/* ===================================
   Landing Page Styles - Mobile First
   Base styles target mobile (320px+)
   Breakpoints scale UP with min-width
   =================================== */

:root {
    --landing-max-width: 1200px;
}

/* ===================================
   BUTTONS (mobile base)
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition-fast);
    cursor: pointer;
    border: none;
    min-height: 44px; /* touch target */
    white-space: nowrap;
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-outline {
    background: transparent;
    color: var(--primary-light);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-large {
    padding: var(--space-md) var(--space-xl);
    font-size: 1.05rem;
    min-height: 52px;
}

/* ===================================
   NAVIGATION (mobile base)
   =================================== */
.landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-sm) var(--space-md);
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-normal);
}

.landing-nav.scrolled {
    background: rgba(15, 23, 42, 0.98);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: var(--landing-max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    z-index: 1;
}

.nav-logo i {
    color: var(--primary);
    font-size: 1.5rem;
}

/* Nav links — hidden on mobile, shown on desktop */
.nav-links {
    display: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.nav-links a:hover {
    color: var(--primary-light);
}

/* Auth buttons — hidden on mobile by default */
.nav-auth {
    display: none;
}

/* Mobile hamburger — visible on mobile */
.mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.4rem;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.mobile-menu-toggle:hover {
    background: rgba(255, 255, 255, 0.08);
}

/* Mobile dropdown menu */
.nav-mobile-menu {
    display: none;
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: var(--space-md);
    flex-direction: column;
    gap: var(--space-sm);
    box-shadow: var(--shadow-lg);
}

.nav-mobile-menu.open {
    display: flex;
}

.nav-mobile-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    min-height: 44px;
    display: flex;
    align-items: center;
}

.nav-mobile-menu a:hover {
    color: var(--primary-light);
    background: rgba(99, 102, 241, 0.1);
}

.nav-mobile-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.07);
    margin: var(--space-xs) 0;
}

.nav-mobile-menu .btn {
    width: 100%;
    justify-content: center;
}

/* ===================================
   HERO SECTION (mobile base)
   =================================== */
.hero-section {
    min-height: 100svh;
    display: flex;
    align-items: center;
    padding: 100px var(--space-md) var(--space-2xl);
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(129, 140, 248, 0.1) 0%, transparent 50%),
        var(--bg-dark);
    z-index: -1;
}

.hero-container {
    max-width: var(--landing-max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    align-items: center;
    width: 100%;
}

.hero-content {
    animation: fadeInUp 0.8s ease;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: rgba(99, 102, 241, 0.2);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-full);
    color: var(--primary-light);
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: var(--space-md);
}

.hero-badge i {
    font-size: 0.7rem;
}

.hero-title {
    font-size: clamp(2rem, 8vw, 4rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    align-items: stretch;
    max-width: 360px;
    margin: 0 auto;
}

.hero-cta .btn {
    width: 100%;
    justify-content: center;
}

.hero-stats {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    align-items: center;
}

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

.stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-light);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Hero visual — hidden on mobile, shown on larger screens */
.hero-visual {
    display: none;
}

.card-preview {
    position: relative;
    max-width: 320px;
    margin: 0 auto;
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: var(--transition-slow);
}

.card-preview:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.preview-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow:
        0 25px 50px rgba(0, 0, 0, 0.5),
        0 0 100px rgba(99, 102, 241, 0.2);
}

.preview-header {
    height: 100px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    position: relative;
}

.preview-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 4px solid var(--bg-card);
    background: var(--bg-surface);
    position: absolute;
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.preview-body {
    padding: 50px var(--space-lg) var(--space-lg);
    text-align: center;
}

.preview-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.preview-title {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.preview-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
}

.preview-action-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.preview-action-btn.primary {
    background: var(--primary);
    color: white;
}

.floating-elements {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.floating-icon {
    position: absolute;
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    animation: float 3s ease-in-out infinite;
}

.floating-icon:nth-child(1) { top: 10%; right: 10%; color: var(--whatsapp); animation-delay: 0s; }
.floating-icon:nth-child(2) { bottom: 20%; right: 5%; color: var(--linkedin); animation-delay: 0.5s; }
.floating-icon:nth-child(3) { top: 30%; left: 10%; color: var(--primary); animation-delay: 1s; }

/* ===================================
   SHARED SECTION STYLES (mobile base)
   =================================== */
.section-container {
    max-width: var(--landing-max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-title {
    font-size: clamp(1.6rem, 5vw, 2.75rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   FEATURES SECTION (mobile base)
   =================================== */
.features-section {
    padding: var(--space-2xl) 0;
    background: var(--bg-surface);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
}

.feature-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(99, 102, 241, 0.3);
}

.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: rgba(99, 102, 241, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    color: var(--primary-light);
    margin-bottom: var(--space-md);
}

.feature-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.feature-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.65;
}

/* ===================================
   HOW IT WORKS (mobile base)
   =================================== */
.how-it-works-section {
    padding: var(--space-2xl) 0;
}

.steps-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.step-card {
    text-align: center;
    position: relative;
}

.step-number {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    font-weight: 700;
    color: white;
    margin: 0 auto var(--space-md);
}

.step-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.step-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.65;
    max-width: 280px;
    margin: 0 auto;
}

/* ===================================
   PRICING SECTION (mobile base)
   =================================== */
.pricing-section {
    padding: var(--space-2xl) 0;
    background: var(--bg-surface);
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-xl) var(--space-lg);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-normal);
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
    /* No scale transform on mobile — looks odd in single column */
}

.pricing-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--primary);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-md);
}

.pricing-name {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.pricing-price {
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--primary-light);
    line-height: 1.1;
    margin-bottom: var(--space-sm);
}

.pricing-price span {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 400;
}

.pricing-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    font-size: 0.9rem;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: var(--space-xl);
}

.pricing-features li {
    padding: var(--space-sm) 0;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

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

.pricing-features li i {
    color: var(--success);
    flex-shrink: 0;
}

.pricing-card .btn {
    width: 100%;
}

/* ===================================
   CTA SECTION (mobile base)
   =================================== */
.cta-section {
    padding: var(--space-2xl) 0;
    text-align: center;
}

.cta-box {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(129, 140, 248, 0.1) 100%);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.cta-title {
    font-size: clamp(1.5rem, 5vw, 2rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.cta-subtitle {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    font-size: 0.95rem;
    line-height: 1.7;
}

.cta-section .btn {
    width: 100%;
    max-width: 320px;
}

/* ===================================
   FOOTER (mobile base)
   =================================== */
.landing-footer {
    padding: var(--space-2xl) 0 var(--space-lg);
    background: var(--bg-card);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-container {
    max-width: var(--landing-max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
    text-align: center;
}

.footer-brand {
    max-width: none;
}

.footer-brand .nav-logo {
    margin-bottom: var(--space-md);
    justify-content: center;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.65;
}

.footer-title {
    font-weight: 600;
    margin-bottom: var(--space-md);
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    align-items: center;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-fast);
    padding: var(--space-xs) 0;
    min-height: 36px;
    display: flex;
    align-items: center;
}

.footer-links a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-social {
    display: flex;
    gap: var(--space-lg);
}

.footer-social a {
    color: var(--text-secondary);
    font-size: 1.25rem;
    transition: var(--transition-fast);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-social a:hover {
    color: var(--primary-light);
}

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

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(30px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-10px); }
}

/* ===================================
   BREAKPOINT: sm — 480px+
   =================================== */
@media (min-width: 480px) {
    .hero-section {
        padding: 110px var(--space-lg) var(--space-2xl);
    }

    .hero-stats {
        flex-direction: row;
        justify-content: center;
        gap: var(--space-xl);
    }

    .hero-cta {
        flex-direction: row;
        max-width: none;
        justify-content: center;
    }

    .hero-cta .btn {
        width: auto;
    }

    .cta-section .btn {
        width: auto;
    }
}

/* ===================================
   BREAKPOINT: md — 768px+
   =================================== */
@media (min-width: 768px) {
    /* Nav: show desktop links, hide hamburger */
    .mobile-menu-toggle {
        display: none;
    }

    .nav-mobile-menu {
        display: none !important; /* always hide on desktop */
    }

    .nav-links {
        display: flex;
        align-items: center;
        gap: var(--space-lg);
    }

    .nav-auth {
        display: flex;
        align-items: center;
        gap: var(--space-md);
    }

    .landing-nav {
        padding: var(--space-md) var(--space-lg);
    }

    /* Hero */
    .hero-content {
        text-align: left;
    }

    .hero-badge {
        font-size: 0.875rem;
    }

    .hero-subtitle {
        margin-left: 0;
        margin-right: 0;
        font-size: 1.15rem;
    }

    .hero-cta {
        justify-content: flex-start;
    }

    .hero-stats {
        justify-content: flex-start;
    }

    .stat-item {
        text-align: left;
    }

    /* Features grid: 2 columns */
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-lg);
    }

    /* Steps: 3 columns */
    .steps-container {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Pricing: 2 columns */
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-lg);
    }

    .pricing-card.featured {
        transform: scale(1.04);
    }

    /* Footer: 2 columns */
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        text-align: left;
    }

    .footer-brand .nav-logo {
        justify-content: flex-start;
    }

    .footer-links {
        align-items: flex-start;
    }

    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }

    /* CTA */
    .cta-box {
        padding: var(--space-2xl);
    }

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

/* ===================================
   BREAKPOINT: lg — 992px+
   =================================== */
@media (min-width: 992px) {
    /* Hero: two-column layout */
    .hero-container {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-2xl);
    }

    .hero-visual {
        display: block;
        position: relative;
        animation: fadeInRight 0.8s ease 0.2s both;
    }

    .hero-section {
        padding: 120px var(--space-lg) var(--space-2xl);
    }

    /* Features: 3 columns */
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Footer: 4 columns */
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }

    .footer-brand {
        max-width: 300px;
    }
}

/* ===================================
   BREAKPOINT: xl — 1200px+
   =================================== */
@media (min-width: 1200px) {
    .hero-title {
        font-size: 4rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }
}