/* ===== SMARTLEAD AI DESIGN SYSTEM ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #1a4cff;
    --primary-dark: #0d3ae0;
    --primary-light: #e6edff;
    --secondary: #f59e0b;
    --dark: #0b1b33;
    --dark-light: #162a4a;
    --dark-card: #1e293b;
    --gray: #475569;
    --gray-light: #f1f5f9;
    --gray-border: #e2e8f0;
    --white: #ffffff;
    --off-white: #f8fafc;
    --accent-emerald: #10b981;
    --accent-indigo: #6366f1;
    --shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.08);
    --shadow-hover: 0 20px 40px -10px rgba(26, 76, 255, 0.16);
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 32px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== TYPOGRAPHY & BADGES ===== */
h1, h2, h3, h4 {
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.2;
    color: var(--dark);
}

h1 { font-size: clamp(2.4rem, 5.5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.8vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

.highlight {
    color: var(--primary);
    background: linear-gradient(120deg, rgba(26, 76, 255, 0.12) 0%, rgba(16, 185, 129, 0.15) 100%);
    padding: 2px 10px;
    border-radius: 8px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 700;
    font-size: 0.8rem;
    padding: 6px 18px;
    border-radius: 40px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 16px;
    border: 1px solid rgba(26, 76, 255, 0.15);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 60px;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    min-height: 52px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
    color: var(--white);
    box-shadow: 0 8px 24px rgba(26, 76, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(26, 76, 255, 0.45);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
}

.btn-secondary {
    background: var(--white);
    color: var(--dark);
    border: 2px solid var(--gray-border);
    box-shadow: var(--shadow);
}

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

.btn-large {
    padding: 18px 44px;
    font-size: 1.05rem;
    min-height: 60px;
}

/* ===== HEADER & NAVBAR ===== */
.header {
    padding: 16px 0;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    transition: var(--transition);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.logo img {
    display: block;
    height: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav-menu a {
    color: var(--dark-light);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    padding: 4px 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
    border-radius: 2px;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
}

.mobile-toggle .bar {
    width: 26px;
    height: 3px;
    background: var(--dark);
    border-radius: 3px;
    transition: var(--transition);
}

/* ===== HERO SECTION ===== */
.hero {
    padding: 80px 0 70px;
    position: relative;
    overflow: hidden;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.08), transparent 50%),
                radial-gradient(circle at bottom left, rgba(16, 185, 129, 0.05), transparent 50%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.hero-title {
    font-size: clamp(2.4rem, 5.5vw, 3.8rem);
    line-height: 1.15;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--gray);
    max-width: 520px;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin: 12px 0;
    padding: 20px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-border);
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.1;
}

.stat-label {
    font-size: 0.88rem;
    color: var(--gray);
    font-weight: 500;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
}

.dashboard-mockup {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-hover);
    padding: 16px;
    border: 1px solid var(--gray-border);
    transition: var(--transition);
}

.dashboard-mockup:hover {
    transform: translateY(-4px);
}

.dashboard-mockup img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
}

.live-badge {
    position: absolute;
    bottom: 24px;
    right: 28px;
    background: rgba(11, 27, 51, 0.9);
    backdrop-filter: blur(10px);
    color: white;
    padding: 8px 18px;
    border-radius: 40px;
    font-size: 0.82rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.2);
}

.live-badge::before {
    content: '';
    width: 10px;
    height: 10px;
    background: #10b981;
    border-radius: 50%;
    animation: pulse 1.6s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.75); }
}

/* ===== SECTION HEADERS ===== */
.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 50px;
}

.section-header p {
    color: var(--gray);
    font-size: 1.15rem;
    margin-top: 10px;
}

/* ===== PROBLEM SECTION ===== */
.problem {
    padding: 80px 0;
    background: var(--white);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.problem-card {
    background: var(--off-white);
    padding: 36px 30px;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.problem-card::top {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: #ef4444;
    opacity: 0;
    transition: var(--transition);
}

.problem-card:hover {
    border-color: #fca5a5;
    transform: translateY(-6px);
    box-shadow: var(--shadow);
}

