/* ═══════════════════════════════════════════════════════
   Landing Page Styles — Menu-Carta SaaS
   ═══════════════════════════════════════════════════════ */

:root {
    --c-primary: #4f46e5; /* Indigo / Electric Blue */
    --c-primary-dark: #4338ca;
    --c-accent: #f59e0b; /* Amber / Gold */
    --c-accent-dark: #d97706;
    --c-dark: #0f172a; /* Slate 900 */
    --c-dark-2: #1e293b;
    --c-text: #334155;
    --c-text-light: #64748b;
    --c-text-muted: #94a3b8;
    --c-bg: #ffffff;
    --c-bg-alt: #f1f5f9;
    --c-border: #e2e8f0;
    --radius: 0.75rem;
    --radius-lg: 1.25rem;
    --shadow: 0 0.25rem 1.25rem rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 1.25rem 3.75rem rgba(0, 0, 0, 0.12);
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 75rem;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ═══ NAVBAR ═══ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

body.menu-open {
    overflow: hidden;
}

.nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(1.25rem);
    box-shadow: 0 0.125rem 1.25rem rgba(0, 0, 0, 0.08);
    padding: 0.625rem 0;
}

body.menu-open .nav.scrolled {
    backdrop-filter: none;
    background: transparent;
    box-shadow: none;
}

.nav__inner {
    max-width: 75rem;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
    text-decoration: none;
}

.nav__logo span {
    color: var(--c-primary);
}

.nav.scrolled .nav__logo {
    color: var(--c-dark);
}

body.menu-open .nav__logo {
    color: #fff !important;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}

.nav__links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav__links a:hover {
    color: #fff;
}

.nav.scrolled .nav__links a {
    color: var(--c-text-light);
}

.nav.scrolled .nav__links a:hover {
    color: var(--c-dark);
}

.nav__link--login {
    font-weight: 600 !important;
}

.btn-nav {
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark)) !important;
    color: #fff !important;
    padding: 0.625rem 1.5rem !important;
    border-radius: 0.625rem !important;
    font-weight: 600 !important;
    transition: all 0.2s !important;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25) !important;
}

.btn-nav:hover {
    background: var(--c-primary-dark) !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4) !important;
}

.nav__toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 0.3125rem;
    padding: 0.3125rem;
}

.nav__toggle span {
    display: block;
    width: 1.5rem;
    height: 0.125rem;
    background: #fff;
    transition: all 0.3s;
}

.nav.scrolled .nav__toggle span {
    background: var(--c-dark);
}

/* ═══ HERO ═══ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, rgba(255, 107, 53, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 20% 80%, rgba(79, 70, 229, 0.1) 0%, transparent 50%);
}

.hero__content {
    position: relative;
    z-index: 1;
    max-width: 43.75rem;
    padding: 7.5rem 1.5rem 5rem;
    margin: 0 auto;
    text-align: center;
}

.hero__badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.05);
    color: var(--c-accent);
    padding: 0.5rem 1.25rem;
    border-radius: 3.125rem;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(245, 158, 11, 0.3);
    backdrop-filter: blur(4px);
}

.hero__title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 900;
    color: #fff;
    line-height: 1.15;
    margin-bottom: 1.25rem;
}

.hero__title span {
    color: var(--c-accent);
}

.hero__subtitle {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.7);
    max-width: 34.375rem;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.hero__actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    border-radius: 0.75rem;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-0.125rem);
    box-shadow: 0 0.75rem 2.1875rem rgba(79, 70, 229, 0.35);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    border: 0.125rem solid rgba(255, 255, 255, 0.3);
    border-radius: 0.75rem;
    transition: all 0.3s;
}

.btn-ghost:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.hero__stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero__stat {
    text-align: center;
}

.hero__stat strong {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: #fff;
}

.hero__stat span {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 500;
}

/* ═══ SECTION HEADER ═══ */
.section-header {
    text-align: center;
    margin-bottom: 3.125rem;
}

.section-badge {
    display: inline-block;
    background: rgba(255, 107, 53, 0.08);
    color: var(--c-primary);
    padding: 0.375rem 1.125rem;
    border-radius: 3.125rem;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03125rem;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    color: var(--c-dark);
    margin-bottom: 0.75rem;
}

.section-header p {
    font-size: 1.05rem;
    color: var(--c-text-light);
    max-width: 34.375rem;
    margin: 0 auto;
}

/* ═══ FEATURES ═══ */
.features {
    padding: 6.25rem 0;
    background: var(--c-bg-alt);
}

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

.feature-card {
    background: #fff;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: all 0.4s;
    border: 1px solid transparent;
    opacity: 0;
    transform: translateY(1.25rem);
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    transform: translateY(-0.25rem);
    box-shadow: var(--shadow-lg);
    border-color: rgba(255, 107, 53, 0.15);
}

.feature-card__icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--c-dark);
    margin-bottom: 0.625rem;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--c-text-light);
    line-height: 1.65;
}

/* ═══ HOW IT WORKS ═══ */
.how-it-works {
    padding: 6.25rem 0;
}

.steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.step {
    text-align: center;
    max-width: 15.625rem;
    opacity: 0;
    transform: translateY(1.25rem);
}

