/* QuantumFlow - Complete Stylesheet */
/* Professional fintech SaaS platform design */

/* ==============================================
   CSS RESET & BASE STYLES
   ============================================== */
*,
*::before,
*::after {
    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, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background-color: #ffffff;
    font-weight: 400;
    overflow-x: hidden;
}

/* ==============================================
   TYPOGRAPHY
   ============================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: #1e293b;
}

h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
}

h3 {
    font-size: 1.8rem;
    font-weight: 600;
}

h4 {
    font-size: 1.4rem;
    font-weight: 600;
}

h5 {
    font-size: 1.2rem;
    font-weight: 600;
}

h6 {
    font-size: 1rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    color: #4b5563;
    line-height: 1.6;
}

a {
    color: #2563eb;
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: #1d4ed8;
}

/* ==============================================
   LAYOUT & UTILITIES
   ============================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==============================================
   HEADER & NAVIGATION
   ============================================== */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    transition: all 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links li {
    position: relative;
}

.nav-links a {
    text-decoration: none;
    color: #4b5563;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: #2563eb;
    background: rgba(37, 99, 235, 0.1);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #2563eb;
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 80%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #4b5563;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.mobile-menu-btn:hover {
    background: #f1f5f9;
    color: #2563eb;
}

/* ==============================================
   BUTTONS
   ============================================== */
.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: white;
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.cta-button::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: left 0.5s;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
    color: white;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:active {
    transform: translateY(-1px);
}

.cta-secondary {
    background: transparent;
    color: #2563eb;
    border: 2px solid #2563eb;
    box-shadow: none;
}

.cta-secondary:hover {
    background: #2563eb;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

/* ==============================================
   HERO SECTION
   ============================================== */
.hero {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
    padding: 6rem 0 5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(124, 58, 237, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 900;
    color: #1e293b;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    background: linear-gradient(135deg, #1e293b, #2563eb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .subtitle {
    font-size: 1.4rem;
    color: #64748b;
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

/* ==============================================
   SECTIONS
   ============================================== */
section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.8rem;
    font-weight: 800;
    color: #1e293b;
    margin-bottom: 1rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.3rem;
    color: #64748b;
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* ==============================================
   FEATURES
   ============================================== */
.features-overview {
    background: #ffffff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
}

.feature-card {
    background: #ffffff;
    padding: 3rem 2rem;
    border-radius: 20px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
    border: 1px solid #e2e8f0;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
    border-color: #2563eb;
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    font-size: 1.8rem;
    color: white;
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.feature-card p {
    color: #64748b;
    line-height: 1.7;
    font-size: 1rem;
}

/* Feature Details (for features page) */
.feature-details {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e2e8f0;
}

.feature-details h4 {
    font-size: 1.1rem;
    color: #2563eb;
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-details ul {
    list-style: none;
    padding: 0;
}

.feature-details li {
    padding: 0.3rem 0;
    position: relative;
    padding-left: 1.5rem;
    color: #4b5563;
}

.feature-details li:before {
    content: "→";
    color: #2563eb;
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* ==============================================
   USE CASES
   ============================================== */
.use-cases-preview {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.use-case-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    border-left: 5px solid #2563eb;
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.use-case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
    border-left-color: #7c3aed;
}

.use-case-card h4 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.use-case-card p {
    color: #64748b;
    line-height: 1.6;
}

/* ==============================================
   TESTIMONIALS
   ============================================== */
.testimonials {
    background: #ffffff;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
}

.testimonial-card {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
    position: relative;
    transition: all 0.3s ease;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 30px;
    font-size: 4rem;
    color: #2563eb;
    font-weight: bold;
    opacity: 0.3;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.12);
}

.testimonial-quote {
    font-style: italic;
    color: #4b5563;
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.6;
}

.testimonial-author {
    font-weight: 700;
    color: #1e293b;
    font-size: 1.1rem;
}

.testimonial-company {
    color: #64748b;
    font-size: 0.95rem;
    margin-top: 0.5rem;
}

/* ==============================================
   CTA SECTION
   ============================================== */
.cta-section {
    background: linear-gradient(135deg, #1e293b 0%, #2563eb 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: white;
}