.problem-card .icon {
    font-size: 2.8rem;
    margin-bottom: 16px;
    display: inline-block;
}

.problem-card h3 {
    margin-bottom: 10px;
}

.problem-card p {
    color: var(--gray);
    font-size: 0.98rem;
}

/* ===== SOLUTION SECTION ===== */
.solution {
    padding: 80px 0;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.solution-card {
    background: var(--white);
    padding: 36px 30px;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-border);
    transition: var(--transition);
    position: relative;
}

.solution-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}

.solution-card.featured {
    background: linear-gradient(145deg, #1e1b4b 0%, #0b1b33 100%);
    color: var(--white);
    border-color: var(--accent-indigo);
}

.solution-card.featured h3,
.solution-card.featured p {
    color: var(--white);
}

.solution-card.featured p {
    opacity: 0.85;
}

.solution-card .icon {
    font-size: 2.8rem;
    margin-bottom: 16px;
    display: inline-block;
}

.solution-card h3 {
    margin-bottom: 10px;
}

.solution-card p {
    color: var(--gray);
}

/* ===== ROI CALCULATOR SECTION ===== */
.calculator-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    color: var(--white);
    position: relative;
}

.calculator-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: center;
}

.calc-header h2 {
    color: var(--white);
    margin-bottom: 12px;
}

.calc-header p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 1.05rem;
    margin-bottom: 32px;
}

.calc-controls {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.calc-group label {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 10px;
}

.calc-group label span {
    color: var(--secondary);
    font-weight: 700;
    font-size: 1.1rem;
}

.calc-slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.2);
    outline: none;
    accent-color: var(--primary);
    cursor: pointer;
}

.calc-result-box {
    background: linear-gradient(135deg, rgba(26, 76, 255, 0.25) 0%, rgba(16, 185, 129, 0.25) 100%);
    border: 1px solid rgba(16, 185, 129, 0.4);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.calc-result-title {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 700;
}

.calc-result-amount {
    font-size: clamp(2.4rem, 4vw, 3.4rem);
    font-weight: 900;
    color: #34d399;
    line-height: 1;
}

.calc-result-subtitle {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

/* ===== SERVICES SECTION ===== */
.services {
    padding: 80px 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 28px;
}

.service-card {
    background: var(--off-white);
    padding: 32px 28px;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-border);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
    background: var(--white);
}

.service-card .icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.service-card h3 {
    margin-bottom: 10px;
}

.service-card p {
    color: var(--gray);
    font-size: 0.96rem;
    margin-bottom: 20px;
}

.learn-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
}

.learn-more:hover {
    color: var(--primary-dark);
    transform: translateX(4px);
}

/* ===== CASE STUDIES ===== */
.case-studies {
    padding: 80px 0;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.case-card {
    background: var(--white);
    padding: 32px 28px;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-border);
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.case-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.case-tag {
    background: var(--primary-light);
    color: var(--primary);
    padding: 4px 16px;
    border-radius: 40px;
    font-size: 0.78rem;
    font-weight: 700;
}

.case-result {
    font-weight: 800;
    color: var(--accent-emerald);
    font-size: 1.05rem;
}

.case-card h3 {
    margin-bottom: 12px;
}

.case-card p {
    color: var(--gray);
    font-size: 0.96rem;
    font-style: italic;
    line-height: 1.6;
}

.case-author {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--gray-border);
}

.case-author img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-light);
}

.case-author strong {
    display: block;
    font-size: 0.95rem;
    color: var(--dark);
}

.case-author span {
    font-size: 0.85rem;
    color: var(--gray);
}

/* ===== TRUST SECTION ===== */
.trust {
    padding: 80px 0;
    background: var(--white);
}

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

.trust-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 40px 60px;
    margin: 36px 0 36px;
}

.trust-logos img {
    height: 38px;
    width: auto;
    opacity: 0.7;
    transition: var(--transition);
}

.trust-logos img:hover {
    opacity: 1;
    transform: scale(1.05);
}

.trust-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px 40px;
}

.trust-badges span {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--dark-light);
    background: var(--off-white);
    padding: 8px 20px;
    border-radius: 30px;
    border: 1px solid var(--gray-border);
}