.step.visible {
    opacity: 1;
    transform: translateY(0);
}

.step__number {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
    color: #fff;
    font-size: 1.5rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    box-shadow: 0 0.5rem 1.5625rem rgba(255, 107, 53, 0.25);
}

.step h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--c-dark);
    margin-bottom: 0.5rem;
}

.step p {
    font-size: 0.88rem;
    color: var(--c-text-light);
}

.step__arrow {
    font-size: 1.5rem;
    color: var(--c-border);
    font-weight: 300;
}

/* ═══ PRICING ═══ */
.pricing {
    padding: 6.25rem 0;
    background: var(--c-bg-alt);
}

.pricing__toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.pricing__label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--c-text-muted);
    transition: color 0.2s;
}

.pricing__label.active,
.pricing__label:first-of-type {
    color: var(--c-dark);
}

.pricing__discount {
    background: #fef3c7;
    color: #92400e;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 3.125rem;
    border: 1px solid #fde68a;
}

/* Toggle switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 3.25rem;
    height: 1.75rem;
    cursor: pointer;
}

.toggle-switch input {
    display: none;
}

.toggle-slider {
    position: absolute;
    inset: 0;
    background: #ddd;
    border-radius: 1.75rem;
    transition: 0.3s;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 1.375rem;
    height: 1.375rem;
    left: 0.1875rem;
    bottom: 0.1875rem;
    background: #fff;
    border-radius: 50%;
    transition: 0.3s;
    box-shadow: 0 0.125rem 0.3125rem rgba(0, 0, 0, 0.15);
}

.toggle-switch input:checked+.toggle-slider {
    background: var(--c-primary);
}

.toggle-switch input:checked+.toggle-slider::before {
    transform: translateX(1.5rem);
}

.pricing__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    align-items: start;
}

.plan-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 2.25rem 1.75rem;
    box-shadow: var(--shadow);
    position: relative;
    border: 2px solid transparent;
    transition: all 0.4s;
    text-align: center;
    opacity: 0;
    transform: translateY(1.25rem);
}

.plan-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.plan-card:hover {
    transform: translateY(-0.25rem);
    box-shadow: var(--shadow-lg);
}

.plan-card--featured {
    border-color: var(--c-primary);
    transform: scale(1.05);
    box-shadow: 0 1.25rem 3.75rem rgba(255, 107, 53, 0.15);
}

.plan-card--featured.visible {
    transform: scale(1.05);
}

.plan-card--featured:hover {
    transform: scale(1.07);
}

.plan-card__badge {
    position: absolute;
    top: -0.875rem;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
    color: #fff;
    padding: 0.375rem 1.25rem;
    border-radius: 3.125rem;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 1px;
    white-space: nowrap;
}

.plan-card__name {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--c-text-muted);
    letter-spacing: 0.09375rem;
    margin-bottom: 1rem;
}

.plan-card__price {
    margin-bottom: 1.75rem;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.125rem;
}

.plan-card__currency {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--c-primary);
}

.plan-card__amount {
    font-size: 3rem;
    font-weight: 900;
    color: var(--c-dark);
    line-height: 1;
}

.plan-card__period {
    font-size: 0.9rem;
    color: var(--c-text-muted);
    font-weight: 500;
}

.plan-card__features {
    list-style: none;
    margin-bottom: 1.75rem;
    text-align: left;
}

.plan-card__features li {
    padding: 0.5rem 0;
    font-size: 0.88rem;
    color: var(--c-text);
    display: flex;
    align-items: center;
    gap: 0.625rem;
    border-bottom: 0.0625rem solid #f5f5f5;
}

.plan-card__features li:last-child {
    border-bottom: none;
}

.plan-card__features li.disabled {
    color: var(--c-text-muted);
}

.check {
    color: var(--c-primary);
    font-weight: 700;
    font-size: 1rem;
}

.cross {
    color: #dc2626;
    font-size: 0.9rem;
}

.btn-plan {
    display: block;
    width: 100%;
    padding: 0.875rem;
    border-radius: 0.625rem;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    border: 0.125rem solid var(--c-border);
    color: var(--c-dark);
    transition: all 0.3s;
    text-align: center;
}

.btn-plan:hover {
    border-color: var(--c-primary);
    color: var(--c-primary);
}

.btn-plan--primary {
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
    color: #fff;
    border-color: transparent;
}

.btn-plan--primary:hover {
    transform: translateY(-0.125rem);
    box-shadow: 0 0.5rem 1.5625rem rgba(255, 107, 53, 0.3);
    color: #fff;
}

/* ═══ COMPARISON TABLE ═══ */
.comparison {
    padding: 3.75rem 0 6.25rem;
}

.comparison__table-wrapper {
    overflow-x: auto;
}

.comparison__table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.comparison__table th {
    padding: 0.875rem 1.25rem;
    background: var(--c-dark);
    color: #fff;
    font-weight: 700;
    text-align: center;
}

.comparison__table th:first-child {
    text-align: left;
    border-radius: 0.625rem 0 0 0;
}

.comparison__table th:last-child {
    border-radius: 0 0.625rem 0 0;
}

.comparison__table td {
    padding: 0.875rem 1.25rem;
    text-align: center;
    border-bottom: 0.0625rem solid #f0f0f0;
}

.comparison__table td:first-child {
    text-align: left;
    font-weight: 600;
    color: var(--c-dark);
}

.comparison__table tr:hover td {
    background: #fafafa;
}

.tbl-check {
    color: var(--c-primary);
    font-weight: 700;
    font-size: 1.1rem;
}

.tbl-cross {
    color: #ddd;
    font-size: 1.1rem;
}

/* ═══ TESTIMONIALS ═══ */
.testimonials {
    padding: 6.25rem 0;
    background: var(--c-bg-alt);
}

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

.testimonial-card {
    background: #fff;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: all 0.4s;
    opacity: 0;
    transform: translateY(1.25rem);
}

.testimonial-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.testimonial-card:hover {
    transform: translateY(-0.1875rem);
    box-shadow: var(--shadow-lg);
}

.testimonial-card__stars {
    margin-bottom: 0.875rem;
    font-size: 0.9rem;
}

.testimonial-card p {
    font-size: 0.92rem;
    color: var(--c-text-light);
    line-height: 1.7;
    margin-bottom: 1.25rem;
    font-style: italic;
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.testimonial-card__avatar {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

.testimonial-card__author strong {
    display: block;
    font-size: 0.9rem;
    color: var(--c-dark);
}

.testimonial-card__author span {
    font-size: 0.78rem;
    color: var(--c-text-muted);
}

.faq {
    padding: 6.25rem 0;
}

.faq__grid {
    max-width: 50rem;
    margin: 0 auto;
}

.faq-item {
    border: 0.0625rem solid var(--c-border);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    overflow: hidden;
    transition: all 0.3s;
    opacity: 0;
    transform: translateY(0.625rem);
}

.faq-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.faq-item:hover {
    border-color: rgba(255, 107, 53, 0.3);
}

.faq-item__question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.125rem 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--c-dark);
    text-align: left;
    font-family: inherit;
}

.faq-icon {
    font-size: 1.3rem;
    color: var(--c-primary);
    transition: transform 0.3s;
    font-weight: 300;
}

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

.faq-item__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s, padding 0.3s;
}

.faq-item.open .faq-item__answer {
    max-height: 12.5rem;
    padding: 0 1.5rem 1.125rem;
}

.faq-item__answer p {
    font-size: 0.9rem;
    color: var(--c-text-light);
    line-height: 1.65;
}

/* ═══ CTA ═══ */
.cta-section {
    padding: 5rem 0;
}

.cta-box {
    background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
    border-radius: var(--radius-lg);
    padding: 3.75rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 25rem;
    height: 25rem;
    border-radius: 50%;
    background: rgba(255, 107, 53, 0.1);
}

.cta-box h2 {
    font-size: 2rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 0.75rem;
    position: relative;
}

.cta-box p {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 2rem;
    max-width: 31.25rem;
    margin-left: auto;
    margin-right: auto;
    position: relative;
}

.cta-box__actions {
    position: relative;
}

/* ═══ FOOTER ═══ */
.footer {
    background: var(--c-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 3.75rem 0 1.875rem;
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}

.footer__brand h3 {
    color: #fff;
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
}

.footer__brand p {
    font-size: 0.88rem;
    line-height: 1.6;
    max-width: 17.5rem;
}

.footer__links h4 {
    color: #fff;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.03125rem;
}

.footer__links a {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.88rem;
    margin-bottom: 0.625rem;
    transition: color 0.2s;
}

.footer__links a:hover {
    color: var(--c-primary);
}

.footer__bottom {
    border-top: 0.0625rem solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    text-align: center;
    font-size: 0.8rem;
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 968px) {
    .features__grid {
        grid-template-columns: 1fr 1fr;
    }

    .pricing__grid {
        grid-template-columns: 1fr;
        max-width: 26.25rem;
        margin: 0 auto;
    }

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

    .plan-card--featured.visible {
        transform: none;
    }

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

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

    .steps {
        flex-direction: column;
    }

    .step__arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    .nav__links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        height: 100vh;
        height: 100dvh;
        background: #1a1a2e; /* Solid background for reliability */
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 1.5rem;
        z-index: 1000; /* Higher than navbar and everything else */
        overflow-y: auto;
        padding: 2rem;
    }

    .nav__links.active {
        display: flex;
    }

    .nav__links a {
        color: #fff !important;
        font-size: 1.4rem;
        font-weight: 700;
    }

    .nav__toggle {
        display: flex;
        z-index: 1100; /* Above nav__links */
        position: relative;
    }

    .nav__toggle.active span {
        background: #fff !important;
    }

    .nav__toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(0.3125rem, 0.3125rem);
    }

    .nav__toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav__toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(0.3125rem, -0.3125rem);
    }

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

    .hero__stats {
        gap: 1.5rem;
    }

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

    .cta-box {
        padding: 2.5rem 1.5rem;
    }

    .comparison__table {
        font-size: 0.8rem;
    }
}