/* ========================================
   Global Styles & CSS Variables
   ======================================== */

:root {
    /* Color Palette */
    --color-bg-primary: #0f0a1e;
    --color-bg-secondary: #1a1230;
    --color-bg-card: rgba(26, 18, 48, 0.6);
    --color-text-primary: #ffffff;
    --color-text-secondary: #b8a5d8;
    --color-text-muted: #8b7aa8;
    
    /* Gradient Colors */
    --gradient-primary: linear-gradient(135deg, #7c3aed 0%, #2563eb 100%);
    --gradient-secondary: linear-gradient(135deg, #8b5cf6 0%, #3b82f6 100%);
    --gradient-hover: linear-gradient(135deg, #9333ea 0%, #1d4ed8 100%);
    --gradient-orb-1: radial-gradient(circle, rgba(124, 58, 237, 0.4) 0%, transparent 70%);
    --gradient-orb-2: radial-gradient(circle, rgba(37, 99, 235, 0.3) 0%, transparent 70%);
    
    /* Shadows & Effects */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 30px rgba(124, 58, 237, 0.3);
    --shadow-glow-hover: 0 0 40px rgba(124, 58, 237, 0.5);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ========================================
   Reset & Base Styles
   ======================================== */

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

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

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

/* ========================================
   Container & Layout
   ======================================== */

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

/* ========================================
   Typography
   ======================================== */

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

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-normal);
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    background: var(--gradient-hover);
    box-shadow: var(--shadow-glow-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 2px solid rgba(124, 58, 237, 0.5);
}

.btn-secondary:hover {
    background: rgba(124, 58, 237, 0.1);
    border-color: rgba(124, 58, 237, 1);
}

.btn-whatsapp {
    background: #25D366;
    color: white;
}

.btn-whatsapp:hover {
    background: #20ba5a;
    transform: translateY(-2px);
}

.btn-call {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition-normal);
}

.btn-call:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-hover);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ========================================
   Navigation
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 10, 30, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(124, 58, 237, 0.1);
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(15, 10, 30, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-text-primary);
}

.logo i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 1.75rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--color-text-secondary);
    font-weight: 500;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-normal);
}

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

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

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

/* ========================================
   Hero Section
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 0 4rem;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--gradient-orb-1);
    top: -200px;
    right: -100px;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--gradient-orb-2);
    bottom: -150px;
    left: -150px;
    animation-delay: -5s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: var(--gradient-orb-1);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0);
    }
    33% {
        transform: translate(50px, -50px);
    }
    66% {
        transform: translate(-50px, 50px);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: rgba(124, 58, 237, 0.2);
    border: 1px solid rgba(124, 58, 237, 0.3);
    border-radius: 50px;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.hero-badge i {
    color: #fbbf24;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(124, 58, 237, 0.2);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-text-secondary);
    font-size: 1.5rem;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

/* ========================================
   Section Styles
   ======================================== */

section {
    padding: 6rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(124, 58, 237, 0.2);
    border: 1px solid rgba(124, 58, 237, 0.3);
    border-radius: 50px;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.section-title {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   About Section
   ======================================== */

.about {
    background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
}

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

.about-text {
    margin-bottom: 3rem;
}

.about-intro {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-description {
    color: var(--color-text-muted);
    line-height: 1.8;
}

.about-features {
    display: grid;
    gap: 2rem;
}

.feature-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(124, 58, 237, 0.1);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.feature-item:hover {
    transform: translateY(-5px);
    border-color: rgba(124, 58, 237, 0.3);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    font-size: 1.5rem;
    color: white;
}

.feature-content h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.feature-content p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* ========================================
   Services Section
   ======================================== */

.services {
    background: var(--color-bg-secondary);
    position: relative;
    overflow: hidden;
    padding: 4rem 0 6rem 0;
}

/* Service Filters */
.service-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(124, 58, 237, 0.1);
    border: 1px solid rgba(124, 58, 237, 0.2);
    border-radius: 50px;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    white-space: nowrap;
}

.filter-btn:hover {
    background: rgba(124, 58, 237, 0.2);
    border-color: rgba(124, 58, 237, 0.4);
    color: var(--color-text-primary);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    box-shadow: var(--shadow-glow);
}

.filter-btn i {
    font-size: 1rem;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    position: relative;
    padding: 2rem;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(124, 58, 237, 0.1);
    border-radius: var(--radius-lg);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

/* Card Glow Effect */
.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.6s ease;
    pointer-events: none;
}

.service-card:hover .card-glow {
    opacity: 1;
    animation: rotate 8s linear infinite;
}

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.service-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: rgba(124, 58, 237, 0.5);
    box-shadow: 0 20px 60px rgba(124, 58, 237, 0.3);
}

.service-card.featured {
    border-color: rgba(124, 58, 237, 0.5);
    background: rgba(124, 58, 237, 0.1);
}

.service-card.featured:hover {
    box-shadow: 0 25px 80px rgba(124, 58, 237, 0.4);
}

/* Featured Badge */
.featured-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 0.375rem;
    z-index: 2;
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
}

.featured-badge i {
    animation: sparkle 2s ease-in-out infinite;
}

@keyframes sparkle {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.8;
    }
}

/* Service Icon */
.service-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    font-size: 2rem;
    color: white;
    margin-bottom: 1.5rem;
    position: relative;
    transition: var(--transition-normal);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
    box-shadow: 0 8px 20px rgba(124, 58, 237, 0.4);
}

.service-icon.pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(124, 58, 237, 0.7);
    }
    50% {
        box-shadow: 0 0 0 15px rgba(124, 58, 237, 0);
    }
}

/* Service Content */
.service-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    transition: var(--transition-normal);
}

.service-card:hover .service-title {
    color: #a78bfa;
}

.service-description {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
    line-height: 1.6;
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.service-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    opacity: 0.8;
    transition: var(--transition-fast);
}

.service-card:hover .service-list li {
    opacity: 1;
}

.service-list i {
    color: #7c3aed;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

/* Service Expand Button */
.service-expand {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: rgba(124, 58, 237, 0.1);
    border: 1px solid rgba(124, 58, 237, 0.3);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-normal);
    margin-top: auto;
}

.service-expand i {
    transition: transform 0.3s ease;
}

.service-card:hover .service-expand {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
}

.service-card:hover .service-expand i {
    transform: translateX(5px);
}

/* Filter Animation */
.service-card.hide {
    animation: fadeOut 0.3s ease forwards;
}

.service-card.show {
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeOut {
    to {
        opacity: 0;
        transform: scale(0.8);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ========================================
   Why Choose Us Section
   ======================================== */

.why-us {
    background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.why-card {
    padding: 2.5rem;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(124, 58, 237, 0.1);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition-normal);
}

.why-card:hover {
    transform: translateY(-10px);
    border-color: rgba(124, 58, 237, 0.5);
    box-shadow: var(--shadow-glow);
}

.why-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    font-size: 2rem;
    color: white;
    margin: 0 auto 1.5rem;
}

.why-card h3 {
    font-size: 1.375rem;
    margin-bottom: 1rem;
}

.why-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ========================================
   Portfolio Section
   ======================================== */

.portfolio {
    background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
    padding: 6rem 0;
}

/* Portfolio Filters */
.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.portfolio-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: rgba(124, 58, 237, 0.1);
    border: 1px solid rgba(124, 58, 237, 0.2);
    border-radius: 50px;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    white-space: nowrap;
}

.portfolio-filter-btn:hover {
    background: rgba(124, 58, 237, 0.2);
    border-color: rgba(124, 58, 237, 0.4);
    color: var(--color-text-primary);
    transform: translateY(-2px);
}

.portfolio-filter-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
    box-shadow: var(--shadow-glow);
}

.portfolio-filter-btn i {
    font-size: 1rem;
}

/* Portfolio Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
    min-height: 400px;
}

/* Portfolio Loading */
.portfolio-loading {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 4rem;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(124, 58, 237, 0.1);
    border-top-color: #7c3aed;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.portfolio-loading p {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
}

/* Portfolio Item */
.portfolio-item {
    position: relative;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(124, 58, 237, 0.1);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.4s ease;
    cursor: pointer;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    border-color: rgba(124, 58, 237, 0.5);
    box-shadow: 0 20px 60px rgba(124, 58, 237, 0.3);
}

.portfolio-item.featured {
    border-color: rgba(124, 58, 237, 0.5);
    box-shadow: 0 10px 40px rgba(124, 58, 237, 0.2);
}

.portfolio-item.featured::before {
    content: '⭐ Featured';
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.375rem 0.875rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    z-index: 2;
    text-transform: uppercase;
}

.portfolio-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.portfolio-item:hover .portfolio-image {
    transform: scale(1.1);
}

.portfolio-content {
    padding: 1.5rem;
}

.portfolio-category {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(124, 58, 237, 0.2);
    border: 1px solid rgba(124, 58, 237, 0.3);
    border-radius: 50px;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.portfolio-title {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--color-text-primary);
    transition: color 0.3s ease;
}

.portfolio-item:hover .portfolio-title {
    color: #a78bfa;
}

.portfolio-description {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.portfolio-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.portfolio-tech-tag {
    padding: 0.25rem 0.75rem;
    background: rgba(124, 58, 237, 0.1);
    border-radius: 50px;
    color: #a78bfa;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Portfolio CTA */
.portfolio-cta {
    text-align: center;
    margin-top: 3rem;
}

/* Portfolio Filter Animation */
.portfolio-item.hide {
    animation: fadeOutPortfolio 0.3s ease forwards;
}

.portfolio-item.show {
    animation: fadeInPortfolio 0.5s ease forwards;
}

@keyframes fadeOutPortfolio {
    to {
        opacity: 0;
        transform: scale(0.9);
    }
}

@keyframes fadeInPortfolio {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ========================================
   Tech Stack Section
   ======================================== */

.tech-stack {
    background: var(--color-bg-primary);
    padding: 4rem 0;
    overflow: hidden;
}

.tech-ticker {
    overflow: hidden;
    width: 100%;
    margin-top: 3rem;
    position: relative;
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.tech-ticker.dragging {
    cursor: grabbing;
}

.tech-track {
    display: inline-flex;
    gap: 3rem;
    padding: 1rem 0;
    will-change: transform;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 2rem;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(124, 58, 237, 0.1);
    border-radius: var(--radius-md);
    white-space: nowrap;
    transition: var(--transition-normal);
    flex-shrink: 0;
}

.tech-item:hover {
    border-color: rgba(124, 58, 237, 0.5);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(124, 58, 237, 0.2);
}

.tech-item i {
    font-size: 3rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Custom Flutter Icon (Font Awesome Free doesn't include it) */
.tech-item .flutter-custom {
    font-size: 2.5rem;
    font-weight: 800;
    font-style: normal;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-family: 'Inter', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-item .flutter-custom::before {
    content: 'F';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border: 3px solid;
    border-image: var(--gradient-primary) 1;
    border-radius: 8px;
    font-size: 2.5rem;
}

.tech-item span {
    font-weight: 600;
    color: var(--color-text-secondary);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* ========================================
   Contact Section
   ======================================== */

.contact {
    background: var(--color-bg-secondary);
    position: relative;
    overflow: hidden;
}

.contact-background {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.contact-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
}

.contact-orb.orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.4) 0%, transparent 70%);
    top: -200px;
    right: -100px;
}

.contact-orb.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.3) 0%, transparent 70%);
    bottom: -150px;
    left: -100px;
}

/* Quick Action Buttons */
.contact-quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 4rem;
    position: relative;
    z-index: 1;
}

.quick-action-btn {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem 2rem;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(124, 58, 237, 0.2);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    text-decoration: none;
}

.quick-action-btn:hover {
    transform: translateY(-5px);
    border-color: rgba(124, 58, 237, 0.6);
    box-shadow: 0 10px 40px rgba(124, 58, 237, 0.3);
}

.quick-action-btn.whatsapp:hover {
    border-color: #25D366;
    box-shadow: 0 10px 40px rgba(37, 211, 102, 0.3);
}

.quick-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    font-size: 1.75rem;
    color: white;
    flex-shrink: 0;
}

.quick-action-btn.whatsapp .quick-icon {
    background: #25D366;
}

.quick-text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.quick-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.quick-value {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

/* Contact Content */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-intro {
    padding: 2rem;
    background: rgba(124, 58, 237, 0.05);
    border-left: 4px solid #7c3aed;
    border-radius: var(--radius-md);
}

.contact-intro h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.contact-intro p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* Contact Stats */
.contact-stats {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-stat-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--color-bg-card);
    border: 1px solid rgba(124, 58, 237, 0.1);
    border-radius: var(--radius-md);
}

.contact-stat-item i {
    font-size: 1.5rem;
    color: #7c3aed;
}

.contact-stat-item strong {
    display: block;
    font-size: 1rem;
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
}

