/* ==========================================================================
   VINNY PEREIRA - SITE PROFISSIONAL
   Styles.css - Design System & Components
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS VARIABLES & DESIGN TOKENS
   -------------------------------------------------------------------------- */
:root {
    /* Colors */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #0f0f16;
    --color-bg-card: #14141c;
    --color-bg-card-hover: #1a1a24;
    
    --color-blue-primary: #2563eb;
    --color-blue-dark: #1a365d;
    --color-blue-glow: rgba(37, 99, 235, 0.4);
    --color-blue-subtle: rgba(37, 99, 235, 0.1);
    
    --color-gray-100: #f5f5f7;
    --color-gray-200: #e5e5e7;
    --color-gray-300: #a1a1aa;
    --color-gray-400: #71717a;
    --color-gray-500: #52525b;
    --color-gray-600: #3f3f46;
    --color-gray-700: #27272a;
    --color-gray-800: #1f1f24;
    --color-gray-900: #18181b;
    
    --color-text-primary: #f5f5f7;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;
    
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);
    
    --color-success: #22c55e;
    --color-error: #ef4444;
    
    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Borders */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--color-blue-glow);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Z-index */
    --z-base: 1;
    --z-header: 100;
    --z-modal: 1000;
}

/* --------------------------------------------------------------------------
   RESET & BASE
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Noise texture overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    z-index: 0;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

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

/* --------------------------------------------------------------------------
   UTILITIES
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-blue-primary), #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --------------------------------------------------------------------------
   BUTTONS
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-icon {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-blue-primary), #3b82f6);
    color: white;
    box-shadow: 0 4px 15px var(--color-blue-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px var(--color-blue-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-hover);
}

.btn-secondary:hover {
    background: var(--color-bg-card);
    border-color: var(--color-gray-500);
}

.btn-whatsapp {
    background: #25D366;
    color: white;
    padding: var(--space-4) var(--space-8);
}

.btn-whatsapp:hover {
    background: #20bd5a;
    transform: translateY(-2px);
}

.btn-whatsapp svg {
    width: 20px;
    height: 20px;
}

.btn-full {
    width: 100%;
}

/* --------------------------------------------------------------------------
   HEADER
   -------------------------------------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-header);
    padding: var(--space-4) 0;
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-3) 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-blue-primary);
    transition: width var(--transition-base);
}

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

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

.nav-link-cta {
    background: var(--color-blue-subtle);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    color: var(--color-blue-primary);
}

.nav-link-cta::after {
    display: none;
}

.nav-link-cta:hover {
    background: var(--color-blue-primary);
    color: white;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    width: 32px;
    height: 32px;
    position: relative;
    z-index: 101;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    position: relative;
    transition: background var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    transition: transform var(--transition-base);
}

.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }

.menu-toggle.active .hamburger {
    background: transparent;
}

.menu-toggle.active .hamburger::before {
    transform: translateY(8px) rotate(45deg);
}

.menu-toggle.active .hamburger::after {
    transform: translateY(-8px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   HERO SECTION
   -------------------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-24) 0;
    overflow: hidden;
    background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150%;
    height: 100%;
    background: radial-gradient(ellipse at center top, var(--color-blue-glow) 0%, transparent 60%);
    opacity: 0.3;
    pointer-events: none;
}

.particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: var(--z-base);
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-12);
    align-items: center;
}

.hero-main {
    text-align: left;
}

.hero-avatar {
    position: relative;
    width: 140px;
    height: 140px;
    margin-bottom: var(--space-8);
}

.avatar-img {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 3px solid var(--color-blue-primary);
    position: relative;
    z-index: 2;
}

.avatar-glow {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border-radius: var(--radius-full);
    background: var(--color-blue-primary);
    filter: blur(30px);
    opacity: 0.4;
    animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.05); }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-6);
}

.hero-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin-bottom: var(--space-8);
}

.hero-ctas {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

/* Availability Card */
.hero-aside {
    align-self: start;
}

.availability-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    backdrop-filter: blur(10px);
}

.availability-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-success);
    margin-bottom: var(--space-4);
}

.pulse-dot {
    width: 10px;
    height: 10px;
    background: var(--color-success);
    border-radius: var(--radius-full);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.availability-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.availability-list li {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-text-muted);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-gray-500), transparent);
    animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(10px); opacity: 0.5; }
}

/* --------------------------------------------------------------------------
   SECTIONS - GENERAL
   -------------------------------------------------------------------------- */
.section {
    padding: var(--space-24) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-label {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-blue-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-4);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* --------------------------------------------------------------------------
   SOBRE SECTION
   -------------------------------------------------------------------------- */
.section-sobre {
    background: var(--color-bg-secondary);
}