.cta-content p {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    color: #e2e8f0;
}

.cta-section .cta-button {
    background: white;
    color: #2563eb;
}

.cta-section .cta-button:hover {
    background: #f8fafc;
    color: #1d4ed8;
}

.cta-section .cta-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.cta-section .cta-secondary:hover {
    background: white;
    color: #2563eb;
}

/* ==============================================
   PAGE LAYOUT
   ============================================== */
.page-content {
    padding: 4rem 0;
    min-height: 60vh;
}

.page-header {
    text-align: center;
    margin-bottom: 4rem;
    padding: 3rem 0;
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
}

.page-title {
    font-size: 3rem;
    font-weight: 800;
    color: #1e293b;
    margin-bottom: 1rem;
}

.breadcrumb {
    background: #f8fafc;
    padding: 1rem 0;
    font-size: 0.9rem;
    border-bottom: 1px solid #e2e8f0;
}

.breadcrumb a {
    color: #2563eb;
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    color: #64748b;
    margin: 0 0.5rem;
}

/* ==============================================
   PRICING
   ============================================== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
}

.pricing-card {
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 20px;
    padding: 3rem 2rem;
    text-align: center;
    position: relative;
    transition: all 0.4s ease;
    overflow: hidden;
}

.pricing-card.featured {
    border-color: #2563eb;
    transform: scale(1.05);
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

.pricing-card:hover {
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.15);
    transform: translateY(-5px);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.pricing-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #1e293b;
}

.pricing-price {
    font-size: 3.5rem;
    font-weight: 900;
    color: #2563eb;
    margin-bottom: 0.5rem;
}

.pricing-period {
    color: #64748b;
    margin-bottom: 2.5rem;
    font-size: 1.1rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: 3rem;
    text-align: left;
}

.pricing-features li {
    padding: 0.8rem 0;
    border-bottom: 1px solid #f1f5f9;
    position: relative;
    padding-left: 2rem;
    color: #4b5563;
}

.pricing-features li:before {
    content: "✓";
    color: #10b981;
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0.8rem;
}

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

.plan-note {
    font-size: 0.9rem;
    color: #64748b;
    text-align: center;
    margin-top: 1rem;
    font-style: italic;
}

/* ==============================================
   TABLES
   ============================================== */
.feature-comparison {
    background: #f8fafc;
}

.comparison-table {
    overflow-x: auto;
    margin-top: 3rem;
}

.comparison-table table {
    width: 100%;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.comparison-table th {
    background: #1e293b;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
}

.comparison-table td {
    color: #4b5563;
    font-size: 0.9rem;
}

.comparison-table tr:hover {
    background: #f8fafc;
}

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

/* ==============================================
   FORMS
   ============================================== */
.contact-form {
    background: white;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid #e2e8f0;
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.8rem;
    font-weight: 600;
    color: #1e293b;
    font-size: 1.1rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
    background: white;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
    cursor: pointer;
    font-size: 0.95rem;
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
    flex-shrink: 0;
}

/* Form Error States */
.form-group input.error,
.form-group textarea.error,
.form-group select.error {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.error-message {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* ==============================================
   FAQ
   ============================================== */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.faq-question {
    background: #f8fafc;
    padding: 1.5rem 2rem;
    cursor: pointer;
    font-weight: 600;
    color: #1e293b;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    user-select: none;
}

.faq-question:hover {
    background: #f1f5f9;
}

.faq-icon {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
    color: #2563eb;
    font-weight: bold;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 2rem;
    color: #4b5563;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    line-height: 1.6;
}

.faq-answer.active {
    padding: 1.5rem 2rem;
    max-height: 500px;
}

/* ==============================================
   CONTACT PAGE SPECIFIC
   ============================================== */
.contact-options {
    background: #f8fafc;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0,0,0,0.12);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.contact-card h3 {
    color: #1e293b;
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.contact-link {
    display: inline-block;
    color: #2563eb;
    font-weight: 600;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 2px solid #2563eb;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.contact-link:hover {
    background: #2563eb;
    color: white;
}

.contact-note {
    font-size: 0.9rem;
    color: #10b981;
    margin-top: 1rem;
    font-weight: 500;
}

