/* Landing Page Styles - Refactored with Design Tokens */

/* Landing Layout */
.landing-layout {
    background-color: var(--color-white);
    min-height: 100vh;
}

/* Landing Header */
.landing-header {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-2) 0;
    position: sticky;
    top: 0;
    z-index: 50;
}

.landing-header__container {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.landing-header__logo a {
    font-size: 28px;
    font-weight: 900;
    color: var(--color-text-primary);
    text-decoration: none;
    text-transform: uppercase;
}

.landing-header__nav {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.landing-header__nav>a:not(.btn) {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: var(--font-medium);
    font-size: var(--text-sm);
    transition: color 150ms ease;
}

.landing-header__nav>a:not(.btn):hover {
    color: var(--color-text-primary);
}

/* Landing Section */
.landing-section {
    padding: var(--space-16) 0;
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-white);
    scroll-margin-top: 80px;
}

.landing-section:last-child {
    border-bottom: none;
}

.landing-section__container {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--space-8);
}

.landing-section__title {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-6);
    text-align: center;
    line-height: var(--leading-tight);
}

.landing-section__description {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    max-width: var(--max-width-text);
    margin: 0 auto var(--space-12);
    text-align: center;
}

/* Landing Grid */
.landing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

/* Hero Section */
.hero {
    background-color: var(--color-white);
    background-image: url('../images/hero-bg.jpg');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    padding: var(--space-24) var(--space-8) var(--space-20);
    text-align: center;
    border-bottom: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

/* .hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -10%;
    width: 120%;
    height: 150%;
    background: radial-gradient(circle at top center, rgba(37, 99, 235, 0.04) 0%, transparent 70%);
    z-index: 0;
    pointer-events: none;
} */

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 2.7rem;
    font-weight: 800;
    /* Extra bold for impact */
    color: var(--color-text-primary);
    margin-bottom: var(--space-6);
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 1.25rem;
    /* ~20px */
    color: var(--color-text-secondary);
    margin-bottom: var(--space-10);
    line-height: var(--leading-relaxed);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
}

/* Features Section */
.features {
    padding: var(--space-20) var(--space-8);
    background-color: var(--color-white);
}

.features .landing-section__container {
    scroll-margin-top: 80px;
}

#features {
    scroll-margin-top: 80px;
}

#pricing {
    scroll-margin-top: 80px;
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    text-align: center;
    margin-bottom: var(--space-6);
    color: var(--color-text-primary);
    line-height: var(--leading-tight);
}

.section-subtitle {
    text-align: center;
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-12);
    line-height: var(--leading-relaxed);
}

/* Features List — modern accent-line layout */
.features-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    max-width: 900px;
    margin: 0 auto;
}

.feature-row {
    display: flex;
    align-items: flex-start;
    gap: var(--space-5);
    padding: var(--space-8) var(--space-6);
    border-bottom: 1px solid var(--color-border);
    transition: background-color 200ms ease;
    position: relative;
}

/* Vertical divider between columns */
.feature-row:nth-child(odd) {
    border-right: 1px solid var(--color-border);
}

/* Remove bottom border from last row */
.feature-row:nth-last-child(-n+2) {
    border-bottom: none;
}

/* Left accent on hover */
.feature-row::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: linear-gradient(180deg, var(--color-primary), #6366f1);
    border-radius: 2px;
    transition: height 250ms ease;
}

.feature-row:hover {
    background-color: var(--color-bg-secondary);
}

.feature-row:hover::before {
    height: 60%;
}

.feature-row__icon {
    flex-shrink: 0;
    margin-top: 2px;
}

.feature-row__icon img {
    width: 64px;
    height: 64px;
    display: block;
    object-fit: contain;
}

.feature-row__content h3 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
    line-height: var(--leading-tight);
}

.feature-row__content p {
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
    font-size: var(--text-sm);
    margin: 0;
}

/* Demo Section */
.demo {
    padding: var(--space-16) var(--space-8);
    background-color: var(--color-white);
}

.demo-charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-8);
    max-width: var(--max-width-content);
    margin: 0 auto var(--space-10);
}

.demo-chart-container {
    background-color: var(--color-white);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.demo-chart-container h3 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-6);
    color: var(--color-text-primary);
}

.chart-wrapper {
    position: relative;
    height: 300px;
}

.demo-note {
    text-align: center;
    padding: var(--space-5);
    background-color: var(--color-warning-light);
    border: 1px solid var(--color-warning);
    border-radius: var(--radius-lg);
    max-width: 600px;
    margin: 0 auto;
}

.demo-note p {
    margin: 0;
    color: var(--color-text-primary);
    font-weight: var(--font-medium);
    font-size: var(--text-base);
}

/* About Section Title */
.about-title {
    color: var(--color-text-primary);
    font-size: var(--text-4xl);
    line-height: 1.2;
}

