/* Reset e configurações básicas */
/* Esconde o botão de baixar desktop em mobile */
.download-desktop-btn {
    display: none;
}
@media (min-width: 901px) {
    .download-desktop-btn {
        display: inline-block !important;
    }
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Força texto preto no modo claro */
:root:not([data-theme="dark"]) * {
    color: #000000 !important;
}

/* Força títulos e textos específicos pretos no modo claro */
:root:not([data-theme="dark"]) h1,
:root:not([data-theme="dark"]) h2,
:root:not([data-theme="dark"]) h3,
:root:not([data-theme="dark"]) h4,
:root:not([data-theme="dark"]) h5,
:root:not([data-theme="dark"]) h6,
:root:not([data-theme="dark"]) p,
:root:not([data-theme="dark"]) span:not(.badge):not(.premium-badge):not(.premium-badge-small),
:root:not([data-theme="dark"]) div,
:root:not([data-theme="dark"]) li,
:root:not([data-theme="dark"]) label,
:root:not([data-theme="dark"]) strong,
:root:not([data-theme="dark"]) em,
:root:not([data-theme="dark"]) a:not(nav a):not(.btn) {
    color: #000000 !important;
}

/* Exceções para botões e elementos com backgrounds escuros */
:root:not([data-theme="dark"]) button,
:root:not([data-theme="dark"]) button *,
:root:not([data-theme="dark"]) .btn,
:root:not([data-theme="dark"]) .btn *,
:root:not([data-theme="dark"]) .btn-primary,
:root:not([data-theme="dark"]) .btn-primary *,
:root:not([data-theme="dark"]) .btn-danger,
:root:not([data-theme="dark"]) .btn-danger *,
:root:not([data-theme="dark"]) .btn-reveal,
:root:not([data-theme="dark"]) .btn-reveal *,
:root:not([data-theme="dark"]) nav a,
:root:not([data-theme="dark"]) nav a *,
:root:not([data-theme="dark"]) .theme-toggle,
:root:not([data-theme="dark"]) .focus-mode-toggle,
:root:not([data-theme="dark"]) .premium-badge,
:root:not([data-theme="dark"]) .premium-badge *,
:root:not([data-theme="dark"]) .premium-badge-small,
:root:not([data-theme="dark"]) .premium-badge-small * {
    color: white !important;
}

body {
    font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-gradient);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    min-height: 100vh;
    padding-bottom: 2rem;
    overflow-x: hidden;
    transition: background 0.3s ease, color 0.3s ease;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Navegação com glassmorphism */
nav {
    background: var(--nav-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 2px solid var(--border-color);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
    animation: slideDownNav 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes slideDownNav {
    0% {
        transform: translateY(-100%);
        opacity: 0;
    }
    60% {
        transform: translateY(10px);
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    padding: 1.5rem 2rem;
    gap: 1.2rem;
    max-width: 1200px;
    margin: 0 auto;
}

nav li {
    display: inline;
    animation: fadeInScale 0.5s ease-out backwards;
    animation-delay: calc(var(--nav-order) * 0.1s);
}

nav li:nth-child(1) { --nav-order: 1; }
nav li:nth-child(2) { --nav-order: 2; }
nav li:nth-child(3) { --nav-order: 3; }
nav li:nth-child(4) { --nav-order: 4; }

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

nav a {
    text-decoration: none;
    color: #ffffff;
    font-weight: 700;
    font-size: 1rem;
    padding: 0.9rem 2rem;
    border-radius: 50px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.8), rgba(118, 75, 162, 0.8));
    backdrop-filter: blur(5px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    letter-spacing: 0.3px;
}

nav a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s;
}

nav a::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50px;
    padding: 2px;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s;
}

nav a:hover::before {
    left: 100%;
}

nav a:hover::after {
    opacity: 1;
}

nav a:hover {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #ffffff;
    transform: translateY(-4px) scale(1.08);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.5), 0 0 30px rgba(118, 75, 162, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

nav a:active {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

/* Cabeçalho principal com efeitos modernos */
body > header {
    text-align: center;
    padding: 3.5rem 2.5rem;
    background: var(--card-bg);
    backdrop-filter: blur(15px);
    margin: 2.5rem auto;
    max-width: 950px;
    border-radius: 30px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease-out;
    border: 2px solid var(--border-color);
}

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

body > header::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #ff6b6b, #4ecdc4, #ffe66d, #a29bfe);
    animation: borderSlide 3s linear infinite;
}

@keyframes borderSlide {
    to {
        left: 100%;
    }
}

h1 {
    background: linear-gradient(135deg, #ffffff, #e0e7ff, #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 3rem;
    margin-bottom: 0.8rem;
    font-weight: 800;
    letter-spacing: -1px;
    animation: fadeIn 1s ease-out;
    filter: drop-shadow(0 4px 8px rgba(102, 126, 234, 0.3));
}

/* Força h1 preto no modo claro */
:root:not([data-theme="dark"]) h1 {
    background: none !important;
    -webkit-text-fill-color: #000000 !important;
    color: #000000 !important;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Section e main */
main {
    text-align: center;
    padding: 3.5rem 2.5rem;
    background: var(--card-bg);
    backdrop-filter: blur(15px);
    margin: 2.5rem auto;
    max-width: 950px;
    border-radius: 30px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
    border: 2px solid var(--border-color);
}

main::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #ff6b6b, #4ecdc4, #ffe66d, #a29bfe);
    animation: borderSlide 3s linear infinite;
}

h2 {
    color: var(--text-primary);
    font-size: 2rem;
    margin-top: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    position: relative;
    display: inline-block;
    text-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

/* Força h2 preto no modo claro */
:root:not([data-theme="dark"]) h2 {
    color: #000000 !important;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #a29bfe, #667eea);
    border-radius: 2px;
    animation: expandWidth 0.6s ease-out;
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.6);
}

@keyframes expandWidth {
    from { width: 0; }
    to { width: 100%; }
}

p {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 1.8rem;
    font-weight: 400;
    animation: fadeIn 1.2s ease-out;
}

/* Força parágrafos pretos no modo claro */
:root:not([data-theme="dark"]) p {
    color: #000000 !important;
}

/* Lista ordenada com cards modernos */
ol {
    text-align: left;
    max-width: 750px;
    margin: 0 auto;
    padding: 0;
    counter-reset: custom-counter;
    list-style: none;
}

ol li {
    counter-increment: custom-counter;
    margin-bottom: 1.5rem;
    padding: 1.5rem 1.5rem 1.5rem 4.5rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15), rgba(118, 75, 162, 0.15));
    border-radius: 15px;
    border-left: 4px solid var(--accent);
    font-size: 1.1rem;
    color: var(--text-primary);
    line-height: 1.8;
    position: relative;
    transition: all 0.3s ease;
    animation: slideInLeft 0.5s ease-out backwards;
    animation-delay: calc(var(--animation-order) * 0.1s);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

ol li:nth-child(1) { --animation-order: 1; }
ol li:nth-child(2) { --animation-order: 2; }
ol li:nth-child(3) { --animation-order: 3; }
ol li:nth-child(4) { --animation-order: 4; }

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

ol li::before {
    content: counter(custom-counter);
    position: absolute;
    left: 1.2rem;
    top: 50%;
    transform: translateY(-50%);
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: rgb(255, 255, 255);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    box-shadow: 0 4px 10px rgba(102, 126, 234, 0.4);
}

ol li:hover {
    transform: translateX(10px) scale(1.02);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
    border-left-color: #f093fb;
}

ol li:last-child {
    margin-bottom: 0;
}

/* Efeitos de partículas decorativas */
body::before,
body::after {
    content: '';
    position: fixed;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    pointer-events: none;
    z-index: -1;
}

body::before {
    top: -150px;
    right: -150px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2), transparent);
    animation: float 8s ease-in-out infinite;
}

body::after {
    bottom: -150px;
    left: -150px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15), transparent);
    animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(180deg); }
}

/* Responsividade */
/* Mobile First Otimizado */

/* Garantir áreas de toque adequadas */
button,
nav a,
ol li {
    -webkit-tap-highlight-color: transparent;
}

button {
    min-width: 44px;
    min-height: 44px;
}

/* Smooth scroll */
* {
    -webkit-overflow-scrolling: touch;
}

@media (max-width: 1024px) {
    main {
        max-width: 95%;
        padding: 0 1rem;
    }
}

@media (max-width: 768px) {
    body {
        padding-bottom: 1rem;
    }

    nav ul {
        padding: 1rem;
        gap: 0.8rem;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    nav ul::-webkit-scrollbar {
        display: none;
    }
    
    nav a {
        font-size: 0.9rem;
        padding: 0.75rem 1.5rem;
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    h1 {
        font-size: 2.1rem;
        line-height: 1.25;
    }
    
    h2 {
        font-size: 1.55rem;
    }
    
    p {
        font-size: 1.05rem;
        line-height: 1.65;
    }
    
    header:not(nav header) {
        margin: 1.5rem 0.5rem;
        padding: 2.5rem 1.75rem;
        border-radius: 22px;
    }
    
    ol {
        gap: 1rem;
    }

    ol li {
        padding: 1.3rem 1.1rem 1.3rem 4.2rem;
        font-size: 1.02rem;
        line-height: 1.6;
        margin-bottom: 0;
        border-radius: 16px;
    }
    
    ol li::before {
        width: 40px;
        height: 40px;
        font-size: 1.05rem;
        left: 1.1rem;
    }
}

@media (max-width: 480px) {
    body {
        padding-bottom: 0.5rem;
    }

    nav ul {
        padding: 0.85rem 0.5rem;
        gap: 0.6rem;
    }

    nav a {
        font-size: 0.85rem;
        padding: 0.7rem 1.25rem;
        border-radius: 12px;
    }

    h1 {
        font-size: 1.7rem;
        line-height: 1.3;
    }
    
    h2 {
        font-size: 1.35rem;
    }
    
    p {
        font-size: 0.98rem;
        line-height: 1.6;
    }
    
    header:not(nav header) {
        padding: 2.25rem 1.35rem;
        margin: 1rem 0.35rem;
        border-radius: 20px;
    }

    ol {
        gap: 0.85rem;
    }
    
    ol li {
        padding: 1.15rem 0.95rem 1.15rem 3.75rem;
        font-size: 0.95rem;
        line-height: 1.55;
        border-radius: 14px;
    }
    
    ol li::before {
        width: 38px;
        height: 38px;
        font-size: 0.95rem;
        left: 0.95rem;
        line-height: 38px;
    }
}

/* iPhone SE e telas muito pequenas */
@media (max-width: 375px) {
    h1 {
        font-size: 1.55rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    p {
        font-size: 0.93rem;
    }

    header:not(nav header) {
        padding: 2rem 1.15rem;
        margin: 0.85rem 0.25rem;
    }

    ol li {
        padding: 1rem 0.85rem 1rem 3.5rem;
        font-size: 0.9rem;
    }

    ol li::before {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
        left: 0.85rem;
        line-height: 36px;
    }
}

/* PWA Standalone */
@media (display-mode: standalone) {
    body {
        padding-top: env(safe-area-inset-top);
        padding-bottom: env(safe-area-inset-bottom);
    }
}

/* Landscape para smartphones */
@media (max-height: 500px) and (orientation: landscape) {
    header:not(nav header) {
        margin: 0.75rem 0.35rem;
        padding: 1.5rem 1.25rem;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.25rem;
    }

    ol li {
        padding: 0.95rem 0.85rem 0.95rem 3.25rem;
    }
}