/* ==========================================================================
   TANYA DIGITAL MARKETING AGENCY - PREMIUM STYLESHEET
   ========================================================================== */

/* --- 1. Global Reset & Core Styling --- */
:root {
    /* Colors */
    --bg-dark: #07080d;
    --bg-card: rgba(15, 18, 28, 0.75);
    --bg-card-hover: rgba(22, 26, 41, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(0, 242, 254, 0.3);
    
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --color-cyan: #00f2fe;
    --color-purple: #9d4edd;
    --color-blue: #3b82f6;
    --color-success: #10b981;
    
    /* Gradients */
    --grad-primary: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    --grad-purple: linear-gradient(135deg, #9d4edd 0%, #7209b7 100%);
    --grad-accent: linear-gradient(90deg, #00f2fe 0%, #9d4edd 100%);
    --grad-dark-card: linear-gradient(145deg, rgba(20, 24, 38, 0.6) 0%, rgba(10, 12, 20, 0.8) 100%);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Layout & Shadows */
    --max-width: 1280px;
    --glow-cyan: 0 0 20px rgba(0, 242, 254, 0.15);
    --glow-purple: 0 0 20px rgba(157, 78, 221, 0.15);
    --glass-blur: blur(12px);
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-dark);
}

body {
    font-family: var(--font-body);
    color: var(--text-secondary);
    background-color: var(--bg-dark);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-cyan);
}

/* --- 2. Typography & Core Layout Elements --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.gradient-text {
    background: var(--grad-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.badge-container {
    margin-bottom: 1.5rem;
}

.hero-badge {
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.2);
    color: var(--color-cyan);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* --- 3. Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 2rem;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 100px;
    cursor: pointer;
    transition: var(--transition);
    gap: 0.75rem;
}

.btn-primary {
    background: var(--grad-primary);
    color: #000;
    border: none;
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0, 242, 254, 0.5);
    color: #000;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* --- 4. Header & Navigation --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(7, 8, 13, 0.6);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.site-header.scrolled {
    padding: 0.75rem 0;
    background: rgba(7, 8, 13, 0.85);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    transition: var(--transition);
}

.site-header.scrolled .header-container {
    height: 65px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.logo-accent {
    background: var(--grad-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-right: 2px;
}

.nav-menu ul {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 0.5rem 0;
}

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

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

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

.nav-cta-btn {
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.3);
    color: var(--color-cyan);
    padding: 0.6rem 1.4rem !important;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 600;
}

.nav-cta-btn:hover {
    background: var(--grad-primary);
    color: #000 !important;
    border-color: transparent;
    box-shadow: var(--glow-cyan);
}

.nav-cta-btn::after {
    display: none;
}

/* Mobile Toggle */
.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 26px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.mobile-nav-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 4px;
    transition: var(--transition);
}

/* --- 5. Hero Section --- */
.hero-section {
    padding: 180px 0 100px 0;
    position: relative;
    overflow: hidden;
}

/* Hero Background Glows */
.hero-section::before {
    content: '';
    position: absolute;
    top: -20%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.08) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: -1;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: 10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(157, 78, 221, 0.08) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: -1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.8rem;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 1.5rem;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 580px;
}

.hero-buttons {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* Hero Dashboard Visual */
.hero-visual {
    position: relative;
    width: 100%;
}

.dashboard-wrapper {
    position: relative;
    border-radius: 20px;
    padding: 6px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
    animation: floatAnimation 6s ease-in-out infinite;
}

.dashboard-mockup {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.dashboard-glow-top {
    position: absolute;
    top: -30px;
    right: -30px;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.2) 0%, rgba(0, 0, 0, 0) 75%);
    z-index: -1;
}

.dashboard-glow-bottom {
    position: absolute;
    bottom: -40px;
    left: -40px;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(157, 78, 221, 0.2) 0%, rgba(0, 0, 0, 0) 75%);
    z-index: -1;
}

