/* 
 * GF Web Studio - Main Stylesheet
 * Theme: Dark Premium + Neon Green Accent
 */

:root {
    --bg-color: #050505;
    --bg-card: #0a0a0a;
    --text-color: #e0e0e0;
    --text-muted: #a0a0a0;
    --accent-color: #ccff00;
    /* Neon Lime/Green */
    --accent-hover: #b3e600;
    --dark-green: #1a2200;

    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;

    --transition: all 0.3s ease;
    --container-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

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

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: #fff;
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

p {
    color: var(--text-muted);
    margin-bottom: 20px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    vertical-align: bottom;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #000;
    border: 2px solid transparent;
    box-shadow: 0 0 15px rgba(204, 255, 0, 0.3);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    box-shadow: 0 0 25px rgba(204, 255, 0, 0.5);
    transform: translateY(-2px);
}

.btn-outline {
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    margin-left: 15px;
}

.btn-outline:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Header */
.header {
    background-color: rgba(5, 5, 5, 0.9);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.02em;
}

.nav-menu ul {
    display: flex;
    gap: 30px;
    align-items: center;
}

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

.nav-menu a:not(.btn-nav):hover {
    color: var(--accent-color);
}

.btn-nav {
    border: 1px solid var(--accent-color);
    padding: 8px 20px;
    border-radius: 50px;
    color: var(--accent-color);
}

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

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: #fff;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* Background Glow Effect */
.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(204, 255, 0, 0.15) 0%, rgba(5, 5, 5, 0) 70%);
    z-index: -1;
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    background-color: var(--dark-green);
    color: var(--accent-color);
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
    border: 1px solid rgba(204, 255, 0, 0.2);
}

.hero-btns {
    margin-top: 30px;
}

.hero-img {
    max-width: 100%;
    max-height: 600px;
    object-fit: cover;
    filter: drop-shadow(0 0 30px rgba(204, 255, 0, 0.1));
    mask-image: linear-gradient(to bottom, black 85%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 85%, transparent 100%);
    transition: var(--transition);
}

.hero-img:hover {
    filter: drop-shadow(0 0 40px rgba(204, 255, 0, 0.2));
    transform: scale(1.02);
}

/* Section Common */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

/* Problems Section (Cards) */
.problems {
    background-color: #080808;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

/* Services Section */
.services-list {
    display: flex;
    flex-direction: column;
    gap: 80px;
}

.service-item {
    display: flex;
    align-items: center;
    gap: 50px;
}

.service-item.reverse {
    flex-direction: row-reverse;
}

.service-text {
    flex: 1;
}

.service-text h3 {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.check-list li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 10px;
    color: #ccc;
}

.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.service-visual {
    flex: 1;
    height: 300px;
    background: #111;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    object-fit: cover;
}

/* Stats / Social Proof */
.why-us {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.stats-grid {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 3.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: #fff;
}

.stat-label {
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.9rem;
}

/* CTA Final */
.cta-final {
    text-align: center;
}

.cta-box {
    background: linear-gradient(180deg, #0a0a0a 0%, #050505 100%);
    padding: 80px 40px;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    vertical-align: middle;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent-color);
    box-shadow: 0 0 20px var(--accent-color);
}

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
    margin-top: 30px;
}

/* Footer */
.footer {
    padding: 60px 0 30px;
    background-color: #020202;
    font-size: 0.9rem;
    color: #666;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-brand strong {
    color: #fff;
}

.contact-link {
    color: #fff;
    opacity: 0.7;
}

.contact-link:hover {
    opacity: 1;
    color: var(--accent-color);
}

/* Responsive Design */
@media (max-width: 900px) {
    h1 {
        font-size: 2.8rem;
    }

    h2 {
        font-size: 2rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-btns {
        justify-content: center;
    }

    .service-item,
    .service-item.reverse {
        flex-direction: column;
        text-align: center;
    }

    .check-list {
        display: inline-block;
        text-align: left;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
        z-index: 1001;
    }

    .nav-menu {
        position: fixed;
        right: -100%;
        top: 0;
        width: 80%;
        height: 100vh;
        background-color: #0a0a0a;
        flex-direction: column;
        justify-content: center;
        transition: 0.4s;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.5);
    }

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

    .nav-menu ul {
        flex-direction: column;
        height: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .btn-outline {
        margin-left: 7px;
        padding: 12px 20px;
    }

    .btn {
        font-size: 0.9rem;
    }
}