/* ========================================
   PETRA DRAFTING ENGINEERING SERVICES
   Main Stylesheet - Mobile First Approach
   ======================================== */

/* CSS Custom Properties (Variables) */
:root {
    /* Color Palette */
    --color-primary: #0a1627;
    --color-accent: #fe0039;
    --color-light: #f5f5f5;
    --color-dark: #333;
    --color-white: #fff;
    --color-gray: #666;
    --color-light-gray: #e0e0e0;
    --color-border: #ddd;

    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --font-weight-normal: 400;
    --font-weight-bold: 700;
    --font-weight-semibold: 600;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;

    /* Border & Shadows */
    --border-radius: 4px;
    --border-radius-lg: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --box-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --box-shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.2);

    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
}

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

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-white);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: clamp(1.1rem, 2.5vw, 1.5rem); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-gray);
}

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

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

ul, ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

li {
    margin-bottom: var(--spacing-sm);
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-heading);
    font-weight: var(--font-weight-semibold);
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    line-height: 1;
}

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

.btn-primary:hover {
    background-color: #d10030;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(254, 0, 57, 0.25);
}

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

.btn-secondary:hover {
    background-color: #1a2f4a;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(10, 22, 39, 0.25);
}

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

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

.btn-submit {
    width: 100%;
    padding: var(--spacing-lg);
    font-size: 1.1rem;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

.header {
    background-color: var(--color-white);
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.logo a:hover {
    opacity: 0.8;
}

.logo-img {
    width: 160px;
    height: auto;
    object-fit: contain;
    max-height: 50px;
}

.nav {
    position: relative;
}

.nav-menu {
    display: none;
    list-style: none;
    padding: 0;
    margin: 0;
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--color-white);
    box-shadow: var(--box-shadow-lg);
    border-radius: var(--border-radius);
    min-width: 250px;
    padding: var(--spacing-md);
}

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

.nav-link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-dark);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    background-color: var(--color-accent);
    color: var(--color-white);
}

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

.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--color-white);
    box-shadow: var(--box-shadow-lg);
    border-radius: var(--border-radius);
    min-width: 200px;
    z-index: 1001;
    list-style: none;
    padding: var(--spacing-sm) 0;
    margin: 0;
}

.nav-dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-dark);
    text-decoration: none;
    transition: var(--transition);
    border-radius: 0;
}

.dropdown-link:hover {
    background-color: var(--color-accent);
    color: var(--color-white);
}

.cta-nav {
    background-color: var(--color-accent);
    color: var(--color-white);
    border-radius: var(--border-radius);
}

.cta-nav:hover {
    background-color: #d10030;
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    gap: 4px;
}

.hamburger {
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    width: 25px;
    height: 3px;
    background-color: var(--color-primary);
    transition: var(--transition);
}

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

.hero {
    background: linear-gradient(135deg, rgba(10, 22, 39, 0.85) 0%, rgba(26, 42, 71, 0.85) 100%), url('images/hero-bg.jpg');
    background-color: var(--color-primary);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--color-white);
    min-height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(10, 22, 39, 0.3) 0%, rgba(26, 42, 71, 0.3) 100%);
    opacity: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.9);
}

/* ========================================
   PAGE HEADERS
   ======================================== */

.page-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, #1a2f4a 100%);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.page-title {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0;
}

/* ========================================
   SECTIONS
   ======================================== */

section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

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

.why-choose-us {
    background-color: var(--color-light);
}

.features-grid {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: 1fr;
}

.feature-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.feature-title {
    margin-bottom: var(--spacing-md);
}

.feature-description {
    color: var(--color-gray);
}

/* ========================================
    TESTIMONIALS SECTION - BRAND NEW DESIGN
    ======================================== */

.testimonials {
    background: linear-gradient(135deg, var(--color-white) 0%, #f8fafc 100%);
    padding: var(--spacing-xxl) 0;
    position: relative;
    overflow: hidden;
}

.testimonials::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(254, 0, 57, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(10, 22, 39, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

/* Header Styling */
.testimonials-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
    position: relative;
    z-index: 2;
}

.section-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-accent), #ff1744);
    color: var(--color-white);
    font-size: 0.8rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 8px 16px;
    border-radius: 20px;
    margin-bottom: var(--spacing-sm);
}

.testimonials .section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.section-description {
    color: var(--color-gray);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Slider Container */
.testimonials-slider {
    position: relative;
    max-width: 900px;
    margin: 0 auto var(--spacing-xxl);
    overflow: hidden;
    border-radius: 24px;
}