.contact-form-section {
    background: #ffffff;
}

.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.form-container h2 {
    color: #1e293b;
    margin-bottom: 1rem;
    font-size: 2rem;
}

.form-container > p {
    color: #64748b;
    margin-bottom: 2.5rem;
    font-size: 1.1rem;
}

.contact-info {
    background: #f8fafc;
    padding: 2.5rem;
    border-radius: 16px;
    height: fit-content;
}

.contact-info h3 {
    color: #1e293b;
    margin-bottom: 2rem;
    font-size: 1.5rem;
}

.info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    align-items: flex-start;
}

.info-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.info-item h4 {
    color: #1e293b;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.info-item p {
    color: #4b5563;
    margin-bottom: 0.3rem;
}

.info-item small {
    color: #64748b;
    font-size: 0.85rem;
}

.info-item a {
    color: #2563eb;
    text-decoration: none;
}

.info-item a:hover {
    text-decoration: underline;
}

.social-section {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid #e2e8f0;
}

.social-section h4 {
    color: #1e293b;
    margin-bottom: 1rem;
}

/* ==============================================
   FOOTER
   ============================================== */
footer {
    background: linear-gradient(135deg, #1e293b 0%, #374151 100%);
    color: #94a3b8;
    padding: 4rem 0 2rem;
}

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

.footer-section h4 {
    color: white;
    font-weight: 700;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-section p {
    color: #94a3b8;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.footer-section a {
    color: #94a3b8;
    text-decoration: none;
    display: block;
    margin-bottom: 0.8rem;
    transition: all 0.3s ease;
    padding: 0.3rem 0;
}

.footer-section a:hover {
    color: #2563eb;
    padding-left: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-legal {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-legal a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
    padding: 0;
    margin: 0;
    display: inline;
}

.footer-legal a:hover {
    color: #2563eb;
    padding-left: 0;
}

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

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: #374151;
    border-radius: 12px;
    color: #94a3b8;
    transition: all 0.3s ease;
    text-decoration: none;
    margin: 0;
    padding: 0;
}

.social-links a:hover {
    background: #2563eb;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
    padding-left: 0;
}

/* ==============================================
   ADDITIONAL COMPONENTS
   ============================================== */

/* Tech Specs Section */
.tech-specs {
    background: #f8fafc;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.spec-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.spec-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.spec-card h3 {
    color: #1e293b;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.spec-card ul {
    list-style: none;
    padding: 0;
}

.spec-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #f1f5f9;
    color: #4b5563;
}

.spec-card li:last-child {
    border-bottom: none;
}

.spec-card strong {
    color: #1e293b;
}

/* API Preview Section */
.api-preview {
    background: #ffffff;
}

.api-example {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    margin-top: 3rem;
    background: #1e293b;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0,0,0,0.15);
}

.api-code,
.api-response {
    padding: 2rem;
}

.api-code {
    background: #1e293b;
    border-right: 1px solid #374151;
}

.api-response {
    background: #111827;
}

.api-code h4,
.api-response h4 {
    color: #e2e8f0;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.api-code pre,
.api-response pre {
    background: transparent;
    color: #e2e8f0;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    overflow-x: auto;
    margin: 0;
    white-space: pre-wrap;
}

.api-code code {
    color: #10b981;
}

.api-response code {
    color: #60a5fa;
}

/* Add-ons Section */
.addons-section {
    background: #ffffff;
}

.addons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.addon-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
    text-align: center;
}

.addon-card:hover {
    border-color: #2563eb;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.15);
}

.addon-card h3 {
    color: #1e293b;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.addon-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: 1rem;
}

.addon-card p:last-child {
    color: #64748b;
    line-height: 1.5;
}

/* Emergency Contact */
.emergency-contact {
    background: #fef2f2;
    border-top: 3px solid #ef4444;
}

.emergency-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid #fecaca;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: 0 4px 20px rgba(239, 68, 68, 0.1);
}

.emergency-card h3 {
    color: #dc2626;
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.emergency-card p {
    color: #4b5563;
    margin-bottom: 2rem;
}

