/* Alfo AI Consulting - Main Stylesheet
   Dark Theme with Red Accents
   Mobile-First Responsive Design */

/* ================================
   CSS Variables & Reset
   ================================ */
:root {
    --bg-primary: #1a1a1a;
    --bg-secondary: #242424;
    --bg-card: #2d2d2d;
    --bg-hover: #363636;
    --accent-red: #e53935;
    --accent-red-hover: #c62828;
    --accent-red-light: #ff5252;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #808080;
    --border-color: #3a3a3a;
    --success: #4caf50;
    --warning: #ff9800;
    --gradient-dark: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    --gradient-red: linear-gradient(135deg, #e53935 0%, #c62828 100%);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* ================================
   Typography
   ================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.25rem); }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.text-accent { color: var(--accent-red); }
.text-center { text-align: center; }
.text-gradient {
    background: var(--gradient-red);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    color: var(--accent-red);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

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

section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

/* ================================
   Navigation
   ================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(26, 26, 26, 0.98);
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.5rem;
}

.logo img {
    height: 45px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    display: block;
}

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

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-red);
    transition: var(--transition-fast);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ================================
   Buttons
   ================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary {
    background: var(--gradient-red);
    color: white;
    box-shadow: 0 4px 15px rgba(229, 57, 53, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(229, 57, 53, 0.5);
}

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

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

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

.btn-outline:hover {
    background: var(--accent-red);
    color: white;
}

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

.btn-white:hover {
    background: var(--text-secondary);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

/* ================================
   Hero Section
   ================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 70px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(229, 57, 53, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(229, 57, 53, 0.05) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero h1 {
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--accent-red);
    margin-bottom: 0.25rem;
}

.stat-item p {
    color: var(--text-muted);
    margin: 0;
    font-size: 0.9rem;
}

/* ================================
   Cards
   ================================ */
.card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-red);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-red);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.card h3 {
    margin-bottom: 1rem;
}

.card p {
    margin-bottom: 0;
}

/* ================================
   Services Grid
   ================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

/* ================================
   Pricing Cards
   ================================ */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    align-items: start;
}

.pricing-card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    position: relative;
    transition: var(--transition-normal);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border-color: var(--accent-red);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-red);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.pricing-header h3 {
    margin-bottom: 0.5rem;
}

.pricing-header p {
    color: var(--text-muted);
    margin: 0;
}

.pricing-price {
    margin: 1.5rem 0;
}

.price-main {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-primary);
}

.price-main span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-muted);
}

.price-setup {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.pricing-features {
    margin-bottom: 2rem;
}

.pricing-features li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features i {
    color: var(--accent-red);
}

/* ================================
   Process Steps
   ================================ */
.process-section {
    background: var(--bg-secondary);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    position: relative;
}

.process-step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--gradient-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 800;
    margin: 0 auto 1.5rem;
    position: relative;
    z-index: 1;
}

.step-content h3 {
    margin-bottom: 0.75rem;
}

.step-content p {
    color: var(--text-muted);
}

/* ================================
   Testimonials
   ================================ */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border-color);
}

.testimonial-stars {
    color: var(--warning);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-red);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
}

.author-info h4 {
    margin: 0;
    font-size: 1rem;
}

.author-info p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ================================
   Contact Form
   ================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h2 {
    margin-bottom: 1.5rem;
}

.contact-methods {
    margin-top: 2rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-card);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-red);
    font-size: 1.25rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-red);
    box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-error {
    color: var(--accent-red);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: var(--accent-red);
}

.form-group.error .form-error {
    display: block;
}

/* ================================
   Comparison Table
   ================================ */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 3rem;
    background: var(--bg-card);
    border-radius: 16px;
    overflow: hidden;
}

.comparison-table th,
.comparison-table td {
    padding: 1.25rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-primary);
}

.comparison-table th.featured {
    background: var(--accent-red);
    color: white;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table td.featured {
    background: rgba(229, 57, 53, 0.1);
}