.testimonials-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}

.testimonial-item {
    min-width: 100%;
    opacity: 0.3;
    transform: scale(0.95);
    transition: all 0.6s ease;
}

.testimonial-item.active {
    opacity: 1;
    transform: scale(1);
}

/* Testimonial Card Design */
.testimonial-card {
    background: var(--color-white);
    border-radius: 24px;
    padding: var(--spacing-xxl);
    margin: 0 var(--spacing-md);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.06);
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
}

/* Card Header */
.testimonial-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
}

.rating {
    display: flex;
    gap: 4px;
}

.star {
    width: 20px;
    height: 20px;
    color: #fbbf24;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

.quote-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    flex-shrink: 0;
}

.quote-icon svg {
    width: 20px;
    height: 20px;
}

/* Testimonial Text */
.testimonial-text {
    font-size: 1.2rem;
    line-height: 1.7;
    color: var(--color-dark);
    margin-bottom: var(--spacing-xl);
    font-style: italic;
    position: relative;
    text-align: left;
}

/* Card Footer */
.testimonial-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.author-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border: 3px solid var(--color-light);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.avatar-silhouette {
    width: 32px;
    height: 32px;
    color: var(--color-white);
    opacity: 0.9;
}

.author-info {
    text-align: left;
}

.author-name {
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
    font-size: 1.1rem;
    margin: 0 0 4px 0;
    font-style: normal;
}

.author-role {
    color: var(--color-accent);
    font-weight: var(--font-weight-semibold);
    font-size: 0.9rem;
    margin: 0 0 2px 0;
}

.author-company {
    color: var(--color-gray);
    font-size: 0.85rem;
    margin: 0;
}

/* Company logo section removed */

/* Controls */
.testimonials-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xl);
    position: relative;
    z-index: 2;
}

.slider-btn {
    width: 56px;
    height: 56px;
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--color-primary);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.slider-btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
    transform: scale(1.1);
    box-shadow: 0 12px 35px rgba(254, 0, 57, 0.25);
}

.slider-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.slider-btn svg {
    width: 24px;
    height: 24px;
}

.slider-pagination {
    display: flex;
    gap: var(--spacing-sm);
}

.pagination-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
    background: var(--color-white);
    cursor: pointer;
    transition: all 0.3s ease;
}

.pagination-dot:hover {
    border-color: var(--color-accent);
    transform: scale(1.2);
}

.pagination-dot.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: scale(1.1);
}

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

@media (max-width: 768px) {
    .testimonials {
        padding: var(--spacing-xl) 0;
    }
    
    .testimonials-header {
        margin-bottom: var(--spacing-lg);
        padding: 0 var(--spacing-md);
    }
    
    .section-badge {
        font-size: 0.75rem;
        padding: 6px 12px;
    }
    
    .testimonials .section-title {
        font-size: 2rem;
        margin-bottom: var(--spacing-xs);
    }
    
    .section-description {
        font-size: 1rem;
        padding: 0 var(--spacing-sm);
    }
    
    .testimonials-slider {
        margin: 0 var(--spacing-sm) var(--spacing-lg);
        border-radius: 20px;
    }
    
    .testimonial-card {
        padding: var(--spacing-lg);
        margin: 0;
        border-radius: 20px;
    }
    
    .testimonial-header {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
        text-align: center;
    }
    
    .rating {
        order: 2;
        justify-content: center;
    }
    
    .star {
        width: 18px;
        height: 18px;
    }
    
    .quote-icon {
        width: 44px;
        height: 44px;
        order: 1;
    }
    
    .quote-icon svg {
        width: 18px;
        height: 18px;
    }
    
    .testimonial-text {
        font-size: 1rem;
        line-height: 1.6;
        text-align: center;
        margin-bottom: var(--spacing-lg);
    }
    
    .testimonial-footer {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .author-profile {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .author-avatar {
        width: 50px;
        height: 50px;
    }
    
    .avatar-silhouette {
        width: 28px;
        height: 28px;
    }
    
    .author-info {
        text-align: center;
    }
    
    .author-name {
        font-size: 1rem;
    }
    
    .author-role {
        font-size: 0.85rem;
    }
    
    .author-company {
        font-size: 0.8rem;
    }
    
    /* Company logo removed from mobile */
    
    .testimonials-controls {
        gap: var(--spacing-lg);
        padding: 0 var(--spacing-md);
        justify-content: center;
    }
    