.emergency-contacts {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.emergency-btn {
    background: #dc2626;
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.emergency-btn:hover {
    background: #b91c1c;
    transform: translateY(-2px);
    color: white;
}

.emergency-card small {
    color: #64748b;
    font-size: 0.9rem;
}

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

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

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

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #2563eb;
    border-radius: 50%;
    animation: spin 2s linear infinite;
}

/* ==============================================
   NOTIFICATIONS
   ============================================== */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    max-width: 400px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
    animation: slideInRight 0.3s ease-out;
}

.notification-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.5rem;
}

.notification-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    opacity: 0.8;
}

.notification-close:hover {
    opacity: 1;
}

.notification-success {
    background: #10b981;
    color: white;
}

.notification-error {
    background: #ef4444;
    color: white;
}

.notification-info {
    background: #2563eb;
    color: white;
}

/* ==============================================
   RESPONSIVE DESIGN
   ============================================== */
@media (max-width: 1200px) {
    .container {
        padding: 0 15px;
    }
    
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 2rem;
    }
    
    .pricing-card.featured {
        transform: none;
    }
}

@media (max-width: 768px) {
    /* Navigation */
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
        border-radius: 0 0 20px 20px;
        gap: 0.5rem;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        padding: 1rem;
        border-radius: 12px;
        text-align: center;
    }

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

    /* Typography */
    .hero h1 {
        font-size: 2.8rem;
    }

    .hero .subtitle {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .cta-content h2 {
        font-size: 2.2rem;
    }

    .page-title {
        font-size: 2.5rem;
    }

    /* Buttons */
    .cta-secondary {
        margin-left: 0;
        margin-top: 1rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-button {
        width: 100%;
        max-width: 300px;
    }

    /* Grids */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .specs-grid {
        grid-template-columns: 1fr;
    }

    .addons-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    /* Forms */
    .form-row {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    /* API Example */
    .api-example {
        grid-template-columns: 1fr;
    }

    .api-code {
        border-right: none;
        border-bottom: 1px solid #374151;
    }

    /* Tables */
    .comparison-table {
        font-size: 0.8rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 0.5rem;
    }

    /* Emergency */
    .emergency-contacts {
        flex-direction: column;
        align-items: center;
    }

    .emergency-btn {
        width: 100%;
        max-width: 300px;
    }

    /* Footer */
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .footer-legal {
        justify-content: center;
    }

    /* Feature details */
    .feature-details {
        margin-top: 1rem;
        padding-top: 1rem;
    }
}

@media (max-width: 480px) {
    /* Hero */
    .hero {
        padding: 4rem 0;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero .subtitle {
        font-size: 1.1rem;
    }

    /* Typography */
    .section-title {
        font-size: 1.8rem;
    }

    .page-title {
        font-size: 2rem;
    }

    /* Cards */
    .feature-card,
    .testimonial-card,
    .contact-card {
        padding: 2rem 1.5rem;
    }

    .contact-form {
        padding: 2rem 1.5rem;
    }

    .contact-info {
        padding: 2rem 1.5rem;
    }

    /* Pricing */
    .pricing-card {
        padding: 2rem 1.5rem;
    }

    .pricing-price {
        font-size: 2.8rem;
    }

    /* Notifications */
    .notification {
        left: 10px;
        right: 10px;
        max-width: none;
    }
}

/* ==============================================
   ACCESSIBILITY
   ============================================== */
/* Focus states for keyboard navigation */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus,
.faq-question:focus {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .feature-card,
    .testimonial-card,
    .pricing-card {
        border-width: 2px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* ==============================================
   PRINT STYLES
   ============================================== */
@media print {
    header,
    footer,
    .cta-section,
    .mobile-menu-btn,
    .social-links {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: #000;
    }
    
    .container {
        max-width: none;
        padding: 0;
    }
    
    .page-content {
        padding: 1rem 0;
    }
    
    a {
        color: #000;
        text-decoration: underline;
    }
}

/* ==============================================
   UTILITIES
   ============================================== */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.no-scroll {
    overflow: hidden;
}

.text-left { text-align: left; }
.text-right { text-align: right; }
.text-center { text-align: center; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }