/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #a5b4fc;
    --secondary: #f59e0b;
    --secondary-dark: #d97706;
    --accent: #ec4899;
    --accent-dark: #db2777;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Status Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* Typography - Responsive Font Sizes */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: clamp(0.7rem, 0.8vw, 0.75rem);
    --font-size-sm: clamp(0.8rem, 1vw, 0.875rem);
    --font-size-base: clamp(0.9rem, 1.2vw, 1rem);
    --font-size-lg: clamp(1rem, 1.4vw, 1.125rem);
    --font-size-xl: clamp(1.1rem, 1.6vw, 1.25rem);
    --font-size-2xl: clamp(1.2rem, 2vw, 1.5rem);
    --font-size-3xl: clamp(1.4rem, 2.5vw, 1.875rem);
    --font-size-4xl: clamp(1.6rem, 3vw, 2.25rem);
    --font-size-5xl: clamp(2rem, 4vw, 3rem);
    --font-size-6xl: clamp(2.5rem, 5vw, 3.75rem);
    
    /* Responsive Spacing */
    --spacing-1: clamp(0.2rem, 0.3vw, 0.25rem);
    --spacing-2: clamp(0.4rem, 0.6vw, 0.5rem);
    --spacing-3: clamp(0.6rem, 0.9vw, 0.75rem);
    --spacing-4: clamp(0.8rem, 1.2vw, 1rem);
    --spacing-5: clamp(1rem, 1.5vw, 1.25rem);
    --spacing-6: clamp(1.2rem, 1.8vw, 1.5rem);
    --spacing-8: clamp(1.6rem, 2.4vw, 2rem);
    --spacing-10: clamp(2rem, 3vw, 2.5rem);
    --spacing-12: clamp(2.4rem, 3.6vw, 3rem);
    --spacing-16: clamp(3.2rem, 4.8vw, 4rem);
    --spacing-20: clamp(4rem, 6vw, 5rem);
    --spacing-24: clamp(4.8rem, 7.2vw, 6rem);
    --spacing-32: clamp(6.4rem, 9.6vw, 8rem);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--gray-50);
    overflow-x: hidden;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: var(--spacing-4);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-4);
    color: var(--gray-600);
}

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

a:hover {
    color: var(--primary-dark);
}

/* ===== LAYOUT & CONTAINERS ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-6);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-16);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-4);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-4) var(--spacing-6);
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-8);
}

.nav-link {
    color: var(--gray-700);
    font-weight: 500;
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary);
    background-color: var(--gray-100);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--gray-700);
    margin: 3px 0;
    transition: var(--transition);
}

/* ===== HERO SECTION ===== */
.hero {
    padding: var(--spacing-32) 0 var(--spacing-24);
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e5e7eb" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    color: var(--white);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-2xl);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-6);
    box-shadow: var(--shadow-lg);
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-6);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--gray-600);
    margin-bottom: var(--spacing-8);
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-12);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-8);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

.hero-visual {
    position: relative;
}

.hero-image-container {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-image {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    animation: float 6s ease-in-out infinite;
}

.floating-card {
    position: absolute;
    background: var(--white);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-700);
    animation: float 4s ease-in-out infinite;
}

.floating-card i {
    color: var(--primary);
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 10%;
    animation-delay: 1s;
}

.card-3 {
    bottom: 20%;
    left: 20%;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: var(--font-size-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: var(--white);
    color: var(--gray-700);
    border: 2px solid var(--gray-200);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ===== CONTACT ALERT ===== */
.contact-alert {
    background: linear-gradient(135deg, var(--warning), var(--error));
    color: var(--white);
    padding: var(--spacing-4) 0;
}

.alert-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    justify-content: center;
}

.alert-link {
    color: var(--white);
    font-weight: 600;
    text-decoration: underline;
}

.alert-link:hover {
    color: var(--gray-100);
}

/* ===== SOFTWARE SECTION ===== */
.software-section {
    padding: var(--spacing-24) 0;
    background: var(--white);
}

.software-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-8);
}

.software-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
    position: relative;
}

.software-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary);
}

.software-card.featured {
    border: 2px solid var(--secondary);
    transform: scale(1.02);
}

.software-card.premium {
    border: 2px solid var(--accent);
}

.software-card.free {
    border: 2px solid var(--success);
}

.card-header {
    position: relative;
    padding: var(--spacing-6);
    background: linear-gradient(135deg, var(--gray-50), var(--white));
    text-align: center;
}

.card-badge {
    position: absolute;
    top: var(--spacing-4);
    right: var(--spacing-4);
    background: var(--secondary);
    color: var(--white);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-2xl);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
}

.premium-badge {
    background: var(--accent);
}

.free-badge {
    background: var(--success);
}

.card-image {
    width: 100%;
    max-width: 200px;
    height: auto;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-4);
}

.card-body {
    padding: var(--spacing-6);
}

.card-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-3);
    color: var(--gray-900);
}

.card-description {
    color: var(--gray-600);
    margin-bottom: var(--spacing-4);
    line-height: 1.6;
}

.card-features {
    list-style: none;
    margin-bottom: var(--spacing-6);
}

.card-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-2);
    color: var(--gray-600);
}

.card-features i {
    color: var(--success);
    font-size: var(--font-size-sm);
}

.card-price {
    text-align: center;
    margin-bottom: var(--spacing-6);
    padding: var(--spacing-4);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}

.price-amount {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--primary);
}

.price-period {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
}

/* ===== FEATURES SECTION ===== */
.features-section {
    padding: var(--spacing-24) 0;
    background: linear-gradient(135deg, var(--gray-50), var(--white));
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-8);
}

.feature-card {
    text-align: center;
    padding: var(--spacing-8);
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-6);
    color: var(--white);
    font-size: var(--font-size-2xl);
}

.feature-card h3 {
    margin-bottom: var(--spacing-3);
    color: var(--gray-900);
}

.feature-card p {
    color: var(--gray-600);
    margin-bottom: 0;
}

/* ===== REVIEWS SECTION ===== */
.reviews-section {
    padding: var(--spacing-24) 0;
    background: var(--white);
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-8);
}

.video-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.video-container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: var(--gray-100);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.video-container::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 64px;
    height: 64px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" fill="white" viewBox="0 0 24 24"><path d="M8 6.82v10.36c0 .79.87 1.27 1.54.84l8.14-5.18c.62-.39.62-1.29 0-1.68L9.54 5.98C8.87 5.55 8 6.03 8 6.82z"/></svg>') no-repeat center;
    background-size: contain;
    opacity: 0.3;
    pointer-events: none;
    z-index: 1;
}

.video-container iframe:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.video-card h3 {
    padding: var(--spacing-4);
    margin: 0;
    font-size: var(--font-size-lg);
    color: var(--gray-900);
    text-align: center;
}

/* ===== FAQ SECTION ===== */
.faq-section {
    padding: var(--spacing-24) 0;
    background: linear-gradient(135deg, var(--gray-50), var(--white));
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-4);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-6);
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--gray-50);
}

.faq-question h3 {
    margin: 0;
    font-size: var(--font-size-lg);
    color: var(--gray-900);
}

.faq-question i {
    color: var(--primary);
    transition: var(--transition);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 0 var(--spacing-6) var(--spacing-6);
}

.faq-answer p {
    margin: 0;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===== CONTACT SECTION ===== */
.contact-section {
    padding: var(--spacing-24) 0;
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-16);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    padding: var(--spacing-6);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.contact-item:hover {
    background: var(--gray-100);
    transform: translateX(8px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-xl);
}

.contact-details h3 {
    margin: 0 0 var(--spacing-2) 0;
    color: var(--gray-900);
}

.contact-details p {
    margin: 0 0 var(--spacing-2) 0;
    color: var(--gray-600);
}

.contact-link {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
}

.contact-link:hover {
    text-decoration: underline;
}

.contact-form {
    background: var(--gray-50);
    padding: var(--spacing-8);
    border-radius: var(--radius-xl);
}

.form-group {
    margin-bottom: var(--spacing-4);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: var(--transition);
    background: var(--white);
    color: var(--gray-700);
    line-height: 1.5;
    min-height: 48px; /* Touch-friendly height */
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-group select {
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="%236b7280"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"/></svg>');
    background-repeat: no-repeat;
    background-position: right var(--spacing-3) center;
    background-size: 20px;
    padding-right: var(--spacing-12);
    cursor: pointer;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    transform: translateY(-1px);
}