    .slider-btn {
        display: none; /* Hide arrows on mobile */
    }
    
    .pagination-dot {
        width: 12px;
        height: 12px;
    }
}

@media (max-width: 480px) {
    .testimonials-slider {
        margin: 0 var(--spacing-xs) var(--spacing-md);
    }
    
    .testimonial-card {
        padding: var(--spacing-md);
    }
    
    .testimonial-text {
        font-size: 0.95rem;
    }
    
    .testimonials-controls {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .slider-pagination {
        order: -1;
    }
}

.carousel-nav svg {
    width: 24px;
    height: 24px;
}

.carousel-prev {
    left: -22px;
}

.carousel-next {
    right: -22px;
}

@media (max-width: 768px) {
    .testimonial-wrapper {
        max-width: 100%;
        margin: 0 var(--spacing-md);
    }
    
    .testimonial-slide {
        padding: var(--spacing-md);
        margin: 0 var(--spacing-sm);
        min-height: 240px;
    }
    
    .testimonial-slide blockquote {
        font-size: 1rem;
    }
    
    .carousel-nav {
        width: 36px;
        height: 36px;
    }
    
    .carousel-nav svg {
        width: 20px;
        height: 20px;
    }
    
    .carousel-prev {
        left: -18px;
    }
    
    .carousel-next {
        right: -18px;
    }
}

/* ========================================
    CLIENT LOGOS SECTION
    ======================================== */

.clients {
    padding: var(--spacing-xl) 0;
    text-align: center;
    background-color: var(--color-light);
}

.clients h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.5rem;
}

.client-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
    filter: grayscale(100%);
    opacity: 0.7;
}

.client-logo {
    height: 40px;
    width: auto;
    transition: all 0.3s ease;
}

.client-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
}

/* ========================================
    ABOUT PAGE STYLES
    ======================================== */

.about-section {
    padding: var(--spacing-xl) 0;
}

.about-section:nth-child(even) {
    background-color: var(--color-light);
}

.content-block {
    max-width: 800px;
    margin: 0 auto;
}

.services-list {
    margin: var(--spacing-lg) 0;
}

.process-list {
    margin: var(--spacing-lg) 0;
}

.partnership-quote {
    font-style: italic;
    font-size: 1.1rem;
    padding: var(--spacing-lg);
    background-color: var(--color-light);
    border-left: 4px solid var(--color-accent);
    margin: var(--spacing-lg) 0;
    color: var(--color-dark);
}

/* ========================================
   SERVICES PAGE STYLES
   ======================================== */

.services-overview {
    background-color: var(--color-light);
}

.services-grid {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: 1fr;
}

.service-card {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(10, 22, 39, 0.15);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.service-title {
    margin-bottom: var(--spacing-md);
}

.service-description {
    margin-bottom: var(--spacing-lg);
    color: var(--color-gray);
}

.service-features {
    margin-bottom: var(--spacing-lg);
}

.service-features li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-gray);
}

/* ========================================
   SERVICE HERO BANNERS
   ======================================== */

.service-hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, #1a2f4a 100%);
    color: var(--color-white);
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.service-hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.service-hero-title {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.service-hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
}

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

.key-features {
    background-color: var(--color-light);
}

.features-list {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: 1fr;
}

.feature-item {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
}

.feature-item h3 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.feature-item p {
    color: var(--color-gray);
    margin-bottom: 0;
}

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

.service-cta {
    background-color: var(--color-primary);
    color: var(--color-white);
    text-align: center;
}

.service-cta .section-title {
    color: var(--color-white);
}

.service-cta p {
    color: rgba(255, 255, 255, 0.9);
}

/* ========================================
   PORTFOLIO PAGE STYLES
   ======================================== */

.portfolio-filter {
    background-color: var(--color-light);
    padding: var(--spacing-lg) 0;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-btn {
    background-color: var(--color-white);
    border: 2px solid var(--color-border);
    color: var(--color-dark);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-body);
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
}

.portfolio-grid {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: 1fr;
}

.portfolio-item {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(10, 22, 39, 0.15);
}

.portfolio-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

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

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

.portfolio-content {
    padding: var(--spacing-lg);
}

.project-title {
    margin-bottom: var(--spacing-sm);
}

.project-description {
    margin-bottom: var(--spacing-md);
    color: var(--color-gray);
}

.project-details {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.project-type,
.project-location {
    background-color: var(--color-light);
    color: var(--color-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: var(--font-weight-semibold);
}

/* ========================================
   FORMS
   ======================================== */

.quote-form-section,
.contact-section {
    background-color: var(--color-light);
}

.form-container {
    max-width: 600px;
    margin: 0 auto;
}

.form-intro {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.form-intro h2 {
    margin-bottom: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px rgba(254, 0, 57, 0.2);
}

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

.quote-info {
    margin-top: var(--spacing-xl);
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: 1fr;
}

.info-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
}

.info-card h3 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-md);
}

.benefits-list li {
    color: var(--color-gray);
}

/* ========================================
   CONTACT PAGE STYLES
   ======================================== */

.contact-content {
    display: grid;
    gap: var(--spacing-xl);
    grid-template-columns: 1fr;
}

.contact-info h2 {
    margin-bottom: var(--spacing-md);
}

.contact-methods {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: 1fr;
    margin-top: var(--spacing-lg);
}

.contact-method h3 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.contact-method p {
    color: var(--color-gray);
    margin-bottom: 0;
}

.contact-method a {
    color: var(--color-accent);
}

.contact-form-container h2 {
    margin-bottom: var(--spacing-lg);
}

.faq-section {
    background-color: var(--color-white);
}

.faq-grid {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: 1fr;
}

.faq-item {
    background-color: var(--color-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border-left: 4px solid var(--color-accent);
}

.faq-item h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.faq-item p {
    color: var(--color-gray);
    margin-bottom: 0;
}

/* ========================================
    SOCIAL MEDIA SECTION
    ======================================== */

.social-media {
    background-color: var(--color-light);
    text-align: center;
}

.social-intro {
    font-size: 1.1rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
    color: var(--color-primary);
    text-decoration: none;
}

.social-link:hover {
    transform: translateY(-3px);
    color: var(--color-accent);
}

.social-icon {
    width: 32px;
    height: 32px;
}

.social-link span {
    font-size: 0.9rem;
    font-weight: var(--font-weight-semibold);
}

/* ========================================
    CTA SECTIONS
    ======================================== */

.cta-section,
.portfolio-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, #1a2a47 100%);
    color: var(--color-white);
    text-align: center;
    padding: var(--spacing-xxl) 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before,
.portfolio-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.03)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.03)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.02)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.02)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.02)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.6;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-title {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: var(--font-weight-bold);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.cta-text {
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-xl);
    font-size: 1.1rem;
    line-height: 1.6;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn {
    min-width: 160px;
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition);
}

.cta-buttons .btn-primary {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    box-shadow: 0 4px 15px rgba(254, 0, 57, 0.3);
}

.cta-buttons .btn-primary:hover {
    background-color: #d10030;
    border-color: #d10030;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(254, 0, 57, 0.4);
}

.cta-buttons .btn-outline {
    background-color: transparent;
    border: 2px solid var(--color-white);
    color: var(--color-white);
}

.cta-buttons .btn-outline:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

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

.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xxl) 0 var(--spacing-xl) 0;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    text-align: center;
    padding-top: var(--spacing-md);
}

.footer-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.footer-info h3 {
    font-size: 1.6rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
    font-weight: var(--font-weight-bold);
}

.footer-info p {
    opacity: 0.9;
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-sm);
}

.footer-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.footer-social-link:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 20px rgba(254, 0, 57, 0.3);
}

.footer-social-icon {
    width: 20px;
    height: 20px;
}

.footer-links-column {
    text-align: center;
}

.footer-links-column h4 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
    font-weight: var(--font-weight-bold);
    margin-top: var(--spacing-sm);
}

.footer-links-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links-column li {
    margin-bottom: var(--spacing-xs);
}

.footer-links-column a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
    position: relative;
}

.footer-links-column a::before {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 0;
    background-color: var(--color-accent);
    transition: var(--transition);
}

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

.footer-links-column a:hover::before {
    width: 100%;
}



.footer-info p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0;
}

.footer-logos {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.footer-logos {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.cert-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    opacity: 0.7;
    transition: var(--transition);
}

.cert-logo:hover {
    opacity: 1;
    transform: scale(1.1);
}

/* Mobile footer certification logos centering */
@media (max-width: 767px) {
    .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .footer-copyright {
        margin-bottom: 0;
        order: 2;
    }
    
    .footer-logos {
        order: 1;
        justify-content: center;
        margin-bottom: var(--spacing-sm);
    }
}

/* ========================================
    RESPONSIVE DESIGN - TABLET (768px+)
    ======================================== */

