/* -------------------------------------------------------------
 * Greitas Web - Premium Styling Sheet
 * Supports CSS Variables for Light/Dark themes, responsive grids,
 * custom glassmorphism components, and fluid micro-animations.
 * ------------------------------------------------------------- */

/* Theme Variables */
:root[data-theme="dark"] {
    --bg-primary: #07060c;
    --bg-secondary: #0e0d16;
    --bg-tertiary: #161422;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(139, 92, 246, 0.3);
    --text-primary: #f4f4f5;
    --text-secondary: #a1a1aa;
    --text-muted: #8b8b99;
    --accent-purple: #8b5cf6;
    --accent-purple-hover: #a78bfa;
    --accent-purple-glow: rgba(139, 92, 246, 0.15);
    --accent-red: #ff6b6b;
    --accent-red-glow: rgba(255, 107, 107, 0.15);
    --accent-green: #10b981;
    --card-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7);
    --glass-bg: rgba(14, 13, 22, 0.7);
    --header-bg: rgba(7, 6, 12, 0.85);
}

:root[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --border-color: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(124, 58, 237, 0.3);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #627285;
    --accent-purple: #7c3aed;
    --accent-purple-hover: #6d28d9;
    --accent-purple-glow: rgba(124, 58, 237, 0.08);
    --accent-red: #c53030;
    --accent-red-glow: rgba(197, 48, 48, 0.08);
    --accent-green: #16a34a;
    --card-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.05);
    --glass-bg: rgba(255, 255, 255, 0.75);
    --header-bg: rgba(248, 250, 252, 0.85);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

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

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 8rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 4rem auto;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

/* Button Component */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    padding: 0.85rem 1.8rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    font-size: 1rem;
    border: none;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-purple) 0%, #6d28d9 100%);
    color: #ffffff;
    box-shadow: 0 10px 20px -5px rgba(124, 58, 237, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 25px -5px rgba(124, 58, 237, 0.6);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
    border-color: var(--accent-purple);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

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

.btn-lg {
    padding: 1rem 2.2rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.5rem 1.2rem;
    font-size: 0.9rem;
}

.btn-block {
    width: 100%;
}

/* Header & Navbar Styling */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.4s ease;
}

.nav-container {
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.4rem;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
}

.logo-icon {
    font-size: 1.6rem;
    color: var(--accent-purple);
}

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

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

.nav-menu a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

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

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

.theme-toggle, .lang-toggle {
    background: none;
    border: 1px solid var(--border-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.theme-toggle:hover, .lang-toggle:hover {
    border-color: var(--accent-purple);
    background-color: var(--bg-tertiary);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
}

:root[data-theme="dark"] .sun-icon { display: block; }
:root[data-theme="dark"] .moon-icon { display: none; }
:root[data-theme="light"] .sun-icon { display: none; }
:root[data-theme="light"] .moon-icon { display: block; }

.lang-toggle {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    font-size: 0.8rem;
}

.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 24px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero-section {
    position: relative;
    padding: 10rem 0 6rem 0;
    overflow: hidden;
}

.hero-bg-glow {
    position: absolute;
    top: -10%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: 0;
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.8rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-title .highlight {
    position: relative;
    display: inline-block;
}

.hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--accent-red);
    border-radius: 2px;
}

.hero-title .time-limit {
    color: var(--accent-red);
}

.hero-title .seo-text {
    display: block;
    font-size: 2.2rem;
    margin-top: 0.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.guarantee-badge {
    display: inline-flex;
    background-color: var(--accent-red-glow);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--accent-red);
    padding: 0.4rem 1rem;
    border-radius: 4px;
    font-weight: 800;
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    margin-bottom: 2rem;
    letter-spacing: 0.05em;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 580px;
}

.hero-actions {
    display: flex;
    gap: 1.2rem;
    margin-bottom: 3.5rem;
}

.hero-trust {
    display: flex;
    gap: 2rem;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.trust-icon {
    color: var(--accent-purple);
    font-weight: bold;
}

/* Mockup Display */
.hero-visual {
    display: flex;
    justify-content: center;
}

.mockup-wrapper {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: transform 0.5s ease;
    width: 100%;
}

.mockup-wrapper:hover {
    transform: translateY(-8px) rotate(1deg);
    border-color: var(--border-hover);
}

.mockup-header {
    height: 36px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 1rem;
    position: relative;
}

.mockup-dots {
    display: flex;
    gap: 6px;
}

.mockup-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--border-color);
}

.mockup-dots span:nth-child(1) { background-color: #ef4444; }
.mockup-dots span:nth-child(2) { background-color: #f59e0b; }
.mockup-dots span:nth-child(3) { background-color: #10b981; }

