/* BlinkShare Styling System - CSS Stylesheet */
/* Based on the provided design system document */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: #090b10;
    /* $color-dark-bg */
    color: #ffffff;
    /* $color-white */
    line-height: 1.6;
    overflow-x: hidden;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
    color: #d1d5db;
    /* $color-gray-300 */
}

a {
    color: #129BDE;
    /* $color-primary-blue */
    text-decoration: none;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

a:hover {
    color: #0076b2;
    /* $color-accent-blue */
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(9, 11, 16, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo-icon {
    width: 40px;
    height: 40px;
}

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

.nav-links li a {
    color: #d1d5db;
    /* $color-gray-300 */
    font-weight: 500;
}

.nav-links li a:hover {
    color: #ffffff;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
    background: linear-gradient(135deg, #129BDE, #0076b2);
    /* $color-primary-blue to $color-accent-blue */
    color: #ffffff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(18, 155, 222, 0.2);
}

.btn-secondary {
    background: transparent;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    border-color: #129BDE;
    /* $color-primary-blue */
    background: rgba(18, 155, 222, 0.1);
}

.btn-dark {
    background: #1a1d27;
    /* $color-dark-secondary */
    color: #ffffff;
}

.btn-dark:hover {
    background: #222633;
    /* lightened $color-dark-secondary */
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: #ffffff;
    border-radius: 1px;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Hero Section */
.hero {
    padding: 8rem 2rem 4rem;
    background: linear-gradient(180deg, #090b10 0%, #0c0e16 100%);
    /* $color-dark-bg to lightened */
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    animation: fade-in-slide-down 600ms ease-out;
}

.badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.badge-primary {
    background: linear-gradient(135deg, rgba(18, 155, 222, 0.2), rgba(92, 198, 73, 0.2));
    /* $color-primary-blue and $color-primary-green */
    color: #129BDE;
    /* $color-primary-blue */
    border: 1px solid rgba(18, 155, 222, 0.3);
}

.badge-success {
    background: rgba(34, 197, 94, 0.2);
    /* $color-green-accent */
    color: #22c55e;
    /* $color-green-accent */
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.hero-highlight {
    background: linear-gradient(135deg, #129BDE, #5CC649);
    /* $color-primary-blue to $color-primary-green */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin: 2rem 0;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.stat-item {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 12px;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(15px);
    border-color: rgba(255, 255, 255, 0.15);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #129BDE, #5CC649);
    /* $color-primary-blue to $color-primary-green */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: #9ca3af;
    /* $color-gray-400 */
}

/* Chat Mockup */
.chat-mockup {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    animation: slide-in-from-bottom 600ms ease-out;
}

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #22c55e;
    /* $color-green-accent */
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    /* $color-green-accent */
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes fade-in-slide-down {
    from {
        transform: translateY(-10px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slide-in-from-bottom {
    from {
        transform: translateY(20px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.chat-message,
.chat-suggestion,
.chat-response {
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.chat-message {
    background: rgba(18, 155, 222, 0.1);
    /* $color-primary-blue */
    border: 1px solid rgba(18, 155, 222, 0.2);
}

.chat-suggestion {
    background: rgba(34, 197, 94, 0.1);
    /* $color-green-accent */
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.chat-response {
    background: rgba(17, 24, 39, 0.5);
    /* $color-gray-900 */
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1.5rem;
}

.metric-card {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 12px;
    text-align: center;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.metric-card:hover {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(15px);
    border-color: rgba(255, 255, 255, 0.15);
}

.metric-value {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.metric-label {
    font-size: 0.875rem;
    color: #9ca3af;
    /* $color-gray-400 */
}

/* Section Styles */
.section {
    padding: 6rem 2rem;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    max-width: 600px;
    margin: 0 auto;
}

/* Challenge Section */
.challenge-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.challenge-card {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2.5rem;
    border-radius: 20px;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.challenge-card:hover {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(15px);
    border-color: rgba(255, 255, 255, 0.15);
}

.challenge-without h3 {
    color: #ef4444;
    /* $color-red-accent */
}

.challenge-with h3 {
    color: #22c55e;
    /* $color-green-accent */
}

.challenge-icon {
    margin-right: 0.5rem;
}

.challenge-list {
    list-style: none;
    margin: 1.5rem 0;
}

.challenge-list li {
    padding: 0.5rem 0;
    color: #d1d5db;
    /* $color-gray-300 */
}

.challenge-list li::before {
    content: "•";
    margin-right: 0.5rem;
}

.result-box {
    padding: 1rem;
    border-radius: 12px;
    font-weight: 600;
    margin-top: 1.5rem;
    text-align: center;
}

.challenge-without .result-box {
    background: rgba(239, 68, 68, 0.1);
    /* $color-red-accent */
    color: #ef4444;
    /* $color-red-accent */
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.challenge-with .result-box {
    background: rgba(34, 197, 94, 0.1);
    /* $color-green-accent */
    color: #22c55e;
    /* $color-green-accent */
    border: 1px solid rgba(34, 197, 94, 0.2);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 16px;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(15px);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

/* How It Works */
.workflow-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.workflow-step {
    text-align: center;
    padding: 2rem;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.workflow-step:hover {
    transform: translateY(-4px);
}

.step-badge {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #129BDE, #5CC649);
    /* $color-primary-blue to $color-primary-green */
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.workflow-metrics {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-top: 3rem;
}