.sobre-grid {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: var(--space-16);
    align-items: start;
    margin-bottom: var(--space-16);
}

.sobre-image {
    position: relative;
}

.sobre-photo {
    border-radius: var(--radius-xl);
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
}

.sobre-image-decoration {
    position: absolute;
    top: -20px;
    left: -20px;
    right: 20px;
    bottom: 20px;
    border: 2px solid var(--color-blue-primary);
    border-radius: var(--radius-xl);
    z-index: -1;
    opacity: 0.3;
}

.sobre-content .section-label {
    margin-bottom: var(--space-3);
}

.sobre-content .section-title {
    text-align: left;
    margin-bottom: var(--space-6);
}

.sobre-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

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

/* Princípios */
.principios-title {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    text-align: center;
    margin-bottom: var(--space-8);
}

.principios-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.principio-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    text-align: center;
    transition: all var(--transition-base);
}

.principio-card:hover {
    border-color: var(--color-blue-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.principio-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-4);
    color: var(--color-blue-primary);
}

.principio-icon svg {
    width: 100%;
    height: 100%;
}

.principio-card h4 {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    margin-bottom: var(--space-2);
}

.principio-card p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* --------------------------------------------------------------------------
   ATUAÇÃO / SERVIÇOS SECTION
   -------------------------------------------------------------------------- */
.servicos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

.servico-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--transition-base);
}

.servico-card:hover {
    border-color: var(--color-blue-primary);
    background: var(--color-bg-card-hover);
    transform: translateY(-4px);
}

.servico-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-6);
    color: var(--color-blue-primary);
}

.servico-icon svg {
    width: 100%;
    height: 100%;
}

.servico-card h3 {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    margin-bottom: var(--space-3);
}

.servico-card p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.atuacao-cta {
    text-align: center;
}

.atuacao-cta p {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

/* --------------------------------------------------------------------------
   PROJETOS SECTION
   -------------------------------------------------------------------------- */
.section-projetos {
    background: var(--color-bg-secondary);
}

.projetos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.projeto-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
}

.projeto-card:hover {
    border-color: var(--color-blue-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.projeto-tag {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-blue-primary);
    background: var(--color-blue-subtle);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
    width: fit-content;
}

.projeto-nome {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    margin-bottom: var(--space-3);
}

.projeto-desc {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    flex-grow: 1;
    margin-bottom: var(--space-6);
}

.btn-saiba-mais {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-blue-primary);
    padding: var(--space-3) var(--space-5);
    border: 1px solid var(--color-blue-primary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    background: transparent;
}

.btn-saiba-mais:hover {
    background: var(--color-blue-primary);
    color: white;
}

/* --------------------------------------------------------------------------
   CASES SECTION
   -------------------------------------------------------------------------- */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

.case-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    display: grid;
    grid-template-columns: 48px 1fr auto;
    gap: var(--space-6);
    align-items: start;
    transition: all var(--transition-base);
}

.case-card:hover {
    border-color: var(--color-border-hover);
    background: var(--color-bg-card-hover);
}

.case-icon {
    width: 48px;
    height: 48px;
    color: var(--color-blue-primary);
    background: var(--color-blue-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-3);
}

.case-icon svg {
    width: 100%;
    height: 100%;
}

.case-label {
    display: block;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-1);
}

.case-content h3 {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    margin-bottom: var(--space-3);
}

.case-challenge,
.case-approach {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.case-result {
    text-align: right;
    padding-left: var(--space-6);
    border-left: 1px solid var(--color-border);
}

.case-number {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-blue-primary);
    line-height: 1;
}

.case-metric {
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
}

/* --------------------------------------------------------------------------
   CONTEÚDOS SECTION
   -------------------------------------------------------------------------- */
.section-conteudos {
    background: var(--color-bg-secondary);
}

.conteudos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-16);
}

.conteudo-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--transition-base);
}

.conteudo-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
}

.conteudo-tag {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.conteudo-card h3 {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    margin-bottom: var(--space-3);
    line-height: 1.3;
}

.conteudo-card p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-6);
}

.conteudo-link {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-blue-primary);
    transition: color var(--transition-fast);
}

.conteudo-link:hover {
    color: #60a5fa;
}

/* Newsletter */
.newsletter {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-10);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-8);
}

.newsletter-content {
    flex: 1;
    min-width: 280px;
}

.newsletter-content h3 {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    margin-bottom: var(--space-2);
}

.newsletter-content p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.newsletter-form {
    display: flex;
    gap: var(--space-3);
    flex: 1;
    min-width: 280px;
}

.newsletter-form input {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    transition: border-color var(--transition-fast);
}

.newsletter-form input::placeholder {
    color: var(--color-text-muted);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--color-blue-primary);
}

