/* ==========================================
   YURI SILVA - PORTFOLIO LANDING PAGE
   Modern Dark Theme with Blue Accent
   ========================================== */

/* CSS Variables */
:root {
    --primary-color: #0066ff;
    --primary-light: #3385ff;
    --primary-dark: #0052cc;
    --primary-glow: rgba(0, 102, 255, 0.4);

    --bg-dark: #0a0a0f;
    --bg-darker: #050508;
    --bg-card: #12121a;
    --bg-card-hover: #1a1a25;

    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b7b;

    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, #00ccff 100%);
    --gradient-dark: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);

    --border-color: rgba(255, 255, 255, 0.08);
    --shadow-color: rgba(0, 0, 0, 0.3);

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

::selection {
    background: var(--primary-color);
    color: white;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Custom Cursor - Modern Style */
.cursor, .cursor-follower {
    display: none;
}

@media (min-width: 1024px) and (pointer: fine) {
    .cursor {
        display: block;
        position: fixed;
        width: 6px;
        height: 6px;
        background: #fff;
        border-radius: 50%;
        pointer-events: none;
        z-index: 10001;
        transform: translate(-50%, -50%);
        transition: transform 0.08s ease-out, opacity 0.3s ease;
        box-shadow:
            0 0 10px var(--primary-color),
            0 0 20px var(--primary-color),
            0 0 30px rgba(0, 102, 255, 0.5);
    }

    .cursor-follower {
        display: block;
        position: fixed;
        width: 40px;
        height: 40px;
        border: 2px solid transparent;
        border-radius: 50%;
        pointer-events: none;
        z-index: 10000;
        transform: translate(-50%, -50%);
        transition:
            transform 0.2s cubic-bezier(0.165, 0.84, 0.44, 1),
            width 0.4s cubic-bezier(0.165, 0.84, 0.44, 1),
            height 0.4s cubic-bezier(0.165, 0.84, 0.44, 1),
            background 0.3s ease,
            border-color 0.3s ease;
        background: radial-gradient(circle, rgba(0, 102, 255, 0.1) 0%, transparent 70%);
        backdrop-filter: blur(1px);
    }

    .cursor-follower::before {
        content: '';
        position: absolute;
        top: -2px;
        left: -2px;
        right: -2px;
        bottom: -2px;
        border-radius: 50%;
        border: 2px solid var(--primary-color);
        opacity: 0.6;
        animation: cursorPulse 2s ease-in-out infinite;
    }

    .cursor-follower::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 4px;
        height: 4px;
        background: transparent;
        border-radius: 50%;
        transform: translate(-50%, -50%);
        transition: all 0.3s ease;
    }

    @keyframes cursorPulse {
        0%, 100% {
            transform: scale(1);
            opacity: 0.6;
        }
        50% {
            transform: scale(1.1);
            opacity: 0.3;
        }
    }

    /* Hover state - quando passa em elementos clicáveis */
    .cursor.hover {
        transform: translate(-50%, -50%) scale(0.5);
        background: var(--primary-color);
        box-shadow:
            0 0 15px var(--primary-color),
            0 0 30px var(--primary-color),
            0 0 45px rgba(0, 102, 255, 0.8);
    }

    .cursor-follower.hover {
        width: 60px;
        height: 60px;
        background: radial-gradient(circle, rgba(0, 102, 255, 0.15) 0%, transparent 70%);
    }

    .cursor-follower.hover::before {
        border-color: var(--primary-light);
        animation: cursorPulseHover 1s ease-in-out infinite;
    }

    @keyframes cursorPulseHover {
        0%, 100% {
            transform: scale(1);
            opacity: 0.8;
        }
        50% {
            transform: scale(1.15);
            opacity: 0.4;
        }
    }

    /* Click state */
    .cursor.clicking {
        transform: translate(-50%, -50%) scale(0.3);
    }

    .cursor-follower.clicking {
        width: 35px;
        height: 35px;
    }
}

/* ==========================================
   NAVIGATION
   ========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
    transition: all var(--transition-normal);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
    font-size: 1.8rem;
    font-weight: 700;
}

.logo-text {
    color: var(--text-primary);
}

.logo-highlight {
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 35px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-links a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 300px;
        height: 100vh;
        background: var(--bg-card);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        transition: right var(--transition-normal);
        border-left: 1px solid var(--border-color);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        font-size: 1.2rem;
    }
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 100px 20px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 15s infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0.3;
    }
    50% {
        transform: translateY(-100px) translateX(50px);
        opacity: 0.8;
    }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(0, 102, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(0, 204, 255, 0.1) 0%, transparent 50%);
    z-index: 0;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
    width: 100%;
}

.hero-text {
    animation: fadeInUp 1s ease;
}

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

.greeting {
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.name {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: 15px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.typing-wrapper {
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.static-text {
    color: var(--text-secondary);
}

.typing-text {
    color: var(--primary-color);
    font-weight: 600;
}

.cursor-typing {
    color: var(--primary-color);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 35px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--primary-glow);
}