.contact-stat-item span {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* Contact Card */
.contact-card {
    padding: 2rem;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(124, 58, 237, 0.1);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition-normal);
}

.contact-card.featured-contact {
    background: rgba(124, 58, 237, 0.1);
    border-color: rgba(124, 58, 237, 0.3);
}

.contact-card:hover {
    transform: translateY(-5px);
    border-color: rgba(124, 58, 237, 0.5);
    box-shadow: var(--shadow-glow);
}

.contact-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    font-size: 1.5rem;
    color: white;
    margin: 0 auto 1rem;
}

.contact-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.contact-card p {
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.contact-card a {
    color: var(--color-text-secondary);
    transition: var(--transition-normal);
    font-weight: 600;
}

.contact-card a:hover {
    color: #7c3aed;
}

/* Contact Form */
.contact-form-wrapper {
    position: relative;
}

.contact-form {
    padding: 2.5rem;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(124, 58, 237, 0.1);
    border-radius: var(--radius-lg);
}

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

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.form-group label i {
    color: #7c3aed;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1.25rem;
    background: rgba(15, 10, 30, 0.5);
    border: 1px solid rgba(124, 58, 237, 0.2);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-normal);
}

.form-group select {
    cursor: pointer;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: rgba(124, 58, 237, 0.5);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

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

.form-success {
    display: none;
    text-align: center;
    padding: 3rem;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(124, 58, 237, 0.1);
    border-radius: var(--radius-lg);
}

.form-success.show {
    display: block;
}

.form-success i {
    font-size: 4rem;
    color: #10b981;
    margin-bottom: 1rem;
}

.form-success p {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--color-bg-primary);
    border-top: 1px solid rgba(124, 58, 237, 0.1);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.footer-logo i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 1.75rem;
}

.footer-description {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(124, 58, 237, 0.2);
    border: 1px solid rgba(124, 58, 237, 0.3);
    border-radius: 50%;
    color: var(--color-text-secondary);
    transition: var(--transition-normal);
}

.social-links a:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-3px);
}

.footer-section h4 {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--color-text-secondary);
    transition: var(--transition-normal);
}

.footer-links a:hover {
    color: var(--color-text-primary);
    padding-left: 0.5rem;
}

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

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-text-secondary);
}

.footer-contact i {
    color: #7c3aed;
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(124, 58, 237, 0.1);
    text-align: center;
    color: var(--color-text-muted);
}

/* ========================================
   Scroll to Top Button
   ======================================== */

.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
    box-shadow: var(--shadow-glow);
}

.scroll-top.show {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow-hover);
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.75rem;
    }
    
    .section-title {
        font-size: 2.25rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(15, 10, 30, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        transform: translateX(-100%);
        transition: var(--transition-normal);
        border-bottom: 1px solid rgba(124, 58, 237, 0.2);
    }
    
    .nav-links.active {
        transform: translateX(0);
    }
    
    .nav-cta {
        display: none;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .hero {
        padding: 6rem 0 3rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .section-title {
        font-size: 1.875rem;
    }
    
    /* Service Filters Mobile */
    .service-filters {
        gap: 0.75rem;
        margin-bottom: 2rem;
    }
    
    .filter-btn {
        padding: 0.625rem 1rem;
        font-size: 0.85rem;
    }
    
    .filter-btn i {
        font-size: 0.875rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .why-us-grid {
        grid-template-columns: 1fr;
    }
    
    /* Portfolio Section Mobile */
    .portfolio-filters {
        gap: 0.75rem;
        margin-bottom: 2rem;
    }
    
    .portfolio-filter-btn {
        padding: 0.625rem 1rem;
        font-size: 0.85rem;
    }
    
    .portfolio-filter-btn i {
        font-size: 0.875rem;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .portfolio-image {
        height: 200px;
    }
    
    /* Contact Section Mobile */
    .contact-quick-actions {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-bottom: 3rem;
    }
    
    .quick-action-btn {
        padding: 1.25rem 1.5rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    /* Tech Stack Mobile */
    .tech-item {
        padding: 1rem 1.5rem;
    }
    
    .tech-item i {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.625rem;
    }
    
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }
}

/* ========================================
   Animations
   ======================================== */

[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}

/* ========================================
   Utility Classes
   ======================================== */

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }