/* ==========================================
   RESET E CONFIGURAÇÃO BASE
   ========================================== */

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

html {
    scroll-behavior: smooth;
}

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

/* ==========================================
   VARIÁVEIS CSS (DESIGN TOKENS)
   ========================================== */

:root {
    /* Cores Principais */
    --primary: hsl(240, 60%, 60%);
    --primary-dark: hsl(240, 60%, 50%);
    --primary-light: hsl(240, 60%, 70%);

    --secondary: hsl(160, 50%, 55%);
    --secondary-dark: hsl(160, 50%, 45%);
    --secondary-light: hsl(160, 50%, 65%);

    --accent: hsl(280, 70%, 65%);
    --accent-dark: hsl(280, 70%, 55%);

    /* Cores de Texto */
    --text-primary: hsl(240, 10%, 20%);
    --text-secondary: hsl(240, 5%, 45%);
    --text-light: hsl(240, 5%, 60%);
    --text-white: hsl(0, 0%, 100%);

    /* Backgrounds */
    --bg-gradient: linear-gradient(135deg,
            hsl(240, 30%, 97%) 0%,
            hsl(260, 40%, 95%) 50%,
            hsl(280, 35%, 96%) 100%);
    --bg-white: hsl(0, 0%, 100%);
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-card: rgba(255, 255, 255, 0.9);

    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary) 0%, hsl(180, 50%, 55%) 100%);
    --gradient-text: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);

    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);

    /* Espaçamento */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Bordas */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Tipografia */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Tamanhos de fonte */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    /* Transições */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
}

/* ==========================================
   UTILITÁRIOS GLOBAIS
   ========================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================
   HEADER E NAVEGAÇÃO
   ========================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: var(--text-xl);
    color: var(--text-primary);
}

.logo-icon {
    font-size: var(--text-3xl);
}

.nav__menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    flex: 1;
    justify-content: center;
}

.nav__link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--text-sm);
    transition: var(--transition);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.nav__link:hover {
    color: var(--primary);
}

.nav__link:hover::after {
    width: 100%;
}

/* ==========================================
   BOTÕES
   ========================================== */

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: var(--text-base);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-white);
    box-shadow: var(--shadow-md);
}

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

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

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

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--text-lg);
}

.nav__cta {
    white-space: nowrap;
}

.nav__hamburger {
    display: none;
}

/* ==========================================
   HERO SECTION
   ========================================== */

.hero {
    padding: calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl);
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero__title {
    font-family: var(--font-heading);
    font-size: var(--text-5xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.hero__description {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.hero__buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.hero__stats {
    display: flex;
    gap: var(--spacing-xl);
}

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

.stat-number {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: 700;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.hero__image {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero__illustration {
    width: 500px;
    height: 500px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    position: relative;
    animation: float 6s ease-in-out infinite;
    box-shadow: var(--shadow-xl);
}

.hero__illustration::before {
    content: '🌱';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 120px;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

/* ==========================================
   SEÇÕES GENÉRICAS
   ========================================== */

.about,
.resources,
.tools {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-family: var(--font-heading);
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

/* ==========================================
   SOBRE
   ========================================== */

.about__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.about__paragraph {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.about__paragraph strong {
    color: var(--primary);
    font-weight: 600;
}

.about__features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: var(--text-4xl);
    margin-bottom: var(--spacing-sm);
}

.feature-title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.feature-description {
    color: var(--text-secondary);
    font-size: var(--text-base);
}

/* ==========================================
   ESTATÍSTICAS
   ========================================== */

.statistics {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg,
            rgba(99, 102, 241, 0.05) 0%,
            rgba(168, 85, 247, 0.05) 100%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.stat-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-card__number {
    font-family: var(--font-heading);
    font-size: var(--text-4xl);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.stat-card__label {
    font-size: var(--text-base);
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.stat-card__source {
    font-size: var(--text-sm);
    color: var(--text-light);
}

/* ==========================================
   RECURSOS
   ========================================== */

.resources__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.resource-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.resource-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.resource-card__icon {
    font-size: var(--text-5xl);
    margin-bottom: var(--spacing-md);
}

.resource-card__title {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.resource-card__description {
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.resource-card__list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.resource-card__list li {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    padding-left: var(--spacing-md);
    position: relative;
}

.resource-card__list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: 700;
}

/* ==========================================
   FERRAMENTAS
   ========================================== */

.tools__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.tool-preview {
    position: relative;
}

.tool-preview__image {
    width: 100%;
    height: 500px;
    background: var(--gradient-secondary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    position: relative;
}

.tool-preview__image::before {
    content: '⏱️';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 100px;
}

.tool-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.tool-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.tool-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.tool-item__icon {
    font-size: var(--text-3xl);
    flex-shrink: 0;
}

.tool-item__title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.tool-item__description {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==========================================
   CALL TO ACTION
   ========================================== */

.cta {
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-primary);
}

.cta__content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta__title {
    font-family: var(--font-heading);
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
}

.cta__description {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

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

.cta .btn-primary:hover {
    transform: translateY(-4px) scale(1.05);
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
    background: linear-gradient(135deg,
            hsl(240, 20%, 15%) 0%,
            hsl(260, 25%, 12%) 100%);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer__content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: var(--text-xl);
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
}

.footer__description {
    font-size: var(--text-base);
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.7);
}

.footer__title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
}

.footer__links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: var(--transition);
}

.footer__links a:hover {
    color: var(--text-white);
    padding-left: var(--spacing-xs);
}

.footer__bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__bottom p {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--spacing-xs);
}

.footer__credits {
    color: rgba(255, 255, 255, 0.5);
}

/* ==========================================
   RESPONSIVIDADE
   ========================================== */

@media (max-width: 968px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--bg-glass);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
        z-index: 999;
    }

    .nav__menu--active {
        right: 0;
    }

    .nav__hamburger {
        display: block;
        cursor: pointer;
        background: transparent;
        border: none;
        z-index: 1001;
    }

    .nav__hamburger span {
        display: block;
        width: 25px;
        height: 3px;
        background: var(--text-primary);
        margin: 5px 0;
        transition: var(--transition);
        border-radius: 2px;
    }

    .nav__hamburger--active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

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

    .nav__hamburger--active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero__illustration {
        width: 400px;
        height: 400px;
    }

    .hero__buttons {
        justify-content: center;
    }

    .hero__stats {
        justify-content: center;
    }

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

@media (max-width: 640px) {
    :root {
        --text-4xl: 1.875rem;
        --text-5xl: 2.25rem;
    }

    .hero {
        padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl);
    }

    .hero__illustration {
        width: 300px;
        height: 300px;
    }

    .hero__illustration::before {
        font-size: 80px;
    }

    .hero__buttons {
        flex-direction: column;
    }

    .hero__stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

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

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

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

    .btn-large {
        width: 100%;
    }
}