/* ===== FAQ ACCORDION SECTION ===== */
.faq-section {
    padding: 80px 0;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--white);
    border: 1px solid var(--gray-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary);
}

.faq-button {
    width: 100%;
    padding: 20px 24px;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--dark);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-family: inherit;
}

.faq-icon {
    font-size: 1.4rem;
    transition: var(--transition);
    color: var(--primary);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease-out, padding 0.35s ease-out;
    padding: 0 24px;
    color: var(--gray);
    font-size: 0.98rem;
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    padding: 0 24px 20px 24px;
}

/* ===== CTA SECTION ===== */
.cta-section {
    padding: 80px 0;
}

.cta-box {
    background: linear-gradient(135deg, var(--dark) 0%, #1e1b4b 100%);
    padding: 64px 48px;
    border-radius: var(--radius-lg);
    text-align: center;
    color: var(--white);
    box-shadow: var(--shadow-hover);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.cta-box h2 {
    color: var(--white);
}

.cta-box p {
    color: rgba(255, 255, 255, 0.82);
    font-size: 1.15rem;
    max-width: 580px;
    margin: 16px auto 32px;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-box .btn-primary {
    background: var(--secondary);
    color: var(--dark);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.35);
}

.cta-box .btn-primary:hover {
    background: #d97706;
    color: var(--white);
    box-shadow: 0 12px 32px rgba(245, 158, 11, 0.45);
}

.cta-box .btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.3);
}

.cta-box .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: var(--white);
    color: var(--white);
}

.cta-guarantee {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-top: 32px;
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.75);
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: 80px 0;
    background: var(--white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-item .icon {
    font-size: 1.5rem;
    min-width: 40px;
    height: 40px;
    background: var(--primary-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-item strong {
    display: block;
    font-size: 0.88rem;
    color: var(--gray);
}

.contact-item a,
.contact-item span {
    font-size: 1.02rem;
    color: var(--dark);
    text-decoration: none;
    font-weight: 600;
}

.contact-item a:hover {
    color: var(--primary);
}

.social-links {
    display: flex;
    gap: 16px;
    margin-top: 12px;
}

.social-links a {
    font-size: 1.6rem;
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    transform: translateY(-3px) scale(1.1);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    background: var(--off-white);
    padding: 36px;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-border);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 700;
    font-size: 0.92rem;
    color: var(--dark-light);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 20px;
    border: 2px solid var(--gray-border);
    border-radius: 12px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
    width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(26, 76, 255, 0.1);
}

.form-group .error-message {
    color: #ef4444;
    font-size: 0.85rem;
    min-height: 18px;
    font-weight: 600;
}

.form-note {
    font-size: 0.85rem;
    color: var(--gray);
    text-align: center;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 70px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand p {
    margin: 16px 0 20px;
    max-width: 320px;
    font-size: 0.95rem;
    opacity: 0.8;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    font-size: 1.4rem;
    text-decoration: none;
    opacity: 0.7;
    transition: var(--transition);
}

.footer-social a:hover {
    opacity: 1;
    transform: translateY(-2px);
}

.footer-links h4 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.92rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
    padding-left: 4px;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    font-size: 0.88rem;
    opacity: 0.75;
}

/* ===== LIVE TOAST NOTIFICATION ===== */
.social-proof-toast {
    position: fixed;
    bottom: 24px;
    left: 24px;
    background: var(--white);
    border: 1px solid var(--gray-border);
    border-left: 4px solid var(--accent-emerald);
    padding: 14px 20px;
    border-radius: 14px;
    box-shadow: var(--shadow-hover);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 999;
    transform: translateY(120px);
    opacity: 0;
    transition: transform 0.4s ease, opacity 0.4s ease;
}

.social-proof-toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-icon {
    font-size: 1.4rem;
}

.toast-text strong {
    display: block;
    font-size: 0.9rem;
    color: var(--dark);
}

.toast-text span {
    font-size: 0.8rem;
    color: var(--gray);
}