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

.workflow-metric h4 {
    font-size: 2.5rem;
    background: linear-gradient(135deg, #129BDE, #5CC649);
    /* $color-primary-blue to $color-primary-green */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Use Cases */
.use-case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.use-case-card {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2.5rem;
    border-radius: 20px;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.use-case-card:hover {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(15px);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.use-case-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.use-case-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.use-case-title {
    flex: 1;
}

.use-case-title h3 {
    margin-bottom: 0.5rem;
}

.use-case-features {
    list-style: none;
    margin: 1.5rem 0;
}

.use-case-features li {
    padding: 0.5rem 0;
    color: #d1d5db;
    /* $color-gray-300 */
}

.use-case-features li::before {
    content: "✓";
    color: #22c55e;
    /* $color-green-accent */
    margin-right: 0.75rem;
}

.use-case-stat {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 12px;
    text-align: center;
    margin-top: 1.5rem;
}

/* Testimonials */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 16px;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-card:hover {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(15px);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.stars {
    color: #fbbf24;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: #d1d5db;
    /* $color-gray-300 */
}

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

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #129BDE, #5CC649);
    /* $color-primary-blue to $color-primary-green */
}

.testimonial-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    text-align: center;
}

.testimonial-stat h4 {
    font-size: 2rem;
    background: linear-gradient(135deg, #129BDE, #5CC649);
    /* $color-primary-blue to $color-primary-green */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.pricing-card {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.pricing-card:hover {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(15px);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.pricing-card.featured {
    border: 2px solid #129BDE;
    /* $color-primary-blue */
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-4px);
}

.pricing-popular {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: #129BDE;
    /* $color-primary-blue */
    color: #ffffff;
    padding: 0.25rem 1rem;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 600;
}

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

.pricing-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #129BDE, #5CC649);
    /* $color-primary-blue to $color-primary-green */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-period {
    font-size: 1rem;
    color: #9ca3af;
    /* $color-gray-400 */
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-top: 2rem;
}

.pricing-features li {
    padding: 0.5rem 0;
    color: #d1d5db;
    /* $color-gray-300 */
}

.pricing-features li::before {
    content: "✓";
    color: #22c55e;
    /* $color-green-accent */
    margin-right: 0.75rem;
}

/* CTA Section */
.cta {
    text-align: center;
    background: linear-gradient(180deg, #1a1d27 0%, #090b10 100%);
    /* $color-dark-secondary to $color-dark-bg */
    padding: 6rem 2rem;
}

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

.cta p {
    max-width: 600px;
    margin: 0 auto 2rem;
}

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

.cta-note {
    color: #9ca3af;
    /* $color-gray-400 */
    font-size: 0.875rem;
    margin-bottom: 3rem;
}

.trust-badges {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 3rem;
}

.badge-item {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    font-size: 0.875rem;
    color: #d1d5db;
    /* $color-gray-300 */
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 3rem auto;
}

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

.contact-form form div:nth-child(5) {
    grid-column: span 2;
}

.contact-form input,
.contact-form .message-box {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #ffffff;
    font-family: inherit;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-form input:focus,
.contact-form .message-box:focus {
    outline: none;
    border-color: #129BDE;
    /* $color-primary-blue */
    background: rgba(255, 255, 255, 0.08);
}

.contact-form input::placeholder,
.contact-form .message-box::placeholder {
    color: #6b7280;
    /* $color-gray-500 */
}

.contact-form .message-box {
    min-height: 100px;
    resize: vertical;
}

.btn-send {
    grid-column: span 2;
    background: linear-gradient(135deg, #129BDE, #0076b2);
    /* $color-primary-blue to $color-accent-blue */
    color: #ffffff;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-send:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(18, 155, 222, 0.2);
}

/* Footer */
footer {
    background: #1a1d27;
    /* $color-dark-secondary */
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 4rem 2rem 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    margin-bottom: 1.5rem;
    color: #ffffff;
}

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

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

.footer-section ul li a {
    color: #9ca3af;
    /* $color-gray-400 */
}

.footer-section ul li a:hover {
    color: #ffffff;
}

.footer-description {
    color: #9ca3af;
    /* $color-gray-400 */
    margin: 1rem 0;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.footer-contact a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #9ca3af;
    /* $color-gray-400 */
}

.footer-contact a:hover {
    color: #ffffff;
}

.footer-contact a svg {
    flex-shrink: 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #6b7280;
    /* $color-gray-500 */
    font-size: 0.875rem;
}

/* Responsive Design - Mobile First */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .hero {
        padding: 6rem 1rem 3rem;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .challenge-content,
    .contact-form form {
        grid-template-columns: 1fr;
    }

    .use-case-grid,
    .features-grid,
    .testimonial-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .workflow-steps {
        grid-template-columns: 1fr;
    }

    .workflow-metrics,
    .testimonial-stats {
        flex-direction: column;
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .pricing-card.featured {
        transform: none;
    }

    .pricing-card.featured:hover {
        transform: translateY(-4px);
    }

    .contact-form form div:nth-child(5) {
        grid-column: span 1;
    }

    .btn-send {
        grid-column: span 1;
    }
}

/* Accessibility Focus States */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid #129BDE;
    /* $color-primary-blue */
    outline-offset: 2px;
}