.form-group input:invalid:not(:focus):not(:placeholder-shown),
.form-group select:invalid:not(:focus),
.form-group textarea:invalid:not(:focus):not(:placeholder-shown) {
    border-color: var(--error);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
    opacity: 1;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    max-height: 200px;
    font-family: var(--font-family);
}

/* Form labels and help text */
.form-label {
    display: block;
    margin-bottom: var(--spacing-1);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--gray-700);
}

.form-help {
    font-size: var(--font-size-xs);
    color: var(--gray-500);
    margin-top: var(--spacing-1);
}

/* Mobile form improvements */
@media (max-width: 768px) {
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px; /* Prevents zoom on iOS */
        min-height: 52px;
        padding: var(--spacing-4);
    }
    
    .form-group select {
        background-size: 24px;
        padding-right: var(--spacing-16);
    }
    
    .form-group textarea {
        min-height: 140px;
    }
}

/* ===== FOOTER ===== */
.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: var(--spacing-24) 0 var(--spacing-8);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-12);
    margin-bottom: var(--spacing-12);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.footer-logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
}

.footer-logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary);
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: var(--spacing-4);
}

.footer-section p {
    color: var(--gray-400);
    margin-bottom: var(--spacing-4);
}

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

.footer-links li {
    margin-bottom: var(--spacing-2);
}

.footer-links a {
    color: var(--gray-400);
    transition: var(--transition);
}

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

.social-links {
    display: flex;
    gap: var(--spacing-3);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.contact-info-footer p {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-2);
}

.contact-info-footer i {
    color: var(--primary);
    width: 16px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-8);
    border-top: 1px solid var(--gray-800);
    color: var(--gray-400);
}

/* ===== RESPONSIVE DESIGN ===== */

/* Mobile Navigation Styles */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 76px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 76px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: var(--spacing-8);
        transition: var(--transition);
        z-index: 999;
        box-shadow: var(--shadow-xl);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        padding: var(--spacing-4) var(--spacing-6);
        font-size: var(--font-size-lg);
        width: 100%;
        text-align: center;
        border-bottom: 1px solid var(--gray-200);
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

/* Tablet Responsive */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-12);
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero-stats {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-12);
    }
    
    .software-grid {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    }
    
    .video-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

/* Mobile Responsive - Small screens */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-4);
    }
    
    .hero {
        padding: var(--spacing-24) 0 var(--spacing-16);
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
        line-height: 1.2;
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-subtitle {
        font-size: var(--font-size-base);
    }
    
    .software-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
    
    .video-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-6);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-3);
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
        padding: var(--spacing-4) var(--spacing-6);
        font-size: var(--font-size-base);
    }
    
    .floating-card {
        display: none;
    }
    
    /* Software cards mobile optimization */
    .software-card {
        margin: 0;
        border-radius: var(--radius-lg);
    }
    
    .software-card.featured {
        transform: none;
    }
    
    .card-image {
        max-width: 150px;
    }
    
    /* Contact section mobile */
    .contact-item {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-4);
    }
    
    .contact-icon {
        margin-bottom: var(--spacing-2);
    }
    
    /* Form mobile optimization */
    .contact-form {
        padding: var(--spacing-6);
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: var(--font-size-base);
        padding: var(--spacing-4);
    }
    
    /* Footer mobile */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
}

/* Extra small mobile devices */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-3);
    }
    
    .hero {
        padding: var(--spacing-20) 0 var(--spacing-12);
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
        margin-bottom: var(--spacing-4);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-description {
        font-size: var(--font-size-base);
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-4);
    }
    
    .stat-item {
        padding: var(--spacing-2);
    }
    
    .software-card {
        margin: 0 var(--spacing-1);
    }
    
    .card-body {
        padding: var(--spacing-4);
    }
    
    .card-title {
        font-size: var(--font-size-lg);
    }
    
    .card-description {
        font-size: var(--font-size-sm);
    }
    
    .btn {
        padding: var(--spacing-3) var(--spacing-4);
        font-size: var(--font-size-sm);
    }
    
    /* Navigation mobile optimization */
    .nav-container {
        padding: var(--spacing-3) var(--spacing-4);
    }
    
    .logo-img {
        width: 32px;
        height: 32px;
    }
    
    .logo-text {
        font-size: var(--font-size-lg);
    }
    
    /* Video responsiveness for small screens */
    .video-container {
        padding-bottom: 60%; /* Slightly taller aspect ratio for mobile */
    }
    
