/* Base Styles & Variables */
:root {
    --primary: #8a2be2;
    /* Deep vibrant purple */
    --primary-hover: #7b1fa2;
    --secondary: #00e5ff;
    /* Cyan neon */
    --accent: #ff007f;
    /* Hot pink for highlights */

    --bg-color: #0d0a14;
    /* Very dark purple/black */
    --surface-color: #1a1525;
    /* Slightly lighter surface */
    --text-color: #ffffff;
    --muted-color: rgba(255, 255, 255, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);

    --font-sans: 'Inter', sans-serif;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

h1,
h2,
h3,
h4 {
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}

p {
    color: var(--muted-color);
    margin-bottom: 1rem;
    font-weight: 400;
}

a {
    text-decoration: none;
    color: inherit;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Helpers */
.hidden {
    display: none !important;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(138, 43, 226, 0.4);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(138, 43, 226, 0.6);
}

.btn-secondary {
    background-color: transparent;
    color: #fff;
    border: 2px solid var(--border-color);
}

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

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 1000;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(13, 10, 20, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent);
}

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

.nav-links a:not(.btn) {
    font-weight: 600;
    color: var(--muted-color);
    transition: var(--transition);
}

.nav-links a:not(.btn):hover {
    color: var(--text-color);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 2rem;
    background-image: url('assets/images/voytel_hero_bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(13, 10, 20, 0.9) 0%, rgba(13, 10, 20, 0.4) 100%);
    z-index: 1;
}

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

.rating {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 8px 16px;
    border-radius: 30px;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.rating span {
    font-size: 0.875rem;
    font-weight: 600;
}

.hero h1 {
    font-size: clamp(3rem, 5vw, 4.5rem);
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #fff, var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* Social Proof */
.social-proof {
    padding: 2rem 0;
    background: var(--surface-color);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.social-proof p {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.logos span {
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--muted-color);
    opacity: 0.5;
    transition: var(--transition);
}

.logos span:hover {
    opacity: 1;
}

/* Services */
.services {
    padding: 8rem 0;
}

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

.section-title h2 {
    font-size: 2.5rem;
}

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

.service-card {
    background: var(--surface-color);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(138, 43, 226, 0.2);
}

.service-card img {
    height: 250px;
    width: 100%;
    object-fit: cover;
}

.card-content {
    padding: 2rem;
}

/* Benefits */
.benefits {
    padding: 6rem 0;
    background: linear-gradient(to bottom, var(--bg-color), var(--surface-color));
}

.benefits-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.benefits-list {
    list-style: none;
    margin-top: 2rem;
}

.benefits-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.check-icon {
    width: 24px;
    height: 24px;
    fill: var(--secondary);
    flex-shrink: 0;
    margin-top: 3px;
}

.glass-card {
    background: rgba(26, 21, 37, 0.6);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    position: relative;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), transparent);
    pointer-events: none;
}

.quote-mark {
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 8rem;
    color: var(--primary);
    opacity: 0.3;
    font-family: serif;
    line-height: 1;
}

.quote {
    font-size: 1.25rem;
    color: #fff;
    font-style: italic;
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}

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

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary), var(--primary));
}

.author-info h4 {
    margin: 0;
    font-size: 1.1rem;
}

.author-info span {
    color: var(--muted-color);
    font-size: 0.875rem;
}

/* Contact */
.contact {
    padding: 8rem 0;
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.contact-details {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.glass-form {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
}

.form-group input {
    width: 100%;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: #fff;
    font-family: var(--font-sans);
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(138, 43, 226, 0.2);
}

.form-success {
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid var(--secondary);
    color: var(--secondary);
    border-radius: 8px;
    text-align: center;
}

/* Footer */
.footer {
    padding: 3rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    background: var(--surface-color);
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.footer-logo span {
    color: var(--accent);
}

/* Animations */
.scroll-fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-slide-left {
    opacity: 0;
    transform: translateX(50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-slide-right {
    opacity: 0;
    transform: translateX(-50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.is-visible {
    opacity: 1;
    transform: translate(0);
}

.style-delay-1 {
    transition-delay: 100ms;
}

.style-delay-2 {
    transition-delay: 200ms;
}

.style-delay-3 {
    transition-delay: 300ms;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* simple mobile nav */
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .benefits-layout,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .benefits-visual {
        grid-row: 1;
    }
}