@keyframes floatAnimation {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-12px) rotate(0.5deg);
    }
}

/* --- 6. Stats Section --- */
.stats-section {
    padding: 50px 0;
    position: relative;
    z-index: 10;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat-card {
    position: relative;
    background: var(--grad-dark-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    overflow: hidden;
    transition: var(--transition);
}

.stat-card:hover {
    border-color: rgba(0, 242, 254, 0.2);
    transform: translateY(-5px);
    box-shadow: var(--glow-cyan);
}

.stat-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.05) 0%, rgba(0, 0, 0, 0) 70%);
    pointer-events: none;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}

.stat-prefix, .stat-suffix {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-cyan);
    vertical-align: top;
}

.stat-label {
    display: block;
    margin-top: 0.75rem;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    font-weight: 600;
}

/* --- 7. Common Section Layout Headers --- */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem auto;
}

.section-tag {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-cyan);
    text-transform: uppercase;
    letter-spacing: 2px;
    display: inline-block;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: 2.6rem;
    margin-bottom: 1.25rem;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* --- 8. Services Section --- */
.services-section {
    background: rgba(10, 12, 20, 0.4);
    position: relative;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3rem 2.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(0, 242, 254, 0.03) 0%, rgba(0, 0, 0, 0) 60%);
    pointer-events: none;
}

.service-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(0, 242, 254, 0.25);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), var(--glow-cyan);
}

.service-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(0, 242, 254, 0.06);
    border: 1px solid rgba(0, 242, 254, 0.15);
    color: var(--color-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 2rem;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--grad-primary);
    color: #000;
    border-color: transparent;
    box-shadow: var(--glow-cyan);
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.service-features li i {
    color: var(--color-cyan);
    font-size: 0.85rem;
}

/* --- 9. Portfolio Section --- */
.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3.5rem;
}

.filter-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.6rem 1.5rem;
    border-radius: 100px;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--grad-primary);
    color: #000;
    border-color: transparent;
    box-shadow: var(--glow-cyan);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.portfolio-item {
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    border: 1px solid var(--border-color);
    background: #000;
    height: 380px;
    transition: var(--transition);
}

.portfolio-item.hidden {
    display: none;
}

.portfolio-image-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
}

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

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(7, 8, 13, 0.98) 0%, rgba(7, 8, 13, 0.85) 60%, rgba(7, 8, 13, 0.4) 100%);
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-img {
    transform: scale(1.08);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.project-tag {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    color: var(--color-cyan);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
    display: block;
}

.project-title {
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
}

.project-summary {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.project-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    gap: 1rem;
}

.metric-val {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    display: block;
}

.metric-lbl {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 500;
}

/* --- 10. Testimonials Section --- */
.testimonials-section {
    background: rgba(10, 12, 20, 0.3);
}

.testimonials-slider {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.slider-wrapper {
    position: relative;
    min-height: 320px;
}

.testimonial-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 3.5rem;
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: opacity 0.5s ease, visibility 0.5s ease;
    z-index: 1;
}

.testimonial-slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
    position: relative;
}

.testimonial-glow {
    position: absolute;
    top: -50px;
    right: -50px;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(157, 78, 221, 0.08) 0%, rgba(0, 0, 0, 0) 70%);
    pointer-events: none;
}

.stars {
    color: #ffd700;
    display: flex;
    gap: 0.3rem;
    margin-bottom: 1.5rem;
}

.testimonial-text {
    font-size: 1.15rem;
    font-style: italic;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.client-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.client-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--grad-purple);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--glow-purple);
}

.client-name {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-primary);
    font-style: normal;
    display: block;
}

.client-role {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.slider-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 2rem;
    padding: 0 1rem;
}

.slider-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.slider-btn:hover {
    background: var(--grad-primary);
    color: #000;
    border-color: transparent;
    box-shadow: var(--glow-cyan);
}

.slider-dots {
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--color-cyan);
    width: 24px;
    border-radius: 100px;
}

/* --- 11. Lead Capture & Strategy Tool --- */
.contact-section {
    position: relative;
    background: #08090d;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 5rem;
    align-items: flex-start;
}

.contact-desc {
    font-size: 1.05rem;
    margin-bottom: 2.5rem;
}

/* Interactive Proposal Blueprint Display */
.proposal-preview-card {
    background: var(--grad-dark-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    margin-bottom: 3rem;
}

.proposal-preview-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--grad-accent);
}

.preview-glow {
    position: absolute;
    bottom: -50px;
    right: -50px;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.1) 0%, rgba(0, 0, 0, 0) 70%);
}

.preview-title {
    font-size: 1.15rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.preview-title i {
    color: var(--color-cyan);
}

.preview-stat-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.preview-stat {
    background: rgba(0, 0, 0, 0.2);
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.03);
}

.preview-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.preview-value {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

.preview-bar-container {
    background: rgba(0, 0, 0, 0.2);
    padding: 1.25rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.03);
}

.preview-bar-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.preview-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 100px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.preview-bar-fill {
    height: 100%;
    background: var(--grad-primary);
    border-radius: 100px;
    transition: width 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.preview-bar-metrics {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

#roiValue {
    color: var(--color-cyan);
    font-weight: 700;
}

/* Contact Details Info List */
.contact-details-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--color-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
}

.item-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.item-value {
    font-family: var(--font-heading);
    font-weight: 500;
    color: var(--text-primary);
}

.item-value:hover {
    color: var(--color-cyan);
}

/* Lead Proposal Form */
.contact-form-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 28px;
    padding: 3rem;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.proposal-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.group-label, label {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Custom Checkboxes */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.checkbox-container {
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 35px;
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--text-secondary);
    user-select: none;
}

.checkbox-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 1px;
    left: 0;
    height: 22px;
    width: 22px;
    background-color: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    transition: var(--transition);
}

.checkbox-container:hover input ~ .checkmark {
    border-color: rgba(255, 255, 255, 0.2);
}

.checkbox-container input:checked ~ .checkmark {
    background-color: var(--color-cyan);
    border-color: transparent;
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.3);
}

.checkmark::after {
    content: "";
    position: absolute;
    display: none;
}

.checkbox-container input:checked ~ .checkmark::after {
    display: block;
}

.checkbox-container .checkmark::after {
    left: 7px;
    top: 3px;
    width: 5px;
    height: 10px;
    border: solid #000;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-label-text {
    font-family: var(--font-body);
    font-weight: 400;
}

/* Custom Range Slider */
.range-slider-container {
    width: 100%;
    margin-top: 0.5rem;
}

input[type=range] {
    -webkit-appearance: none;
    width: 100%;
    background: transparent;
}

input[type=range]:focus {
    outline: none;
}

input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 6px;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
}

input[type=range]::-webkit-slider-thumb {
    height: 20px;
    width: 20px;
    border-radius: 50%;
    background: var(--grad-primary);
    cursor: pointer;
    -webkit-appearance: none;
    margin-top: -7px;
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.4);
    transition: var(--transition);
}

input[type=range]::-webkit-slider-thumb:hover {
    transform: scale(1.25);
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.7);
}

.slider-val-display {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

#budgetVal {
    font-size: 1.15rem;
    color: var(--color-cyan);
}

/* Inputs and Forms */
.input-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

input[type=text], input[type=email], input[type=url], select {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: var(--transition);
}

select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1.25rem center;
    background-size: 1rem;
    padding-right: 2.5rem;
    cursor: pointer;
}

select option {
    background-color: #0d0f17;
    color: var(--text-primary);
}

input[type=text]:focus, input[type=email]:focus, input[type=url]:focus, select:focus {
    outline: none;
    border-color: var(--color-cyan);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.1);
    background: rgba(0, 0, 0, 0.35);
}

