/* ===========================
   RESET & BASE STYLES
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --color-bg-dark: #0a0e17;
    --color-bg-gradient-start: #0d1b2a;
    --color-bg-gradient-mid: #1b263b;
    --color-bg-gradient-end: #2d1b4e;
    
    --color-teal: #00d4aa;
    --color-cyan: #00e5ff;
    --color-purple: #a855f7;
    --color-blue: #3b82f6;
    --color-pink: #ec4899;
    
    --color-card-bg: rgba(30, 41, 59, 0.6);
    --color-card-border: rgba(148, 163, 184, 0.1);
    
    --color-text-primary: #f8fafc;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
}

body {
    font-family: var(--font-main);
    background: linear-gradient(135deg, 
        var(--color-bg-gradient-start) 0%, 
        var(--color-bg-gradient-mid) 50%, 
        var(--color-bg-gradient-end) 100%);
    background-attachment: fixed;
    color: var(--color-text-primary);
    /* line-height: 1.6; */
    overflow-x: hidden;
    min-height: 100vh;
    max-width: 100vw;
    width: 100%;
}

html {
    overflow-x: hidden;
    max-width: 100vw;
}

/* ===========================
   BACKGROUND ELEMENTS
   =========================== */
.bg-circuit,
.bg-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.03;
}

.bg-circuit {
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 50px, var(--color-cyan) 50px, var(--color-cyan) 51px),
        repeating-linear-gradient(90deg, transparent, transparent 50px, var(--color-cyan) 50px, var(--color-cyan) 51px);
    background-size: 100px 100px;
    animation: circuitMove 20s linear infinite;
}

.bg-particles {
    background-image: radial-gradient(2px 2px at 20% 30%, var(--color-teal), transparent),
                      radial-gradient(2px 2px at 60% 70%, var(--color-purple), transparent),
                      radial-gradient(1px 1px at 50% 50%, var(--color-cyan), transparent),
                      radial-gradient(1px 1px at 80% 10%, var(--color-pink), transparent);
    background-size: 200% 200%;
    animation: particlesFloat 15s ease-in-out infinite;
}

@keyframes circuitMove {
    0% { background-position: 0 0; }
    100% { background-position: 100px 100px; }
}

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

/* ===========================
   HEADER / HERO SECTION
   =========================== */
.hero {
    position: relative;
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    z-index: 1;
    background: radial-gradient(ellipse at top, 
        rgba(59, 130, 246, 0.15) 0%, 
        transparent 60%);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-name {
    font-size: clamp(2.5rem, 6vw, 2.5rem);
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: #b8d4ec;
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    font-weight: 300;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-lg);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    align-items: center;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    color: var(--color-text-secondary);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.social-icon:hover {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--color-cyan);
    color: var(--color-cyan);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 229, 255, 0.3);
}

/* ===========================
   MAIN CONTAINER
   =========================== */
.container {
    position: relative;
    z-index: 1;
    max-width: 100%;
    width: 100%;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-2xl);
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    overflow-x: hidden;
    box-sizing: border-box;
}
    background: #191f2b;
}

/* ===========================
   CARD STYLES
   =========================== */
.card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.card:hover {
    border-color: rgba(0, 229, 255, 0.3);
    box-shadow: 0 12px 40px rgba(0, 229, 255, 0.2);
    transform: translateY(-2px);
}

.section-title {
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    color: #b8d4ec;
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-cyan), transparent);
    border-radius: 2px;
}

/* ===========================
   LEFT COLUMN
   =========================== */
.left-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    width: 100%;
}

/* About Section */
.about-text {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
    column-gap: 0.1rem;
    padding: var(--spacing-sm) 0;
    justify-items: center;
}

/* Centralizar os últimos 3 ícones */
.skill-hex:nth-child(6) {
    grid-column: 2;
}

.skill-hex:nth-child(7) {
    grid-column: 3;
}

.skill-hex:nth-child(8) {
    grid-column: 4;
}

.skill-hex {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s ease;
    width: 100px;
    height: 110px;
}

.skill-hex:hover {
    transform: scale(1.15);
}

.skill-hex svg {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 110px;
}

.hex-bg {
    fill: rgba(30, 41, 59, 0.6);
    transition: fill 0.3s ease;
}

.hex-border {
    fill: none;
    stroke-width: 2.5;
    transition: all 0.3s ease;
    opacity: 0.8;
}

.skill-quantum .hex-border { stroke: var(--color-purple); }
.skill-python .hex-border { stroke: var(--color-blue); }
.skill-cpp .hex-border { stroke: var(--color-cyan); }
.skill-algo .hex-border { stroke: var(--color-teal); }
.skill-devops .hex-border { stroke: var(--color-pink); }
.skill-git .hex-border { stroke: var(--color-purple); }
.skill-linux .hex-border { stroke: var(--color-cyan); }
.skill-docker .hex-border { stroke: var(--color-blue); }

.skill-hex:hover .hex-bg {
    fill: rgba(59, 130, 246, 0.3);
}

.skill-hex:hover .hex-border {
    filter: drop-shadow(0 0 15px currentColor) drop-shadow(0 0 5px currentColor);
    stroke-width: 3;
    opacity: 1;
}

.skill-icon {
    position: relative;
    z-index: 2;
    width: 40px;
    height: 40px;
    object-fit: contain;
    margin-top: 1px;
    margin-bottom: 5px;
}