/* About Info Section */
.about-info {
    padding: var(--space-16) var(--space-8);
    background-color: var(--color-bg-secondary);
}

.about-info-content {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.about-info-item {
    padding: var(--space-6) var(--space-8);
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    transition: transform 200ms ease, box-shadow 200ms ease;
}

.about-info-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.about-info-item p {
    color: var(--color-text-secondary);
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    margin: 0;
}

.about-info-item strong {
    color: var(--color-text-primary);
    font-weight: var(--font-bold);
}

/* Pricing Section */
.pricing {
    padding: var(--space-16) var(--space-8);
    background-color: var(--color-white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
    max-width: var(--max-width-content);
    margin: 0 auto;
}

.pricing-card {
    background-color: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-10) var(--space-8);
    position: relative;
    transition: transform 150ms ease, box-shadow 150ms ease;
}

.pricing-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.pricing-card.popular {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.pricing-card.premium {
    border-color: var(--color-primary);
}

.badge {
    position: absolute;
    top: calc(-1 * var(--space-4));
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
}

.plan-name {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
    text-align: center;
}

.plan-price {
    text-align: center;
    margin-bottom: var(--space-3);
}

.price {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
}

.period {
    display: block;
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    margin-top: var(--space-2);
}

.plan-savings {
    text-align: center;
    color: var(--color-growth);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-5);
    font-size: var(--text-base);
}

.plan-features {
    list-style: none;
    padding: 0;
    margin: var(--space-8) 0;
}

.plan-features li {
    padding: var(--space-3) 0;
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    font-size: var(--text-base);
}

.feature-included .icon {
    color: var(--color-growth);
    font-weight: var(--font-bold);
}

.feature-excluded {
    color: var(--color-text-tertiary);
}

.feature-excluded .icon {
    color: var(--color-text-tertiary);
}

/* Registration Section */
.registration {
    padding: var(--space-16) var(--space-8);
    background-color: var(--color-white);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.registration-content {
    max-width: 700px;
    margin: 0 auto;
}

.registration-content h2 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-6);
    color: var(--color-text-primary);
    line-height: var(--leading-tight);
}

.registration-content p {
    font-size: var(--text-xl);
    margin-bottom: var(--space-8);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

/* Footer */
.footer {
    background-color: var(--color-text-primary);
    color: var(--color-white);
    padding: var(--space-16) var(--space-8) var(--space-8);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-10);
    max-width: var(--max-width-content);
    margin: 0 auto var(--space-10);
}

.footer-section h4 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-5);
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li {
    margin-bottom: var(--space-3);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 150ms ease;
    font-size: var(--text-base);
}

.footer-section a:hover {
    color: var(--color-white);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    max-width: var(--max-width-content);
    margin: 0 auto;
}

.footer-bottom p {
    margin: var(--space-3) 0;
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-base);
}

.disclaimer {
    font-size: var(--text-sm);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-lg);
    font-weight: var(--font-medium);
    font-size: var(--text-base);
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
    cursor: pointer;
    font-family: inherit;
    line-height: var(--leading-tight);
}

.btn-primary,
a.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-white) !important;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    border: none;
}

.btn-primary:hover,
a.btn-primary:hover,
.btn-primary:focus,
a.btn-primary:focus {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
    color: var(--color-white) !important;
}

.btn-primary:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn-large {
    padding: var(--space-4) var(--space-10);
    font-size: 1.125rem;
    /* 18px */
    border-radius: var(--radius-xl);
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background-color: var(--color-hover);
    border-color: var(--color-text-tertiary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Container */
.container {
    max-width: var(--max-width-content);
    margin: 0 auto;
    padding: 0 var(--space-8);
}

/* Responsive Design */
@media (max-width: 768px) {
    .landing-header__nav {
        gap: var(--space-3);
    }

    .landing-header__nav>a:not(.btn) {
        display: none;
    }

    .landing-section {
        padding: var(--space-12) 0;
    }

    .landing-section__title {
        font-size: var(--text-3xl);
    }

    .landing-section__container {
        padding: 0 var(--space-4);
    }

    .hero {
        padding: var(--space-16) var(--space-4);
    }

    .hero-title {
        font-size: var(--text-3xl);
    }

    .hero-subtitle {
        font-size: var(--text-base);
    }

    .section-title {
        font-size: var(--text-3xl);
    }

    .features-list {
        grid-template-columns: 1fr;
    }

    .feature-row:nth-child(odd) {
        border-right: none;
    }

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

    .demo-charts {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn-large {
        width: 100%;
    }

    .container {
        padding: 0 var(--space-4);
    }

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

@media (max-width: 640px) {
    .landing-section {
        padding: var(--space-10) 0;
    }

    .hero {
        padding: var(--space-12) var(--space-4);
    }

    .hero-title {
        font-size: var(--text-2xl);
    }

    .section-title {
        font-size: var(--text-2xl);
    }

    .landing-section__title {
        font-size: var(--text-2xl);
    }
}