.error-msg {
    color: #ef4444;
    font-size: 0.8rem;
    margin-top: 0.25rem;
    display: none;
}

.form-group.has-error input, .form-group.has-error select {
    border-color: #ef4444;
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.1);
}

.form-group.has-error .error-msg {
    display: block;
}

.btn-submit {
    border: none;
    width: 100%;
    margin-top: 1rem;
}

/* --- 12. Footer --- */
.site-footer {
    border-top: 1px solid var(--border-color);
    background: #050609;
    padding: 80px 0 30px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.5fr;
    gap: 4rem;
    margin-bottom: 50px;
}

.footer-brand .logo {
    display: inline-block;
    margin-bottom: 1.5rem;
}

.footer-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 380px;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--grad-primary);
    color: #000;
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: var(--glow-cyan);
}

.footer-nav h4, .footer-newsletter h4 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.footer-nav ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-nav a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-nav a:hover {
    color: var(--color-cyan);
    padding-left: 4px;
}

.footer-newsletter p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.newsletter-form {
    position: relative;
}

.newsletter-input-group {
    display: flex;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 4px;
    transition: var(--transition);
}

.newsletter-input-group:focus-within {
    border-color: var(--color-cyan);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.1);
}

.newsletter-input-group input {
    background: transparent;
    border: none;
    padding: 0.75rem 1rem;
    flex: 1;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
}

.newsletter-input-group input:focus {
    outline: none;
}

.newsletter-input-group button {
    background: var(--grad-primary);
    border: none;
    border-radius: 8px;
    width: 44px;
    height: 44px;
    color: #000;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.newsletter-input-group button:hover {
    transform: scale(1.05);
    box-shadow: var(--glow-cyan);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-legal-links {
    display: flex;
    gap: 2rem;
}

.footer-legal-links a:hover {
    color: var(--text-secondary);
}

/* --- 13. Modal Dialogs --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(5, 6, 9, 0.85);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 28px;
    padding: 3rem;
    max-width: 480px;
    width: 90%;
    text-align: center;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.6), var(--glow-cyan);
    transform: scale(0.9);
    transition: var(--transition);
}

.modal-overlay.active .modal-card {
    transform: scale(1);
}

.modal-icon {
    width: 70px;
    height: 70px;
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1.5rem auto;
    border: 1px solid rgba(16, 185, 129, 0.25);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.15);
}

.modal-title {
    font-size: 1.6rem;
    margin-bottom: 1rem;
}

.modal-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.modal-close-btn {
    width: 100%;
}

/* --- 14. Responsive Layouts --- */

@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-grid {
        gap: 2rem;
    }
    
    .services-grid, .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
    
    .footer-newsletter {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }
    
    .hero-section {
        padding: 130px 0 60px 0;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .services-grid, .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .portfolio-filters {
        flex-wrap: wrap;
    }
    
    .contact-form-wrapper {
        padding: 2rem;
    }
    
    .input-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    /* Navigation Drawer */
    .mobile-nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(7, 8, 13, 0.98);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        z-index: 999;
        transition: var(--transition);
        border-top: 1px solid var(--border-color);
    }
    
    .site-header.scrolled .nav-menu {
        top: 65px;
        height: calc(100vh - 65px);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu ul {
        flex-direction: column;
        padding: 3rem 2rem;
        align-items: flex-start;
        gap: 2rem;
    }
    
    .nav-link {
        font-size: 1.25rem;
    }
    
    .nav-cta-btn {
        width: 100%;
        text-align: center;
    }
    
    /* Menu Open state for Toggle icon */
    .mobile-nav-toggle.open .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .mobile-nav-toggle.open .bar:nth-child(2) {
        opacity: 0;
    }
    .mobile-nav-toggle.open .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .footer-newsletter {
        grid-column: span 1;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
}

/* --- 15. Scroll Reveal Animation Classes --- */
.scroll-reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}