.skill-label {
    position: relative;
    z-index: 2;
    font-size: 0.7rem;
    color: var(--color-text-secondary);
    font-weight: 600;
    text-align: center;
    letter-spacing: 0.05em;
    max-width: 70px;
    line-height: 1.2;
}

/* ===========================
   RIGHT COLUMN
   =========================== */
.right-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    width: 100%;
}

/* Projects Section */
.projects-section {
    display: flex;
    flex-direction: column;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    min-width: 0;
}

.project-card {
    background: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    min-width: 0;
    overflow: hidden;
}

.project-card:hover {
    border-color: rgba(168, 85, 247, 0.4);
    box-shadow: 0 8px 30px rgba(168, 85, 247, 0.2);
    transform: translateX(5px);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
    gap: var(--spacing-md);
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    flex: 1;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.project-tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    background: rgba(59, 130, 246, 0.2);
    border: 1px solid rgba(59, 130, 246, 0.4);
    border-radius: 1rem;
    color: var(--color-cyan);
    font-weight: 500;
    white-space: nowrap;
}

.project-description {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tech-badge {
    font-size: 0.75rem;
    padding: 0.35rem 0.75rem;
    background: rgba(148, 163, 184, 0.1);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 0.5rem;
    color: var(--color-text-muted);
    font-weight: 500;
    transition: all 0.3s ease;
}

.tech-badge:hover {
    background: rgba(0, 212, 170, 0.2);
    border-color: var(--color-teal);
    color: var(--color-teal);
}

/* Education Section */
.education-section {
    display: flex;
    flex-direction: column;
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    min-width: 0;
}

.education-card {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    background: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-md);
    min-width: 0;
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.education-card:hover {
    border-color: rgba(0, 212, 170, 0.4);
    box-shadow: 0 8px 30px rgba(0, 212, 170, 0.2);
    transform: translateX(5px);
}

.education-content {
    width: 100%;
}

.education-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.education-institution {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.25rem;
}

.education-year {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* ===========================
   FOOTER
   =========================== */
.footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--color-text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--color-card-border);
    background: rgba(10, 14, 23, 0.5);
    backdrop-filter: blur(10px);
}

/* ===========================
   RESPONSIVE DESIGN
   =========================== */
@media (max-width: 1200px) {
    .container {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-lg);
        padding: var(--spacing-xl) var(--spacing-lg);
    }
}

@media (max-width: 992px) {
    .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .skills-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.75rem;
    }
    
    .projects-grid,
    .education-grid {
        grid-template-columns: 1fr;
    }
    
    .skill-hex {
        width: 90px;
        height: 100px;
    }
    
    .skill-hex svg {
        width: 90px;
        height: 100px;
    }
    
    .skill-icon {
        width: 35px;
        height: 35px;
        margin-top: 12px;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .hero-name {
        font-size: 2rem;
        letter-spacing: 0.08em;
        white-space: normal;
        word-break: break-word;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
    
    .container {
        padding: var(--spacing-md) var(--spacing-sm);
        width: 100%;
        max-width: 100vw;
    }
    
    .left-column,
    .right-column {
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
    }
    
    .skills-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.4rem;
        column-gap: 0.25rem;
        width: 100%;
        padding: var(--spacing-sm) 0;
    }
    
    .skill-hex {
        width: 70px;
        height: 80px;
    }
    
    .skill-hex svg {
        width: 70px;
        height: 80px;
    }
    
    .skill-icon {
        width: 28px;
        height: 28px;
        margin-top: 8px;
    }
    
    .skill-label {
        font-size: 0.6rem;
        max-width: 60px;
    }
    
    .section-title {
        font-size: 1.4rem;
    }
    
    .project-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .project-description,
    .about-text {
        font-size: 0.9rem;
    }
    
    .card,
    .project-card,
    .education-card {
        width: 100%;
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .skills-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.3rem;
        column-gap: 0.2rem;
    }
    
    .skill-hex {
        width: 65px;
        height: 75px;
    }
    
    .skill-hex svg {
        width: 65px;
        height: 75px;
    }
    
    .skill-icon {
        width: 25px;
        height: 25px;
        margin-top: 8px;
    }
    
    .skill-label {
        font-size: 0.55rem;
        max-width: 55px;
    }
    
    .hero {
        padding: var(--spacing-md) var(--spacing-xs);
    }
    
    .hero-name {
        font-size: 1.75rem;
        letter-spacing: 0.05em;
    }
    
    .hero-subtitle {
        font-size: 0.8rem;
    }
    
    .container {
        padding: var(--spacing-md) var(--spacing-xs);
    }
    
    .section-title {
        font-size: 1.25rem;
    }
    
    .card,
    .project-card,
    .education-card {
        padding: var(--spacing-sm);
    }
    
    .tech-badge {
        font-size: 0.65rem;
        padding: 0.2rem 0.5rem;
    }
}

/* ===========================
   ANIMATIONS
   =========================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card,
.project-card,
.education-card {
    animation: fadeIn 0.6s ease-out backwards;
}

.card:nth-child(1) { animation-delay: 0.1s; }
.card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(1) { animation-delay: 0.3s; }
.project-card:nth-child(2) { animation-delay: 0.4s; }
.project-card:nth-child(3) { animation-delay: 0.5s; }
.project-card:nth-child(4) { animation-delay: 0.6s; }

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection styling */
::selection {
    background: rgba(0, 229, 255, 0.3);
    color: var(--color-text-primary);
}

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

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-cyan), var(--color-purple));
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--color-purple), var(--color-cyan));
}