orange);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    font-size: 18px;
    color: var(--gray-500);
}

/* About Section */
.about {
    padding: var(--section-padding);
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content {
    max-width: 540px;
}

.about-lead {
    font-size: 20px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 20px;
}

.about-desc {
    color: var(--gray-500);
    margin-bottom: 40px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 101, 164, 0.1) 0%, rgba(124, 205, 244, 0.1) 100%);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--blue-dark);
}

.feature-text h4 {
    font-size: 16px;
    margin-bottom: 4px;
}

.feature-text p {
    font-size: 14px;
    color: var(--gray-500);
}

.about-visual {
    position: relative;
}

.about-image-wrapper {
    position: relative;
}

.about-image {
    background: var(--gradient-blue);
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4/3;
}

.about-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.about-logo {
    width: 120px;
    height: auto;
    filter: brightness(0) invert(1);
    opacity: 0.9;
}

.about-image-placeholder span {
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
    font-weight: 500;
}

.about-certificates {
    position: absolute;
    bottom: -30px;
    right: -30px;
    display: flex;
    gap: 20px;
}

.cert-item {
    padding: 20px 24px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    text-align: center;
}

.cert-value {
    display: block;
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    background: var(--gradient-orange);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cert-label {
    font-size: 12px;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Services Section */
.services {
    padding: var(--section-padding);
    background: var(--gray-50);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    padding: 40px 32px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-blue);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}

.service-icon svg {
    width: 32px;
    height: 32px;
    color: var(--white);
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

.service-card > p {
    font-size: 15px;
    color: var(--gray-500);
    margin-bottom: 24px;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.service-list li {
    position: relative;
    padding-left: 24px;
    font-size: 14px;
    color: var(--gray-600);
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background: var(--gradient-orange);
    border-radius: 50%;
}

/* Expertise Section */
.expertise {
    padding: var(--section-padding);
    background: var(--white);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.expertise-card {
    padding: 32px 24px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    text-align: center;
    transition: var(--transition-base);
    border: 1px solid transparent;
}

.expertise-card:hover {
    background: var(--white);
    border-color: var(--gray-200);
    box-shadow: var(--shadow-lg);
}

.expertise-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-orange);
    border-radius: var(--radius-md);
    margin: 0 auto 20px;
}

.expertise-icon svg {
    width: 28px;
    height: 28px;
    color: var(--white);
}

.expertise-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
}

.expertise-card p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.6;
}

/* Projects Section */
.projects {
    padding: var(--section-padding);
    background: var(--gray-50);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.project-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.project-image {
    aspect-ratio: 16/10;
    overflow: hidden;
    background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue-mid) 100%);
}

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-placeholder svg {
    width: 48px;
    height: 48px;
    color: rgba(255, 255, 255, 0.5);
}

.project-info {
    padding: 24px;
}

.project-category {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(0, 101, 164, 0.1);
    color: var(--blue-dark);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
}

.project-title {
    font-size: 18px;
    margin-bottom: 8px;
}

.project-location {
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 8px;
}

.project-details {
    font-size: 14px;
    color: var(--gray-600);
    font-weight: 500;
}

/* Contact Section */
.contact {
    padding: var(--section-padding);
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info {
    max-width: 480px;
}

.contact-desc {
    font-size: 18px;
    color: var(--gray-500);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 101, 164, 0.1) 0%, rgba(124, 205, 244, 0.1) 100%);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: var(--blue-dark);
}

.contact-text h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.contact-text p,
.contact-text a {
    font-size: 15px;
    color: var(--gray-600);
}

.contact-text a:hover {
    color: var(--blue-dark);
}

.contact-person {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
}

.person-avatar {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-orange);
    border-radius: 50%;
}

.person-avatar svg {
    width: 28px;
    height: 28px;
    color: var(--white);
}

.person-info h4 {
    font-size: 18px;
    margin-bottom: 4px;
}

.person-info p {
    font-size: 14px;
    color: var(--gray-500);
}

/* Contact Form */
.contact-form-wrapper {
    padding: 40px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 18px;
    font-size: 15px;
    font-family: inherit;
    color: var(--gray-700);
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue-dark);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

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

.form-note {
    font-size: 13px;
    color: var(--gray-500);
    line-height: 1.5;
}

/* Footer */
.footer {
    background: var(--gray-900);
    padding: 80px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

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

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

.footer-logo .logo-title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
    line-height: 1;
}

.footer-logo .logo-subtitle {
    font-size: 11px;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-desc {
    font-size: 15px;
    color: var(--gray-400);
    line-height: 1.7;
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 24px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-links a {
    font-size: 15px;
    color: var(--gray-400);
    transition: var(--transition-fast);
}

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

.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: var(--gray-400);
}

.footer-contact svg {
    flex-shrink: 0;
}

.footer-contact a:hover {
    color: var(--white);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
}

.footer-bottom p {
    font-size: 14px;
    color: var(--gray-500);
}

.footer-slogan {
    font-weight: 600;
    color: var(--gray-400);
}

/* Animation Classes */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="fadeUp"] {
    transform: translateY(40px);
}

[data-animate="fadeRight"] {
    transform: translateX(-40px);
}

[data-animate="fadeLeft"] {
    transform: translateX(40px);
}

[data-animate].animated {
    opacity: 1;
    transform: translate(0);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .hero-container {
        gap: 40px;
    }
    
    .hero-title {
        font-size: 48px;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .expertise-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
}

@media (max-width: 992px) {
    :root {
        --section-padding: 80px 0;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 100px 40px;
        gap: 24px;
        box-shadow: var(--shadow-xl);
        transition: var(--transition-base);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-visual {
        justify-content: center;
    }
    
    .hero-stats {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-content {
        max-width: 100%;
        text-align: center;
    }
    
    .about-features {
        align-items: center;
    }
    
    .about-certificates {
        position: static;
        justify-content: center;
        margin-top: 30px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .contact-info {
        max-width: 100%;
        text-align: center;
    }
    
    .contact-details {
        align-items: center;
    }
    
    .scroll-indicator {
        display: none;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 32px;
    }
    
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-tags {
        justify-content: center;
    }
    
    .stat-item {
        width: 100%;
        justify-content: center;
    }
    
    .stat-number {
        font-size: 36px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-desc {
        max-width: 100%;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrapper {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .btn {
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .cert-item {
        padding: 16px 20px;
    }
    
    .cert-value {
        font-size: 22px;
    }
}

/* Utility Classes */
.highlight {
    background: var(--gradient-orange);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-center {
    text-align: center;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-1 { margin-top: 8px; }
.mb-1 { margin-bottom: 8px; }
.mt-2 { margin-top: 16px; }
.mb-2 { margin-bottom: 16px; }
.mt-3 { margin-top: 24px; }
.mb-3 { margin-bottom: 24px; }
.mt-4 { margin-top: 32px; }
.mb-4 { margin-bottom: 32px; }
.mt-5 { margin-top: 40px; }
.mb-5 { margin-bottom: 40px; }