.mockup-url {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
    color: var(--text-muted);
    background-color: var(--bg-tertiary);
    padding: 0.2rem 2rem;
    border-radius: 4px;
    width: 200px;
    text-align: center;
}

.mockup-img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
    aspect-ratio: 3/2;
}

/* Float Animation */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

/* Comparison Section */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
}

.comparison-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 3.5rem 3rem;
    position: relative;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.comparison-card:hover {
    transform: translateY(-5px);
}

.card-status-badge {
    position: absolute;
    top: 2rem;
    right: 2rem;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
}

.card-bad .card-status-badge {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--accent-red);
}

.card-good .card-status-badge {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--accent-green);
}

.card-good {
    border-color: rgba(139, 92, 246, 0.3);
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--accent-purple-glow) 100%);
}

.card-good::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-purple), #ec4899);
    border-radius: 16px 16px 0 0;
}

.comparison-card .card-title {
    font-size: 1.6rem;
    margin-bottom: 2rem;
}

.comparison-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.comparison-list li {
    display: flex;
    gap: 1rem;
    font-size: 1.05rem;
    line-height: 1.4;
}

.list-icon {
    font-weight: bold;
    flex-shrink: 0;
}

.card-bad .list-icon {
    color: var(--accent-red);
}

.card-good .list-icon {
    color: var(--accent-green);
}

/* 3-Step Process */
.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.step-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 3rem 2rem;
    box-shadow: var(--card-shadow);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

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

.step-number {
    font-size: 5rem;
    font-weight: 900;
    font-family: 'Outfit', sans-serif;
    color: var(--border-color);
    line-height: 1;
    margin-bottom: 1.5rem;
    transition: color 0.3s ease;
}

.step-card:hover .step-number {
    color: var(--accent-purple-glow);
}

.step-title {
    font-size: 1.35rem;
    margin-bottom: 0.8rem;
}

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

/* Features */
.features-section {
    overflow: hidden;
}

.features-bg-glow {
    position: absolute;
    bottom: -10%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.1) 0%, rgba(0, 0, 0, 0) 70%);
    pointer-events: none;
}

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

.feature-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.feature-title {
    font-size: 1.25rem;
    margin-bottom: 0.8rem;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background: none;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    text-align: left;
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    font-size: 1.15rem;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: var(--bg-tertiary);
}

.faq-arrow {
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0, 1, 0, 1), padding 0.3s ease;
    color: var(--text-secondary);
    border-top: 0 solid var(--border-color);
}

.faq-item.active .faq-answer {
    padding: 1.5rem;
    max-height: 500px;
    border-top-width: 1px;
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: stretch;
}

.contact-info-panel {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-info-title {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
}

.contact-info-desc {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

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

.meta-item {
    display: flex;
    align-items: flex-start;
    gap: 1.2rem;
}

.meta-icon {
    font-size: 1.5rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--accent-purple-glow);
    color: var(--accent-purple);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.meta-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.meta-value {
    font-size: 1.15rem;
    font-weight: 600;
}

.contact-form-panel {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 3rem;
    box-shadow: var(--card-shadow);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.form-label {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.form-label .required {
    color: var(--accent-red);
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: all 0.3s ease;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px var(--accent-purple-glow);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a1a1aa' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1rem;
    padding-right: 2.5rem;
}

.form-feedback {
    padding: 1rem;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 500;
    margin-top: 1rem;
    text-align: center;
}

.form-feedback.success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-feedback.error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Spinner */
.btn-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: spin 1s ease-in-out infinite;
}

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

.hidden {
    display: none !important;
}

/* Footer Section */
.footer-main {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 5rem 0 2rem 0;
}

.footer-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-desc {
    color: var(--text-secondary);
    margin-top: 1rem;
    font-size: 0.95rem;
    max-width: 320px;
}

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

.footer-links h3, .footer-contact h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--accent-purple);
}

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

.footer-contact a:hover {
    color: var(--accent-purple);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 2rem;
}

.footer-bottom-container {
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Mobile Responsive */
@media (max-width: 992px) {
    .section {
        padding: 5rem 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-trust {
        justify-content: center;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.8rem;
    }
    
    .hero-title .seo-text {
        font-size: 1.8rem;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    /* Navigation responsive menu */
    .mobile-nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--bg-primary);
        flex-direction: column;
        justify-content: center;
        gap: 2.5rem;
        padding: 2rem;
        transform: translateX(-100%);
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 999;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.open {
        transform: translateX(0);
    }
    
    .nav-menu a {
        font-size: 1.3rem;
    }
    
    .nav-menu .btn {
        width: 80%;
    }
    
    /* Hamburger animation */
    .mobile-nav-toggle.open span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .mobile-nav-toggle.open span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-nav-toggle.open span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
}