.check-icon {
    color: var(--success);
    font-size: 1.25rem;
}

.x-icon {
    color: var(--text-muted);
    font-size: 1.25rem;
}

/* ================================
   CTA Section
   ================================ */
.cta-section {
    background: var(--gradient-red);
    text-align: center;
    padding: 5rem 0;
}

.cta-section h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta-section p {
    color: rgba(255,255,255,0.9);
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

/* ================================
   Footer
   ================================ */
.footer {
    background: var(--bg-secondary);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: var(--text-muted);
    margin-top: 1rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--accent-red);
    color: white;
}

.footer-links h4 {
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

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

.footer-links a {
    color: var(--text-muted);
    transition: var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: var(--text-muted);
    margin: 0;
    font-size: 0.875rem;
}

.newsletter-form {
    display: flex;
    gap: 0.5rem;
}

.newsletter-form input {
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    min-width: 250px;
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--accent-red);
}

/* ================================
   Landing Page Styles
   ================================ */
.landing-hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding-top: 70px;
}

.landing-hero.compact {
    min-height: auto;
    padding: 8rem 0 4rem;
}

.landing-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.landing-visual {
    position: relative;
}

.landing-image {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
}

.landing-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-card);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.landing-badge i {
    color: var(--accent-red);
}

.landing-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin: 2rem 0;
}

.landing-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.landing-feature i {
    color: var(--accent-red);
}

.trust-badges {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.trust-badges img {
    height: 30px;
    opacity: 0.6;
    filter: grayscale(100%);
    transition: var(--transition-fast);
}

.trust-badges img:hover {
    opacity: 1;
    filter: grayscale(0%);
}

/* LinkedIn Landing */
.linkedin-hero {
    background: linear-gradient(135deg, #0077b5 0%, #1a1a1a 60%);
}

.linkedin-hero .landing-badge {
    background: rgba(0, 119, 181, 0.2);
    border-color: #0077b5;
}

/* Instagram Landing */
.instagram-hero {
    background: linear-gradient(135deg, #833ab4 0%, #fd1d1d 30%, #f77737 60%, #1a1a1a 100%);
}

.instagram-hero .landing-badge {
    background: rgba(253, 29, 29, 0.2);
    border-color: #fd1d1d;
}

/* Google Ads Landing */
.google-hero {
    background: linear-gradient(135deg, #4285f4 0%, #ea4335 30%, #1a1a1a 70%);
}

.google-hero .landing-badge {
    background: rgba(66, 133, 244, 0.2);
    border-color: #4285f4;
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

.pulse-animation {
    animation: pulse 2s infinite;
}

.float-animation {
    animation: float 3s ease-in-out infinite;
}

/* ================================
   Toast Notifications
   ================================ */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toast {
    background: var(--bg-card);
    border-left: 4px solid var(--accent-red);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 1rem;
    min-width: 300px;
    animation: slideIn 0.3s ease;
}

.toast.success {
    border-left-color: var(--success);
}

.toast.error {
    border-left-color: var(--accent-red);
}

.toast.info {
    border-left-color: var(--accent-red-light);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ================================
   Responsive Design
   ================================ */
@media (max-width: 1024px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .landing-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .landing-visual {
        order: -1;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-10px);
    }
    
    .comparison-table {
        display: block;
        overflow-x: auto;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .newsletter-form {
        flex-direction: column;
        width: 100%;
    }
    
    .newsletter-form input {
        min-width: auto;
    }
    
    .trust-badges {
        justify-content: center;
    }
    
    .landing-features {
        grid-template-columns: 1fr;
        text-align: left;
        max-width: 300px;
        margin: 2rem auto;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .process-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
}

/* ================================
   Print Styles
   ================================ */
@media print {
    .navbar,
    .footer,
    .btn,
    .mobile-menu-btn {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .card,
    .pricing-card,
    .testimonial-card {
        border: 1px solid #ccc;
        break-inside: avoid;
    }
}