@media (min-width: 768px) {
    .hero {
        background-attachment: fixed;
    }
}

@media (max-width: 767px) {
    .hero {
        background-attachment: scroll;
        background-size: cover;
    }
    
    .dropdown-menu {
        position: static;
        background-color: var(--color-light);
        box-shadow: none;
        border-radius: 0;
        min-width: auto;
        margin-left: var(--spacing-md);
        border-left: 2px solid var(--color-accent);
    }
    
    .dropdown-link {
        padding: var(--spacing-sm) var(--spacing-md);
        color: var(--color-dark);
    }
    
    .dropdown-link:hover {
        background-color: var(--color-accent);
        color: var(--color-white);
    }
}

/* ========================================
    RESPONSIVE DESIGN - TABLET (768px+)
    ======================================== */

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }

    .nav-toggle {
        display: none;
    }

    .nav-menu {
        display: flex;
        position: static;
        background: none;
        box-shadow: none;
        min-width: auto;
        padding: 0;
        gap: var(--spacing-sm);
    }
    
    .dropdown-menu {
        position: absolute;
        top: 100%;
        left: 0;
        background-color: var(--color-white);
        box-shadow: var(--box-shadow-lg);
        border-radius: var(--border-radius);
        min-width: 200px;
        z-index: 1001;
    }
    
    .logo-img {
        width: 200px;
        max-height: 60px;
    }

    .nav-link {
        padding: var(--spacing-sm) var(--spacing-md);
        border-radius: var(--border-radius);
    }

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

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

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

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

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

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

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

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

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

    .footer-main {
        grid-template-columns: 1fr 1fr 1fr;
        gap: var(--spacing-lg);
        text-align: left;
    }
    
    .footer-info {
        align-items: flex-start;
    }
    
    .footer-social {
        justify-content: flex-start;
    }
    
    .footer-links-column {
        text-align: left;
    }
    
    .footer-bottom {
        justify-content: space-between;
    }
    
    .footer-copyright {
        text-align: left;
    }
}

/* ========================================
   RESPONSIVE DESIGN - DESKTOP (1024px+)
   ======================================== */

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .cta-buttons {
        flex-direction: row;
    }
    
    .cta-section,
    .portfolio-cta {
        padding: var(--spacing-xl) 0;
    }
    
    .cta-title {
        font-size: clamp(1.5rem, 3.5vw, 2rem);
    }
    
    .cta-text {
        font-size: 1rem;
    }
}

/* ========================================
   RESPONSIVE DESIGN - LARGE DESKTOP (1200px+)
   ======================================== */

@media (min-width: 1200px) {
    .portfolio-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .features-list {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

/* Focus states */
.btn:focus,
.form-input:focus,
.form-select:focus,
.form-textarea:focus,
.nav-link:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-primary: #000;
        --color-accent: #ff0000;
        --color-gray: #333;
        --color-border: #000;
    }
}

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

/* ========================================
    NOTIFICATION SYSTEM
    ======================================== */

.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    max-width: 400px;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    animation: slideInFromRight 0.4s ease-out;
}

.notification-success {
    background: linear-gradient(135deg, #10b981, #059669);
    color: var(--color-white);
}

.notification-error {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: var(--color-white);
}

.notification-content {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
}

.notification-icon {
    font-size: 1.2rem;
    font-weight: var(--font-weight-bold);
    flex-shrink: 0;
    margin-top: 2px;
}

.notification-message {
    flex: 1;
    font-size: 0.9rem;
    line-height: 1.5;
}

.notification-close {
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.2s ease;
    flex-shrink: 0;
}

.notification-close:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

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

/* Mobile notification adjustments */
@media (max-width: 768px) {
    .notification {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
    }
    
    .notification-content {
        padding: var(--spacing-sm);
    }
    
    .notification-message {
        font-size: 0.85rem;
    }
}

/* ========================================
    PRINT STYLES
    ======================================== */

@media print {
    nav, .cta-button, .carousel-dots, .client-logos, footer .social-links {
        display: none !important;
    }
    
    .header,
    .nav,
    .footer,
    .btn,
    .nav-toggle {
        display: none !important;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
        color: #000;
        background: #fff;
    }

    .hero {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }

    section {
        padding: var(--spacing-md) 0;
        page-break-inside: avoid;
    }

    .container {
        width: 100%;
        max-width: none;
        padding: 0;
    }
    
    a {
        color: #000;
        text-decoration: underline;
    }
}