.btn-primary i {
    transition: transform var(--transition-normal);
}

.btn-primary:hover i {
    transform: translateX(5px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.hero-social {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 1.2rem;
    text-decoration: none;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

/* Hero Image / Code Window */
.hero-image {
    animation: fadeInUp 1s ease 0.3s both;
}

.image-container {
    position: relative;
}

.code-window {
    background: var(--bg-card);
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.window-header {
    background: var(--bg-darker);
    padding: 12px 15px;
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #28c840; }

.code-content {
    padding: 25px;
    font-family: 'Fira Code', 'Monaco', monospace;
    font-size: 0.9rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-content code {
    color: var(--text-secondary);
}

.keyword { color: #c678dd; }
.variable { color: #e5c07b; }
.property { color: #61afef; }
.string { color: #98c379; }
.function { color: #61afef; }

/* Floating Icons */
.floating-icons {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.float-icon {
    position: absolute;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border-radius: 12px;
    font-size: 1.5rem;
    border: 1px solid var(--border-color);
    animation: floatIcon 6s ease-in-out infinite;
}

.float-icon i {
    color: var(--primary-color);
}

.icon-1 { top: -20px; right: -20px; animation-delay: 0s; }
.icon-2 { bottom: 20%; right: -30px; animation-delay: 1.5s; }
.icon-3 { bottom: -20px; left: 20%; animation-delay: 3s; }
.icon-4 { top: 30%; left: -30px; animation-delay: 4.5s; }

@keyframes floatIcon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-size: 0.85rem;
    animation: fadeIn 1s ease 1s both;
}

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

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 15px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 20px; }
}

/* Hero Responsive */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        order: 1;
    }

    .hero-image {
        order: 2;
        max-width: 500px;
        margin: 0 auto;
    }

    .hero-description {
        margin: 0 auto 35px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-social {
        justify-content: center;
    }

    .typing-wrapper {
        justify-content: center;
    }

    .scroll-indicator {
        display: none;
    }
}

/* ==========================================
   SECTION COMMON STYLES
   ========================================== */
section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    color: var(--primary-color);
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    margin-bottom: 15px;
    opacity: 0.8;
}

.section-tag.closing {
    display: block;
    text-align: center;
    margin-top: 60px;
    margin-bottom: 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    margin-bottom: 15px;
}

.title-underline {
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    margin: 0 auto;
    border-radius: 2px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-top: 20px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ==========================================
   SOBRE SECTION
   ========================================== */
.sobre {
    background: var(--bg-darker);
}

.sobre-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: center;
}

.sobre-image {
    position: relative;
}

.image-frame {
    position: relative;
    width: 100%;
    max-width: 350px;
    aspect-ratio: 1;
    margin: 0 auto;
}

.frame-border {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary-color);
    border-radius: 20px;
    z-index: 0;
}

.profile-placeholder {
    position: relative;
    width: 100%;
    height: 100%;
    background: var(--bg-card);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    color: var(--primary-color);
    overflow: hidden;
    z-index: 1;
}

.profile-placeholder::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, var(--primary-color), transparent);
    animation: rotate 4s linear infinite;
    opacity: 0.1;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.experience-badge {
    position: absolute;
    bottom: -10px;
    right: -10px;
    background: var(--gradient-primary);
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px var(--primary-glow);
    z-index: 2;
}

.exp-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    line-height: 1;
}

.exp-text {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.3;
}

.sobre-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.sobre-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.sobre-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 40px 0;
    padding: 30px;
    background: var(--bg-card);
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    display: inline;
}

.stat-plus {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
}

.stat-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 5px;
}

/* Sobre Responsive */
@media (max-width: 968px) {
    .sobre-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .sobre-image {
        order: 1;
    }

    .sobre-text {
        order: 2;
    }

    .image-frame {
        max-width: 280px;
    }

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

@media (max-width: 480px) {
    .sobre-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* ==========================================
   SKILLS SECTION
   ========================================== */
.skills {
    background: var(--bg-dark);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.skill-category {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.skill-category:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 102, 255, 0.1);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.category-header i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.category-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-item {
    width: 100%;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.skill-info span:first-child {
    color: var(--text-secondary);
}

.skill-info span:last-child {
    color: var(--primary-color);
    font-weight: 600;
}

.skill-bar {
    height: 8px;
    background: var(--bg-darker);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    width: 0;
    transition: width 1.5s ease;
}

/* Tech Icons */
.tech-icons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.tech-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border-radius: 15px;
    font-size: 1.8rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.tech-icon:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

/* Skills Responsive */
@media (max-width: 768px) {
    .skills-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   SERVICOS SECTION
   ========================================== */
.servicos {
    background: var(--bg-darker);
}

.servicos-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.servico-card {
    background: var(--bg-card);
    padding: 35px 25px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    text-align: center;
    position: relative;
    transition: all var(--transition-normal);
}

.servico-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 50px rgba(0, 102, 255, 0.15);
}

