/* Definições Gerais - Paleta Dark Profissional */
:root {
    --bg-color: #121212;
    --surface-color: #1e1e1e;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --accent-color: #38bdf8;
    --border-color: #333333;
    --glow-shadow: 0 0 15px rgba(56, 189, 248, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Animações (Keyframes) */
@keyframes fadeUp {
    0% { opacity: 0; transform: translateY(30px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* Classes de Animação */
.fade-in-start {
    animation: fadeUp 1s ease-out forwards;
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Navegação */
header {
    background-color: rgba(18, 18, 18, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 1rem 5%;
    position: fixed;
    width: 100%;
    top: 0;
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--accent-color);
    text-shadow: 0 0 10px rgba(56, 189, 248, 0.2);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    transition: color 0.3s, text-shadow 0.3s;
}

.nav-links a:hover {
    color: var(--accent-color);
    text-shadow: var(--glow-shadow);
}

/* Secções Comuns */
section {
    padding: 120px 5% 80px;
    max-width: 1200px;
    margin: 0 auto;
}

h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-primary);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

h2::after {
    content: '';
    position: absolute;
    width: 50%;
    height: 3px;
    background-color: var(--accent-color);
    bottom: -10px;
    left: 25%;
    border-radius: 2px;
    box-shadow: var(--glow-shadow);
}

h3, h4 { color: var(--text-primary); }
p { color: var(--text-secondary); }

/* Hero Section */
#hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 0;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.hero-content h1 span {
    color: var(--accent-color);
    text-shadow: var(--glow-shadow);
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
}

/* Botões com Efeitos Modernos */
.btn {
    display: inline-block;
    padding: 14px 28px;
    background-color: var(--accent-color);
    color: #0f172a;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 700;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    margin: 0 10px;
    border: 2px solid var(--accent-color);
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.2);
}

.btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(56, 189, 248, 0.5);
    background-color: transparent;
    color: var(--accent-color);
}

.btn-outline {
    background-color: transparent;
    color: var(--accent-color);
    box-shadow: none;
}

.btn-outline:hover {
    background-color: var(--accent-color);
    color: #0f172a;
    box-shadow: 0 8px 25px rgba(56, 189, 248, 0.5);
}

/* CV Section */
.cv-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.cv-column h3 {
    margin-bottom: 1.5rem;
    color: var(--accent-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.hover-effect {
    background-color: var(--surface-color);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.hover-effect:hover {
    transform: translateX(10px);
    border-color: var(--accent-color);
    box-shadow: -5px 5px 20px rgba(0,0,0,0.5);
}

.cv-item .date {
    color: var(--accent-color);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.skills-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skills-list li {
    background-color: var(--surface-color);
    color: var(--text-primary);
    padding: 10px 20px;
    border-radius: 30px;
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
    transition: all 0.3s ease;
    cursor: default;
}

.skills-list li:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: var(--glow-shadow);
}

/* Portfólio Section */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.card {
    background: var(--surface-color);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.4s ease;
}

.card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: 0 15px 30px rgba(0,0,0,0.4), var(--glow-shadow);
}

.card-img {
    height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #2a2a2a;
    color: var(--text-secondary);
    transition: all 0.4s ease;
}

.card:hover .card-img {
    background-color: #333;
}

.card-content {
    padding: 1.8rem;
}

.card-content h3 { margin-bottom: 0.5rem; }

.link {
    display: inline-flex;
    align-items: center;
    margin-top: 1rem;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.link:hover {
    transform: translateX(5px);
    text-shadow: var(--glow-shadow);
}

/* Contactos, Formulário & Footer */
#contactos {
    text-align: center;
    background-color: var(--surface-color);
    border-radius: 16px;
    padding: 80px 5%;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.contact-container {
    max-width: 600px;
    margin: 2.5rem auto 0;
    text-align: left;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 14px;
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #666;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: var(--glow-shadow);
    background-color: #1a1a1a;
}

.btn-submit {
    width: 100%;
    margin: 0;
    cursor: pointer;
    text-align: center;
}

.success-message {
    text-align: center;
    padding: 2rem;
    background-color: rgba(56, 189, 248, 0.05);
    border: 1px solid var(--accent-color);
    border-radius: 8px;
    margin-bottom: 2rem;
    animation: fadeUp 0.5s ease-out forwards;
}

.success-message h3 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.contact-info {
    margin-top: 2.5rem;
    font-size: 1.1rem;
    text-align: center;
}

.contact-info p { margin-bottom: 1rem; }

.contact-info a {
    color: var(--accent-color);
    text-decoration: none;
    transition: all 0.3s;
}

.contact-info a:hover {
    text-shadow: var(--glow-shadow);
}

footer {
    text-align: center;
    padding: 2rem;
    background-color: #0a0a0a;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
}

/* Responsividade */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .cv-grid { grid-template-columns: 1fr; }
    .hero-content h1 { font-size: 2.8rem; }
    .hover-effect:hover { transform: translateX(0) translateY(-5px); }
}