    /* FAQ mobile optimization */
    .faq-question {
        padding: var(--spacing-4);
    }
    
    .faq-question h3 {
        font-size: var(--font-size-base);
    }
    
    .faq-answer {
        padding: 0 var(--spacing-4) var(--spacing-4);
    }
    
    /* Alert mobile */
    .alert-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-2);
    }
    
    .alert-text {
        font-size: var(--font-size-sm);
    }
}

/* Large screens optimization */
@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: calc(var(--font-size-6xl) + 0.5rem);
    }
    
    .software-grid {
        grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 48px; /* Touch target size */
        padding: var(--spacing-4) var(--spacing-6);
    }
    
    .nav-link {
        min-height: 48px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .contact-link {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }
    
    /* Remove hover effects on touch devices */
    .software-card:hover {
        transform: none;
        box-shadow: var(--shadow);
    }
    
    .feature-card:hover {
        transform: none;
    }
    
    .video-card:hover {
        transform: none;
    }
}

/* High DPI screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero-image,
    .card-image,
    .logo-img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Landscape orientation on mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        padding: var(--spacing-16) 0 var(--spacing-12);
    }
    
    .nav-menu {
        height: calc(100vh - 60px);
        padding-top: var(--spacing-4);
    }
    
    .hero-stats {
        flex-direction: row;
        justify-content: center;
    }
}

/* Print styles */
@media print {
    .navbar,
    .hero-buttons,
    .contact-form,
    .floating-card {
        display: none;
    }
    
    .hero {
        padding: var(--spacing-8) 0;
    }
    
    .software-card {
        break-inside: avoid;
        margin-bottom: var(--spacing-4);
    }
    
    body {
        background: white;
        color: black;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.slide-in-left {
    opacity: 0;
    animation: slideInLeft 0.8s ease-out forwards;
}

.slide-in-right {
    opacity: 0;
    animation: slideInRight 0.8s ease-out forwards;
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-5 { margin-bottom: var(--spacing-5); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-5 { margin-top: var(--spacing-5); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }

.hidden { display: none; }
.block { display: block; }
.flex { display: flex; }
.grid { display: grid; }

/* ===== SCROLLBAR STYLING ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: var(--radius);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

/* ===== SELECTION STYLING ===== */
::selection {
    background: var(--primary);
    color: var(--white);
}

::-moz-selection {
    background: var(--primary);
    color: var(--white);
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */

/* Image optimization */
img {
    max-width: 100%;
    height: auto;
    display: block;
    image-rendering: -webkit-optimize-contrast;
}

.hero-image,
.card-image,
.logo-img {
    object-fit: cover;
    object-position: center;
}

/* Lazy loading states */
img[data-src] {
    opacity: 0;
    transition: opacity 0.3s ease;
}

img[data-src].loaded {
    opacity: 1;
}

img[data-src].error {
    opacity: 0.5;
    background: var(--gray-200);
}

/* Animation performance */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .floating-card {
        animation: none;
    }
    
    .hero-image {
        animation: none;
    }
}

/* GPU acceleration for animations */
.software-card,
.feature-card,
.video-card,
.btn,
.nav-menu {
    transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Smooth scrolling performance */
html {
    scroll-behavior: smooth;
}

@media (max-width: 768px) {
    html {
        scroll-behavior: auto; /* Disable on mobile for better performance */
    }
}

/* Viewport optimizations */
@viewport {
    width: device-width;
    zoom: 1.0;
}

/* Critical loading optimizations */
.above-fold {
    will-change: transform, opacity;
}

.below-fold {
    content-visibility: auto;
    contain-intrinsic-size: 300px;
}

/* Mobile-specific performance */
@media (max-width: 768px) {
    /* Reduce animations for better performance */
    .software-card:hover,
    .feature-card:hover,
    .video-card:hover {
        transform: none;
    }
    
    /* Optimize background attachments */
    .hero::before {
        background-attachment: scroll;
    }
    
    /* Reduce blur effects on mobile */
    .navbar {
        backdrop-filter: none;
        background: rgba(255, 255, 255, 0.98);
    }
    
    .nav-menu {
        backdrop-filter: none;
        background: rgba(255, 255, 255, 0.98);
    }
}