/* ===================================
   WinSetupFromUSB Site 2 - Stylesheet
   Modern Design with Green Theme
   =================================== */

/* CSS Variables */
:root {
    --primary-color: #059669;
    --secondary-color: #047857;
    --accent-color: #f59e0b;
    --dark-bg: #1f2937;
    --text-dark: #111827;
    --text-medium: #4b5563;
    --text-light: #6b7280;
    --bg-gray: #f9fafb;
    --bg-white: #ffffff;
    --border-light: #e5e7eb;
    --success: #10b981;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

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

a:hover {
    color: var(--secondary-color);
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header & Navigation */
header {
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(8px);
    background-color: rgba(255, 255, 255, 0.95);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--text-dark);
}

.logo img {
    width: 45px;
    height: 45px;
    border-radius: 8px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-menu a {
    color: var(--text-medium);
    font-weight: 500;
    font-size: 0.9375rem;
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition);
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-menu a:hover::after {
    width: 100%;
}

/* Mobile Menu */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--text-dark);
    transition: var(--transition);
    border-radius: 2px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
                      radial-gradient(circle at 80% 80%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    color: var(--bg-white);
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1.25rem;
    font-weight: 800;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    gap: 8px;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--bg-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: #d97706;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.2);
    color: var(--bg-white);
    border: 2px solid var(--bg-white);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background-color: var(--bg-white);
    color: var(--primary-color);
}

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

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--bg-white);
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.125rem;
}

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-gray {
    background-color: var(--bg-gray);
}

.section-dark {
    background-color: var(--dark-bg);
    color: var(--bg-white);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    font-size: 2.75rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-weight: 700;
}

.section-dark .section-header h2 {
    color: var(--bg-white);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-light);
}

.section-dark .section-header p {
    color: rgba(255, 255, 255, 0.8);
}

/* Intro Content */
.intro-section {
    max-width: 900px;
    margin: 0 auto;
}

.intro-section p {
    font-size: 1.125rem;
    color: var(--text-medium);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.feature-box {
    background-color: var(--bg-white);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.feature-box:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.feature-box h3 {
    font-size: 1.375rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 600;
}

.feature-box p {
    color: var(--text-medium);
    line-height: 1.7;
}

/* Two Column Layout */
.two-col {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 4rem;
    align-items: center;
}

.content-block h2 {
    font-size: 2.25rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    font-weight: 700;
}

.content-block p {
    font-size: 1.0625rem;
    color: var(--text-medium);
    margin-bottom: 1.25rem;
    line-height: 1.8;
}

.content-block ul {
    list-style: none;
    margin: 1.5rem 0;
}

.content-block li {
    padding: 0.75rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--text-medium);
}

.content-block li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.25rem;
}

.image-block {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.image-block img {
    width: 100%;
    transition: var(--transition);
}

.image-block:hover img {
    transform: scale(1.03);
}

/* Benefits Cards */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.benefit-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

.benefit-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
    font-weight: 600;
}

.benefit-card p {
    color: var(--text-medium);
    line-height: 1.7;
    font-size: 0.9375rem;
}

/* FAQ Accordion */
.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-card {
    background-color: var(--bg-white);
    margin-bottom: 1.25rem;
    border-radius: 10px;
    border: 1px solid var(--border-light);
    overflow: hidden;
    transition: var(--transition);
}

.faq-card:hover {
    border-color: var(--primary-color);
}

.faq-header {
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--text-dark);
    transition: var(--transition);
    user-select: none;
}

.faq-header:hover {
    background-color: var(--bg-gray);
}

.faq-toggle {
    font-size: 1.25rem;
    color: var(--primary-color);
    transition: var(--transition);
    font-weight: bold;
}

.faq-card.open .faq-toggle {
    transform: rotate(45deg);
}

.faq-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-card.open .faq-body {
    max-height: 600px;
}

.faq-body p {
    padding: 0 2rem 1.5rem 2rem;
    color: var(--text-medium);
    line-height: 1.7;
}

/* Download Page */
.download-box {
    background-color: var(--bg-white);
    border-radius: 16px;
    padding: 3rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.download-box h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.download-meta {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    margin: 1.5rem 0;
    padding: 1.5rem;
    background-color: var(--bg-gray);
    border-radius: 10px;
}

.download-meta-item {
    flex: 1;
    min-width: 150px;
}

.download-meta-item strong {
    display: block;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
    font-size: 0.875rem;
}

.download-meta-item span {
    color: var(--text-medium);
}

.steps-list {
    margin: 2rem 0;
}

.steps-list ol {
    margin-left: 1.5rem;
}

.steps-list li {
    padding: 0.75rem 0;
    color: var(--text-medium);
    line-height: 1.7;
}

/* Contact Form */
.form-container {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--bg-white);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

.form-field {
    margin-bottom: 1.75rem;
}

.form-field label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9375rem;
}

.form-field input,
.form-field textarea,
.form-field select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-light);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background-color: var(--bg-white);
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.1);
}

.form-field textarea {
    resize: vertical;
    min-height: 140px;
}

/* Footer */
footer {
    background-color: var(--dark-bg);
    color: var(--bg-white);
    padding: 4rem 0 2rem 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h3 {
    margin-bottom: 1.25rem;
    font-size: 1.125rem;
    font-weight: 600;
}

.footer-col p {
    line-height: 1.7;
    opacity: 0.85;
    font-size: 0.9375rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--bg-white);
    opacity: 0.85;
    transition: var(--transition);
    font-size: 0.9375rem;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.75;
    font-size: 0.875rem;
}

/* Legal Pages */
.legal-page {
    max-width: 900px;
    margin: 0 auto;
}

.legal-page h2 {
    font-size: 2rem;
    margin: 2.5rem 0 1.25rem 0;
    color: var(--text-dark);
    font-weight: 700;
}

.legal-page h3 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem 0;
    color: var(--text-dark);
    font-weight: 600;
}

.legal-page p {
    margin-bottom: 1.25rem;
    color: var(--text-medium);
    line-height: 1.8;
}

.legal-page ul {
    margin: 1.25rem 0 1.25rem 2rem;
}

.legal-page li {
    margin-bottom: 0.75rem;
    color: var(--text-medium);
    line-height: 1.7;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-white);
        flex-direction: column;
        padding: 1.5rem;
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        border-top: 1px solid var(--border-light);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

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

    .section-header h2 {
        font-size: 2rem;
    }

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

    .two-col {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .form-container,
    .download-box {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }
}