.servico-card.featured {
    border-color: var(--primary-color);
    background: linear-gradient(180deg, var(--bg-card) 0%, rgba(0, 102, 255, 0.05) 100%);
}

.featured-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    padding: 5px 20px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.servico-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 102, 255, 0.1);
    border-radius: 20px;
    font-size: 2rem;
    color: var(--primary-color);
    transition: all var(--transition-normal);
}

.servico-card:hover .servico-icon {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

.servico-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.servico-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.7;
}

.servico-features {
    list-style: none;
    text-align: left;
}

.servico-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 8px 0;
    border-top: 1px solid var(--border-color);
}

.servico-features li i {
    color: var(--primary-color);
    font-size: 0.8rem;
}

/* Servicos Responsive */
@media (max-width: 1200px) {
    .servicos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .servicos-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   PROJETOS SECTION
   ========================================== */
.projetos {
    background: var(--bg-dark);
}

.projetos-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    border: 2px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    border-radius: 30px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all var(--transition-normal);
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.filter-btn.active {
    background: var(--primary-color);
    color: white;
}

.projetos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.projeto-card {
    background: var(--bg-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.projeto-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 50px rgba(0, 102, 255, 0.15);
}

.projeto-card.hidden {
    display: none;
}

.projeto-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.projeto-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-card) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.5;
}

.projeto-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 102, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.projeto-card:hover .projeto-overlay {
    opacity: 1;
}

.projeto-link {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 50%;
    color: var(--primary-color);
    font-size: 1.2rem;
    text-decoration: none;
    transform: translateY(20px);
    opacity: 0;
    transition: all var(--transition-normal);
}

.projeto-card:hover .projeto-link {
    transform: translateY(0);
    opacity: 1;
}

.projeto-link:nth-child(2) {
    transition-delay: 0.1s;
}

.projeto-link:hover {
    background: var(--bg-dark);
    color: white;
}

.projeto-info {
    padding: 25px;
}

.projeto-info h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.projeto-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.projeto-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.projeto-tags span {
    padding: 5px 12px;
    background: rgba(0, 102, 255, 0.1);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Projetos Responsive */
@media (max-width: 1024px) {
    .projetos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .projetos-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   CONTATO SECTION
   ========================================== */
.contato {
    background: var(--bg-darker);
}

.contato-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.contato-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.info-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 25px;
    background: var(--bg-card);
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.info-card:hover {
    border-color: var(--primary-color);
    transform: translateX(10px);
}

.info-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 102, 255, 0.1);
    border-radius: 15px;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.info-text h4 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.info-text a,
.info-text p {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.info-text a:hover {
    color: var(--primary-color);
}

/* Contact Form */
.contato-form {
    background: var(--bg-card);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.form-group {
    position: relative;
    margin-bottom: 30px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: var(--bg-darker);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    transition: all var(--transition-normal);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group label {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1rem;
    pointer-events: none;
    transition: all var(--transition-normal);
    background: var(--bg-darker);
    padding: 0 5px;
}

.form-group textarea + label {
    top: 25px;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
}

.form-group input:focus + label,
.form-group input:valid + label,
.form-group textarea:focus + label,
.form-group textarea:valid + label {
    top: 0;
    font-size: 0.85rem;
    color: var(--primary-color);
}

.focus-border {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: all var(--transition-normal);
}

.form-group input:focus ~ .focus-border,
.form-group textarea:focus ~ .focus-border {
    width: 100%;
    left: 0;
}

.btn-submit {
    width: 100%;
    padding: 18px;
    font-size: 1.1rem;
}

/* Contato Responsive */
@media (max-width: 968px) {
    .contato-content {
        grid-template-columns: 1fr;
    }

    .contato-form {
        padding: 30px 20px;
    }
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    background: var(--bg-darker);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo .logo-text {
    font-size: 2rem;
}

.footer-logo p {
    color: var(--text-secondary);
    margin-top: 15px;
}

.footer-links h4,
.footer-social h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: 1.2rem;
    text-decoration: none;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-bottom i {
    color: var(--primary-color);
}

/* Footer Responsive */
@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 10px;
    }
}

/* ==========================================
   WHATSAPP FLOAT BUTTON
   ========================================== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    border-radius: 50%;
    color: white;
    font-size: 2rem;
    text-decoration: none;
    z-index: 999;
    box-shadow: 0 5px 20px rgba(37, 211, 102, 0.4);
    transition: all var(--transition-normal);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-float::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: #25D366;
    z-index: -1;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

/* ==========================================
   BACK TO TOP BUTTON
   ========================================== */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--primary-color);
    border-radius: 50%;
    color: var(--primary-color);
    font-size: 1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 998;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

/* ==========================================
   ANIMATIONS & UTILITIES
   ========================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

/* Loading Animation */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Glow Effect */
.glow {
    box-shadow: 0 0 20px var(--primary-glow);
}

/* Responsive Utilities */
@media (max-width: 480px) {
    section {
        padding: 60px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
    }
}