/* ==========================================================================
   Base Styles & Variables
   ========================================================================== */
:root {
    --bg-darker: #040409;
    --bg-dark: #080811;
    --bg-card: rgba(13, 13, 25, 0.45);
    --border-color: rgba(255, 255, 255, 0.06);
    --border-color-hover: rgba(168, 85, 247, 0.3);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --color-primary: #a855f7;    /* Violet */
    --color-secondary: #6366f1;  /* Indigo */
    --color-accent: #00f2fe;     /* Neon Cyan */
    
    --grad-primary: linear-gradient(135deg, #a855f7 0%, #6366f1 100%);
    --grad-glow: linear-gradient(135deg, rgba(168, 85, 247, 0.15) 0%, rgba(99, 102, 241, 0.15) 100%);
    --grad-accent: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    
    --font-heading: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Outfit', sans-serif;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px rgba(168, 85, 247, 0.25);
    
    --transition: all 0.5s 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-darker);
}

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

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ==========================================================================
   Typography & Helper Classes
   ========================================================================== */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

.highlight {
    color: var(--color-accent);
    text-shadow: 0 0 15px rgba(0, 242, 254, 0.3);
}

/* Background Glows */
.bg-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.4;
}

.bg-glow-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.3) 0%, rgba(99, 102, 241, 0) 70%);
    top: -100px;
    right: -100px;
}

.bg-glow-2 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.25) 0%, rgba(79, 172, 254, 0) 70%);
    top: 600px;
    left: -200px;
}

.bg-glow-3 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.2) 0%, rgba(0, 242, 254, 0) 70%);
    bottom: -100px;
    right: -100px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.85rem 2rem;
    border-radius: 50px;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--grad-accent);
    color: #040409;
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.25);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(0, 242, 254, 0.4), 0 0 15px rgba(0, 242, 254, 0.2);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--color-accent);
    transform: translateY(-3px);
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 1.1rem 2.5rem;
    font-size: 1.05rem;
}

.btn-full {
    width: 100%;
}

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(4, 4, 9, 0.6);
    backdrop-filter: blur(16px) saturate(150%);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 70px;
    position: relative;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    text-decoration: none;
    color: var(--text-primary);
    letter-spacing: -0.03em;
}

.logo-dot {
    color: var(--color-accent);
    animation: blink 1.2s infinite;
}

.nav {
    display: flex;
    align-items: center;
    gap: 2.25rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.25rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--grad-accent);
    transition: var(--transition);
}

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

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

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100%;
    background: rgba(4, 4, 9, 0.98);
    backdrop-filter: blur(20px);
    z-index: 200;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
}

.mobile-menu-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.mobile-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 600;
    transition: var(--transition);
}

.mobile-link:hover {
    color: var(--text-primary);
    transform: scale(1.05);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    padding: 180px 0 100px;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1.2rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    backdrop-filter: blur(10px);
}

.badge-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--grad-accent);
    color: #040409;
    font-size: 0.75rem;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    line-height: 1.1;
    margin-bottom: 2rem;
    font-weight: 800;
    max-width: 900px;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    opacity: 0.8;
    max-width: 750px;
    margin-bottom: 3.5rem;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 5.5rem;
}

.hero-features {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    padding: 1.5rem 3rem;
    border-radius: 24px;
    max-width: 800px;
    width: 100%;
    box-shadow: var(--shadow-md);
}

.hero-feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
}

.feature-val {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--grad-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.feature-lbl {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
    white-space: nowrap;
}

.hero-feature-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section-header {
    text-align: center;
    max-width: 750px;
    margin: 0 auto 5rem;
}

.section-tagline {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    background: var(--grad-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.75rem;
    display: inline-block;
}

.section-title {
    font-size: clamp(2rem, 3.5vw, 3rem);
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

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

/* ==========================================================================
   Cases Section (Portfolio)
   ========================================================================== */
.cases {
    padding: 100px 0;
}

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

.case-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    overflow: hidden;
    backdrop-filter: blur(20px);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.case-card-lg {
    grid-column: span 1;
}

.case-card-md {
    grid-column: span 2;
    flex-direction: row;
}

.case-card-md .case-media {
    flex: 1.2;
    height: 100%;
    min-height: 380px;
}

.case-card-md .case-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 3rem;
}

.cases-row-three {
    grid-column: span 2;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.case-media {
    position: relative;
    width: 100%;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: #000;
    border-bottom: 1px solid var(--border-color);
}

.case-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.85;
    transition: var(--transition);
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(8, 8, 17, 0.9) 0%, rgba(8, 8, 17, 0.2) 70%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: var(--transition);
    pointer-events: none;
}

.play-btn-pulse {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(0, 242, 254, 0.2);
    border: 1px solid var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    box-shadow: 0 0 20px rgba(0, 242, 254, 0.4);
    animation: pulse 2s infinite;
}

.overlay-text {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    font-weight: 500;
}

.case-info {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.case-meta {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.case-tag {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.case-title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
    transition: var(--transition);
}

.case-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.case-price-comparison {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0.5rem 1rem;
    border-radius: 12px;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    width: fit-content;
}

.price-studios {
    color: var(--text-muted);
    text-decoration: line-through;
    position: relative;
    cursor: pointer;
    display: inline-block;
}

.price-tooltip {
    visibility: hidden;
    width: 220px;
    background-color: #0c0c16;
    color: #fff;
    text-align: center;
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    position: absolute;
    z-index: 100;
    bottom: 125%; /* Position above the text */
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s, visibility 0.3s;
    border: 1px solid var(--border-color-hover);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    font-size: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 500;
    text-decoration: none !important;
    pointer-events: auto; /* Allow hovering/clicking the link inside tooltip */
}

.price-tooltip::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #0c0c16 transparent transparent transparent;
}

.price-tooltip a {
    color: var(--color-accent) !important;
    text-decoration: underline !important;
    font-weight: 700;
    display: inline-block;
    margin-left: 0.25rem;
    transition: var(--transition);
}

.price-tooltip a:hover {
    text-shadow: 0 0 8px rgba(0, 242, 254, 0.5);
}

.price-studios:hover .price-tooltip {
    visibility: visible;
    opacity: 1;
}

.video-fullscreen-btn {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    background: rgba(8, 8, 17, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 15;
    transition: var(--transition);
    opacity: 0; /* hidden by default, visible on card hover */
}

.case-card:hover .video-fullscreen-btn {
    opacity: 1;
}

.video-fullscreen-btn:hover {
    background: var(--grad-accent);
    color: #040409;
    border-color: transparent;
    box-shadow: 0 0 12px rgba(0, 242, 254, 0.4);
    transform: scale(1.1);
}

.price-studios .price-val {
    font-weight: 500;
}

.price-divider {
    display: inline-block;
    width: 1px;
    height: 14px;
    background: rgba(255, 255, 255, 0.1);
}

.price-vlad {
    color: var(--text-primary);
    font-weight: 600;
}

.price-vlad .price-val {
    background: var(--grad-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

.price-badge {
    background: rgba(0, 242, 254, 0.1);
    border: 1px solid rgba(0, 242, 254, 0.2);
    color: var(--color-accent);
    padding: 0.15rem 0.45rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.75rem;
}

.case-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}

.case-tech span {
    font-size: 0.75rem;
    color: var(--text-muted);
    border: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(255, 255, 255, 0.01);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}

/* Case Card Hover Effects */
.case-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-md), 0 10px 40px rgba(168, 85, 247, 0.05);
}

.case-card:hover .case-video {
    opacity: 1;
    transform: scale(1.02);
}

.case-card:hover .video-overlay {
    opacity: 0;
}

.case-card:hover .case-title {
    color: var(--color-accent);
}

/* Price Explanation Block */
.price-explanation-box {
    margin: 4rem auto 0;
    max-width: 850px;
    background: rgba(4, 4, 9, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 24px;
    padding: 2.5rem;
    display: flex;
    gap: 1.75rem;
    align-items: flex-start;
    backdrop-filter: blur(20px);
    transition: var(--transition);
}

.price-explanation-icon {
    font-size: 2.2rem;
    color: var(--color-accent);
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.price-explanation-content {
    flex: 1;
}

.price-explanation-title {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 700;
}

.price-explanation-text {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
}

/* ==========================================================================
   What I Create (Services)
   ========================================================================== */
.what-i-create {
    padding: 100px 0;
    position: relative;
}

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

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3rem;
    backdrop-filter: blur(20px);
    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 left, rgba(0, 242, 254, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.service-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: var(--grad-accent);
    color: #040409;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.2);
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.service-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 2rem;
    min-height: 80px;
}

.service-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.service-list li i {
    font-size: 0.85rem;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-md), 0 0 30px rgba(0, 242, 254, 0.03);
}

/* ==========================================================================
   Advantages & Tech DevOps Box
   ========================================================================== */
.advantages {
    padding: 100px 0;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.adv-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2.5rem;
    backdrop-filter: blur(20px);
    transition: var(--transition);
}

.adv-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.adv-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(168, 85, 247, 0.1);
    color: var(--color-primary);
    border: 1px solid rgba(168, 85, 247, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.adv-title {
    font-size: 1.15rem;
    font-weight: 700;
}

.adv-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.adv-card:hover {
    transform: translateY(-3px);
    border-color: rgba(168, 85, 247, 0.3);
}

/* DevOps block */
.tech-service-box {
    display: flex;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 28px;
    overflow: hidden;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
    margin-top: 2rem;
}

.tech-service-content {
    flex: 1.2;
    padding: 4rem;
}

.tech-service-badge {
    display: inline-block;
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.2);
    color: var(--color-accent);
    font-size: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.35rem 1rem;
    border-radius: 50px;
    margin-bottom: 1.5rem;
}

.tech-service-content h3 {
    font-size: 2rem;
    margin-bottom: 1.25rem;
}

.tech-service-content p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.tech-service-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.tech-service-item {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
}

.tech-service-item i {
    font-size: 1rem;
    margin-top: 0.2rem;
}

.tech-service-item span {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.tech-service-visual {
    flex: 1;
    background: #020205;
    padding: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-left: 1px solid var(--border-color);
}

.terminal-mock {
    width: 100%;
    background: #06060c;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    font-family: monospace;
    font-size: 0.85rem;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0,0,0,0.8);
}

.terminal-header {
    background: #0d0d18;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.term-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 6px;
    display: inline-block;
}

.term-dot-red { background: #ff5f56; }
.term-dot-yellow { background: #ffbd2e; }
.term-dot-green { background: #27c93f; }

.term-title {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-left: 10px;
}

.terminal-body {
    padding: 1.25rem;
    color: #d1d5db;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.term-prompt {
    color: var(--color-accent);
}

.term-success {
    color: #34d399;
}

.term-info {
    color: #60a5fa;
}

.term-blink {
    display: inline-block;
    width: 8px;
    height: 15px;
    background: #fff;
    animation: cursor-blink 1s infinite;
}

/* ==========================================================================
   Tech Stack Section
   ========================================================================== */
.stack {
    padding: 100px 0;
}

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

.stack-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3rem;
    backdrop-filter: blur(20px);
    transition: var(--transition);
}

.stack-cat-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.stack-cat-title i {
    color: var(--color-accent);
}

.stack-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.stack-item {
    font-size: 0.85rem;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    padding: 0.45rem 1rem;
    border-radius: 8px;
    transition: var(--transition);
}

.stack-item:hover {
    background: var(--grad-accent);
    color: #040409;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.2);
}

.stack-category:hover {
    border-color: var(--border-color-hover);
    transform: translateY(-3px);
}

/* ==========================================================================
   Contacts Section
   ========================================================================== */
.contacts {
    padding: 100px 0 140px;
    position: relative;
}

.contacts-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 4rem;
    align-items: start;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1.5rem 2rem;
    border-radius: 20px;
    text-decoration: none;
    transition: var(--transition);
    backdrop-filter: blur(20px);
}

.contact-card-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: var(--color-accent);
    transition: var(--transition);
}

.contact-card-content {
    display: flex;
    flex-direction: column;
}

.contact-card-lbl {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-card-val {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 0.15rem;
}

.contact-card:hover {
    border-color: var(--border-color-hover);
    transform: translateX(6px);
}

.contact-card:hover .contact-card-icon {
    background: var(--grad-accent);
    color: #040409;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.25);
}

.contacts-form-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3rem;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-input {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 0.85rem 1.25rem;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(255, 255, 255, 0.04);
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.05);
}

.form-textarea {
    min-height: 140px;
    resize: vertical;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 0;
    background: #020205;
}

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

.footer-copy {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-socials {
    display: flex;
    gap: 1.5rem;
}

.footer-socials a {
    color: var(--text-muted);
    font-size: 1.15rem;
    transition: var(--transition);
}

.footer-socials a:hover {
    color: var(--color-accent);
    transform: translateY(-2px);
}

/* ==========================================================================
   Animations
   ========================================================================== */
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

@keyframes cursor-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(0, 242, 254, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(0, 242, 254, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 242, 254, 0); }
}

/* Fade In animations applied by JS (Intersection Observer) */
[data-animate] {
    opacity: 0;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.8s ease;
}

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

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

/* ==========================================================================
   Responsive Media Queries
   ========================================================================== */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .case-card-md {
        grid-column: span 1;
        flex-direction: column;
    }
    
    .cases-row-three {
        grid-column: span 1;
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-service-box {
        flex-direction: column;
    }
    
    .tech-service-visual {
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding: 3rem 1.5rem;
    }
    
    .stack-grid {
        grid-template-columns: 1fr;
    }
    
    .contacts-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .mobile-nav-toggle {
        display: block;
        position: absolute;
        right: 1.5rem;
        top: 50%;
        transform: translateY(-50%);
    }
    
    .hero-features {
        flex-direction: column;
        padding: 1.5rem 2rem;
        gap: 1.5rem;
    }
    
    .hero-feature-divider {
        width: 80%;
        height: 1px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
    
    .tech-service-content {
        padding: 2.5rem 1.5rem;
    }
    
    .tech-service-list {
        grid-template-columns: 1fr;
    }
}