/**
 * Estilos Principais - Portfólio Gledson Morais
 * 
 * Este arquivo contém os estilos base do portfólio, incluindo:
 * - Reset CSS
 * - Estilos globais
 * - Layout base
 * - Componentes reutilizáveis
 * 
 * @author Gledson Morais de Oliveira
 * @version 1.0
 */

/* Importar Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* ==========================================
   RESET CSS
   ========================================== */

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    background-image: var(--gradient-radial);
    background-attachment: fixed;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: all var(--duration-normal) var(--ease-out);
}

a:hover {
    color: var(--primary-red);
}

button {
    font-family: inherit;
    border: none;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
}

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
}

ul,
ol {
    list-style: none;
}

/* ==========================================
   UTILIDADES
   ========================================== */

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

.section {
    padding: var(--section-padding) 0;
    position: relative;
}

@media (max-width: 768px) {
    .section {
        padding: var(--section-padding-mobile) 0;
    }
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    background: var(--gradient-text);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: none;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--gradient-red);
    margin: var(--spacing-lg) auto 0;
    border-radius: var(--border-radius-full);
    box-shadow: var(--neon-glow-md);
}

/* ==========================================
   GLASSMORPHISM
   ========================================== */

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: var(--border-width-thin) solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--duration-normal) var(--ease-out);
}

.glass-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-5px);
    box-shadow: var(--neon-glow-md);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--gradient-red);
    color: var(--text-primary);
    box-shadow: var(--neon-glow-md);
    border: var(--border-width-normal) solid var(--primary-red);
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--neon-glow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: var(--border-width-normal) solid var(--glass-border);
}

.btn-outline:hover {
    border-color: var(--primary-red);
    box-shadow: var(--neon-glow-md);
    transform: translateY(-2px);
}

/* ==========================================
   GRID
   ========================================== */

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

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

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

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {

    .grid-3,
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   TAGS
   ========================================== */

.tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--glass-bg);
    border: var(--border-width-thin) solid var(--glass-border);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    transition: all var(--duration-fast) var(--ease-out);
}

.tag:hover {
    background: var(--primary-red-glow-soft);
    border-color: var(--primary-red);
    color: var(--text-primary);
}

/* ==========================================
   SCROLLBAR CUSTOMIZADO
   ========================================== */

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-red);
    border-radius: var(--border-radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-red-light);
}

/* ==========================================
   SELEÇÃO DE TEXTO
   ========================================== */

::selection {
    background: var(--primary-red-glow);
    color: var(--text-primary);
}

::-moz-selection {
    background: var(--primary-red-glow);
    color: var(--text-primary);
}

/* ==========================================
   ANIMAÇÕES FADE IN
   ========================================== */

.fade-in {
    opacity: 1;
    /* FORÇADO VISÍVEL: Evita site branco se JS falhar */
    transform: none;
    transition: opacity var(--duration-slow) var(--ease-out),
        transform var(--duration-slow) var(--ease-out);
}

.fade-in.hidden-initial {
    /* Só esconde se o JS adicionar esta classe */
    opacity: 0;
    transform: translateY(20px);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================
   LOADING SPINNER
   ========================================== */

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--primary-red);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ==========================================
   RESPONSIVO
   ========================================== */

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }

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

    .btn {
        width: 100%;
    }
}