/* CallSec Landing Page Styles - Extracted for Performance */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Brand Colors - Professional palette */
    --brand-primary: #00A8E8;
    --brand-secondary: #FF3C94;
    --brand-accent: #00FF88;
    --brand-dark: #0a0a0a;
    --brand-gray: #4a4a4a;
    --brand-light-gray: #6a6a6a;

    /* Semantic colors */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.9);
    --text-tertiary: rgba(255, 255, 255, 0.7);
    --bg-dark: #0a0a0a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-input: rgba(255, 255, 255, 0.08);
    --border-color: rgba(255, 255, 255, 0.1);

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 60px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Background Effects */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(0, 168, 232, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 60, 148, 0.06) 0%, transparent 50%),
                radial-gradient(circle at 40% 80%, rgba(0, 255, 136, 0.04) 0%, transparent 50%);
    z-index: -2;
}

.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--brand-primary);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    cursor: pointer;
    transition: transform 0.2s;
}

.logo:hover {
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--brand-primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--brand-primary);
    transition: width 0.3s;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* Focus Visible for Accessibility */
*:focus-visible {
    outline: 2px solid var(--brand-primary);
    outline-offset: 4px;
    border-radius: 4px;
}

/* Mobile Menu */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
}

.mobile-menu {
    display: none;
    background: rgba(10, 10, 10, 0.98);
    padding: 20px 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu a {
    display: block;
    color: var(--text-primary);
    text-decoration: none;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-weight: 500;
}

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

/* Main Content */
.main-content {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 120px 20px 80px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.section {
    display: none;
    width: 100%;
}

.section.active {
    display: block;
}

#home.section {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

#home.section.active {
    display: flex;
}

/* Hero Section */
.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 30px;
}

.hero-badge {
    background: rgba(0, 168, 232, 0.1);
    color: var(--brand-primary);
    padding: 10px 24px;
    border-radius: 50px;
    border: 1px solid rgba(0, 168, 232, 0.3);
    font-size: 0.9rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.1;
    background: linear-gradient(135deg, #ffffff 0%, var(--brand-primary) 50%, var(--brand-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 3vw, 1.3rem);
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
}

/* CTA Button */
.cta-button {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
    color: white;
    padding: 16px 40px;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 4px 20px rgba(0, 168, 232, 0.3);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 168, 232, 0.5);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 30px;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--brand-primary);
    box-shadow: 0 10px 40px rgba(0, 168, 232, 0.2);
}

.feature-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.feature-description {
    color: var(--text-tertiary);
    line-height: 1.6;
}

/* Download Grid */
.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.download-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px 30px;
    transition: all 0.3s;
}

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

.download-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.download-btn {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
    color: white;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    display: inline-block;
    margin-top: 20px;
    font-weight: 600;
    transition: all 0.3s;
}

.download-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 20px rgba(0, 168, 232, 0.4);
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 40px auto;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
}

.form-group {
    margin-bottom: 24px;
    text-align: left;
}

.form-group label {
    display: block;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group label .required {
    color: var(--brand-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.2s;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--brand-primary);
    background: rgba(0, 168, 232, 0.05);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
    color: white;
    padding: 16px;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.submit-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 168, 232, 0.4);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Footer */
.footer {
    background: rgba(10, 10, 10, 0.8);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 60px 40px 30px;
    margin-top: 100px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--brand-primary);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 12px;
}

.footer-section a {
    color: var(--text-tertiary);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-section a:hover {
    color: var(--brand-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

/* Language Selector */
#language-selector {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
}

#language-selector:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--brand-primary);
}

#language-selector:focus {
    outline: 2px solid var(--brand-primary);
    outline-offset: 2px;
}

#language-selector option {
    background: #1a1a1a;
    color: white;
    padding: 10px;
}

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

    .mobile-menu-btn {
        display: block;
    }

    .nav-container {
        padding: 15px 20px;
    }

    .main-content {
        padding: 100px 20px 60px;
    }

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

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

    .contact-form {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .hero-badge {
        font-size: 0.8rem;
        padding: 8px 16px;
    }

    .cta-button {
        padding: 14px 30px;
        font-size: 1rem;
    }
}