.newsletter-feedback {
    width: 100%;
    font-size: var(--text-sm);
    margin-top: var(--space-2);
}

.newsletter-feedback.success {
    color: var(--color-success);
}

.newsletter-feedback.error {
    color: var(--color-error);
}

/* --------------------------------------------------------------------------
   CONTATO SECTION
   -------------------------------------------------------------------------- */
.contato-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: var(--space-12);
    align-items: start;
}

.contato-form {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-10);
}

.form-group {
    margin-bottom: var(--space-6);
}

.form-group label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    margin-bottom: var(--space-2);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-4);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    transition: border-color var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-blue-primary);
}

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

.error-message {
    display: block;
    font-size: var(--text-xs);
    color: var(--color-error);
    margin-top: var(--space-1);
    min-height: 1rem;
}

/* Contato Info */
.contato-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    margin-bottom: var(--space-6);
}

.contato-card h3 {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    margin-bottom: var(--space-6);
}

.contato-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4) 0;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    transition: color var(--transition-fast);
}

.contato-item:last-child {
    border-bottom: none;
}

.contato-item:hover {
    color: var(--color-blue-primary);
}

.contato-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.contato-cta {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    text-align: center;
}

.contato-cta p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--space-12) 0;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-logo {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
}

.footer-tagline {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.footer-links {
    display: flex;
    gap: var(--space-6);
}

.footer-links a {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.footer-copy {
    width: 100%;
    text-align: center;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}

/* --------------------------------------------------------------------------
   MODAL
   -------------------------------------------------------------------------- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-6);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    transform: translateY(20px);
    transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 32px;
    height: 32px;
    font-size: var(--text-2xl);
    color: var(--color-text-secondary);
    background: var(--color-bg-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    color: var(--color-text-primary);
    background: var(--color-gray-700);
}

.modal-content {
    padding: var(--space-10);
}

.modal-content h2 {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    margin-bottom: var(--space-4);
}

.modal-content .modal-tag {
    display: inline-block;
    font-size: var(--text-sm);
    color: var(--color-blue-primary);
    margin-bottom: var(--space-6);
}

.modal-content p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

/* --------------------------------------------------------------------------
   ANIMATIONS
   -------------------------------------------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

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

/* Stagger delay for grid items */
.reveal:nth-child(1) { transition-delay: 0.1s; }
.reveal:nth-child(2) { transition-delay: 0.2s; }
.reveal:nth-child(3) { transition-delay: 0.3s; }
.reveal:nth-child(4) { transition-delay: 0.4s; }
.reveal:nth-child(5) { transition-delay: 0.5s; }
.reveal:nth-child(6) { transition-delay: 0.6s; }

/* --------------------------------------------------------------------------
   RESPONSIVE - TABLET
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-main {
        text-align: center;
    }
    
    .hero-avatar {
        margin: 0 auto var(--space-8);
    }
    
    .hero-subtitle {
        margin: 0 auto var(--space-8);
    }
    
    .hero-ctas {
        justify-content: center;
    }
    
    .hero-aside {
        display: none;
    }
    
    .sobre-grid {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }
    
    .sobre-image {
        max-width: 350px;
        margin: 0 auto;
    }
    
    .sobre-content .section-title {
        text-align: center;
    }
    
    .principios-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .servicos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .projetos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .case-card {
        grid-template-columns: 1fr;
    }
    
    .case-result {
        border-left: none;
        border-top: 1px solid var(--color-border);
        padding-left: 0;
        padding-top: var(--space-6);
        text-align: left;
    }
    
    .conteudos-grid {
        grid-template-columns: 1fr;
    }
    
    .contato-grid {
        grid-template-columns: 1fr;
    }
}

/* --------------------------------------------------------------------------
   RESPONSIVE - MOBILE
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-bg-secondary);
        border-left: 1px solid var(--color-border);
        padding: var(--space-20) var(--space-8);
        transition: right var(--transition-base);
        z-index: 100;
    }
    
    .nav.active {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-6);
    }
    
    .nav-link {
        font-size: var(--text-lg);
    }
    
    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .hero {
        padding-top: 120px;
    }
    
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .hero-ctas {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .principios-grid {
        grid-template-columns: 1fr;
    }
    
    .servicos-grid {
        grid-template-columns: 1fr;
    }
    
    .projetos-grid {
        grid-template-columns: 1fr;
    }
    
    .newsletter {
        flex-direction: column;
        text-align: center;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* --------------------------------------------------------------------------
   ACCESSIBILITY
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus states */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-blue-primary);
    outline-offset: 2px;
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    background: var(--color-blue-primary);
    color: white;
    padding: var(--space-4);
    z-index: 9999;
}

.skip-link:focus {
    top: 0;
}