/* Variables */
:root {
    --color-bg: #050505;
    --color-bg-alt: #0f0f0f;
    --color-text: #e5e5e5;
    --color-text-muted: #a3a3a3;
    --color-accent: #00d2b4;
    --color-accent-hover: #00b399;
    --color-primary: #ffffff;
    --color-border: #262626;

    --font-main: 'Inter', sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    --container-width: 1200px;
    --header-height: 80px;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 20px rgba(0, 210, 180, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    /* Global Background Gradient */
    background: radial-gradient(circle at 50% 20%, rgba(0, 210, 180, 0.08) 0%, transparent 50%), var(--color-bg);
    background-attachment: fixed;
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
}

p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.text-accent {
    color: var(--color-accent);
}

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

/* Layout */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

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

.section-header {
    margin-bottom: var(--spacing-lg);
}

.section-tag {
    display: inline-block;
    color: var(--color-accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--color-accent);
    color: #000;
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-1px);
}

.btn-accent {
    background-color: var(--color-accent);
    color: #000;
    font-weight: 600;
    box-shadow: var(--shadow-glow);
}

.btn-accent:hover {
    background-color: var(--color-accent-hover);
    box-shadow: 0 0 30px rgba(0, 210, 180, 0.3);
}

.btn-outline {
    border-color: var(--color-border);
    background-color: transparent;
    color: var(--color-text);
}

.btn-outline:hover {
    border-color: var(--color-text);
    background-color: rgba(255, 255, 255, 0.05);
}

.btn-block {
    width: 100%;
}

/* Header */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.desktop-nav ul {
    display: flex;
    gap: var(--spacing-md);
}

.desktop-nav a {
    font-size: 0.95rem;
    font-weight: 500;
}

.desktop-nav a:hover {
    color: var(--color-accent);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: 0.3s;
}

.mobile-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    transform: translateY(-100%);
    transition: transform 0.3s ease;
    z-index: 999;
    border-bottom: 1px solid var(--color-border);
}

.mobile-nav.active {
    transform: translateY(0);
}

.mobile-nav ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* Hero */
.hero-section {
    padding-top: calc(var(--header-height) + var(--spacing-xl));
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    /* Background handled by body */
}

.hero-content {
    max-width: 800px;
}

.hero-logo-center {
    margin-bottom: var(--spacing-md);
}

.hero-icon {
    width: 280px;
    height: auto;
    object-fit: contain;
    margin: 0 auto;
}

.hero-subtitle {
    font-size: 1.125rem;
    margin: var(--spacing-md) 0;
    color: var(--color-text-muted);
    flex-wrap: wrap;
}

.check-icon {
    color: var(--color-accent);
    margin-right: 4px;
}

/* About */
.about-section {
    background-color: transparent;
    /* Transparent for global bg */
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.stat-card {
    background-color: rgba(15, 15, 15, 0.6);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.about-block {
    margin-bottom: var(--spacing-md);
}

.about-block h4 {
    color: var(--color-accent);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.quote {
    font-style: italic;
    border-left: 3px solid var(--color-accent);
    padding-left: 1rem;
    color: var(--color-text);
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background-color: rgba(15, 15, 15, 0.6);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
}

.service-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
}

.service-list {
    margin-top: var(--spacing-sm);
    padding-left: 1.2rem;
}

.service-list li {
    list-style-type: disc;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

/* Portfolio */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.portfolio-item {
    background-color: rgba(15, 15, 15, 0.6);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 300px;
    position: relative;
    display: flex;
    align-items: flex-end;
    border: 1px solid var(--color-border);
    background: linear-gradient(45deg, #111, #222);
}

.portfolio-content {
    padding: var(--spacing-md);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    width: 100%;
}

.portfolio-grid-detailed {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: var(--spacing-md);
}

.case-card {
    background-color: rgba(15, 15, 15, 0.6);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: transform 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
}

.case-header {
    background-color: rgba(255, 255, 255, 0.03);
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-border);
}

.case-header h3 {
    margin-bottom: 0;
    font-size: 1.2rem;
}

.case-icon {
    font-size: 1.5rem;
}

.case-body {
    padding: var(--spacing-md);
}

.case-problem,
.case-solution {
    margin-bottom: var(--spacing-md);
}

.case-problem h4,
.case-solution h4 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.case-solution ul {
    list-style: none;
    padding-left: 0;
}

.case-solution ul li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
}

/* FAQ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: rgba(15, 15, 15, 0.6);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.faq-item summary {
    padding: var(--spacing-md);
    cursor: pointer;
    font-weight: 500;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--color-accent);
}

.faq-item[open] summary::after {
    content: '-';
}

.faq-content {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
}

/* Contact */
.contact-section {
    background-color: transparent;
}

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

.contact-methods {
    margin-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-form {
    background-color: rgba(15, 15, 15, 0.6);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-family: inherit;
}

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

/* Footer */
footer {
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-col h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.footer-col ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-col ul li a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

/* Chat Widget */
.chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
    z-index: 900;
}

.chat-message {
    background-color: #fff;
    color: #000;
    padding: 10px 15px;
    border-radius: 20px 20px 0 20px;
    font-size: 0.875rem;
    box-shadow: var(--shadow-md);
    max-width: 250px;
}

.chat-btn {
    background-color: #000;
    color: #fff;
    border: 1px solid var(--color-border);
    padding: 10px 20px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: transform 0.3s;
}

.chat-btn:hover {
    transform: scale(1.05);
}

/* Partner Ticker Carousel */
.partners-ticker-section {
    padding: 4rem 0;
    background-color: transparent;
    /* Transparent for global bg */
    overflow: hidden;
}

.ticker-wrapper {
    overflow: hidden;
    position: relative;
    width: 100%;
}

.ticker-content {
    display: flex;
    animation: scroll 40s linear infinite;
    width: fit-content;
}

.ticker-content:hover {
    animation-play-state: paused;
}

.ticker-item {
    flex-shrink: 0;
    padding: 0 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.partner-logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-muted);
    transition: all 0.3s ease;
    white-space: nowrap;
    filter: grayscale(100%);
    opacity: 0.6;
}

.ticker-item:hover .partner-logo {
    color: var(--color-accent);
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.1);
}

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

    100% {
        transform: translateX(-50%);
    }
}

/* Responsive */
@media (max-width: 992px) {
    .about-wrapper {
        grid-template-columns: 1fr !important;
    }
}

@media (max-width: 768px) {
    .desktop-nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .about-grid,
    .contact-wrapper,
    .footer-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    h1 {
        font-size: 2.5rem;
    }

    .ticker-item {
        padding: 0 2rem;
    }

    .partner-logo {
        font-size: 1.2rem;
    }
}