/* ============================================================
   style.css — Estilos customizados para Roberto Fausto
   ============================================================ */

/* ---------- Importação de fonte ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ---------- Variáveis ---------- */
:root {
    --gradient-start: #3b82f6;
    --gradient-end: #8b5cf6;
    --bg-primary: #030712;
    --bg-card: #111827;
    --border-color: rgba(59, 130, 246, 0.2);
    --transition-speed: 0.3s;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: #f9fafb;
    overflow-x: hidden;
}

/* ---------- Scrollbar customizada ---------- */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #030712;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, #3b82f6, #8b5cf6);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, #2563eb, #7c3aed);
}

/* ---------- Gradiente animado para títulos ---------- */
@keyframes gradient-shift {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.gradient-text {
    background: linear-gradient(135deg, #60a5fa, #a78bfa, #f472b6, #60a5fa);
    background-size: 300% 300%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient-shift 4s ease infinite;
}

/* ---------- Animação fade-in-up ---------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ---------- Animação fade-in ---------- */
.fade-in {
    opacity: 0;
    transition: opacity 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
}

/* ---------- Barras de progresso ---------- */
.progress-bar-fill {
    width: 0;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
}

.progress-bar-fill.animated {
    /* largura será definida pelo JS via atributo data-width */
}

/* ---------- Cards com hover ---------- */
.card-hover {
    transition: transform var(--transition-speed) ease,
                box-shadow var(--transition-speed) ease,
                border-color var(--transition-speed) ease;
}

.card-hover:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.5);
}

/* ---------- Navbar ---------- */
#navbar {
    transition: background-color 0.4s ease, backdrop-filter 0.4s ease, box-shadow 0.4s ease;
}

#navbar.scrolled {
    background-color: rgba(3, 7, 18, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(59, 130, 246, 0.15);
}

/* ---------- Link ativo na navbar ---------- */
.nav-link {
    position: relative;
    transition: color var(--transition-speed) ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    transition: width var(--transition-speed) ease;
    border-radius: 1px;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* ---------- Hero typing effect ---------- */
@keyframes blink-caret {
    0%, 100% { border-color: transparent; }
    50%       { border-color: #60a5fa; }
}

.typing-cursor {
    border-right: 3px solid #60a5fa;
    animation: blink-caret 0.9s step-end infinite;
    padding-right: 3px;
}

/* ---------- Botão com gradiente ---------- */
.btn-gradient {
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    transition: opacity var(--transition-speed) ease, transform var(--transition-speed) ease;
}

.btn-gradient:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

/* ---------- Efeito glow sutil nos cards ---------- */
.glow-blue {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.1);
}

/* ---------- Timeline ---------- */
.timeline-line {
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #3b82f6, #8b5cf6, transparent);
}

/* ---------- Efeito hero gradiente de fundo ---------- */
.hero-bg {
    background:
        radial-gradient(ellipse at 20% 50%, rgba(59, 130, 246, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.08) 0%, transparent 60%),
        #030712;
}

/* ---------- Badge de tecnologia ---------- */
.tech-badge {
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
}

.tech-badge:hover {
    background-color: rgba(59, 130, 246, 0.3);
    color: #93c5fd;
}

/* ---------- Menu mobile ---------- */
/* Visibilidade controlada pela classe 'hidden' do Tailwind via JavaScript */
#mobile-menu {
    transition: opacity 0.3s ease;
}

/* ---------- Formulário de contato ---------- */
.form-input {
    transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.form-input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    outline: none;
}

/* ---------- Animação stagger para listas ---------- */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

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

/* ---------- Placeholder de dashboard ---------- */
.dashboard-placeholder {
    background: linear-gradient(135deg, #111827, #1f2937);
    border: 1px dashed rgba(59, 130, 246, 0.3);
    transition: border-color var(--transition-speed) ease;
}

.dashboard-placeholder:hover {
    border-color: rgba(59, 130, 246, 0.6);
}