/* ===================================
   KRAFT DESIGN & CO. - STYLES
   =================================== */

/* ===================================
   1. CSS VARIABLES (Fácil de customizar)
   =================================== */
:root {
    /* Cores Primárias */
    --color-kraft: #F0EBE3;
    --color-graphite: #2D2D2D;
    
    /* Cores Secundárias */
    --color-clay: #A95C37;
    --color-moss: #4A5748;
    
    /* Cor de Destaque */
    --color-mustard: #D4A24E;
    
    /* Cores de Suporte */
    --color-white: #FFFFFF;
    --color-black: #1A1A1A;
    --color-gray-light: #F5F5F5;
    --color-gray: #666666;
    
    /* Tipografia */
    --font-display: 'DM Serif Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Espaçamentos */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    --spacing-3xl: 8rem;
    
    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Bordas */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 60px rgba(212, 162, 78, 0.15);
    
    /* Container */
    --container-max: 1200px;
    --container-padding: 1.5rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-graphite);
    background-color: var(--color-kraft);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* ===================================
   3. TYPOGRAPHY
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.2;
}

.section-tag {
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-clay);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(2.25rem, 5.5vw, 4rem);
    color: var(--color-graphite);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.02em;
    line-height: 1.15;
}

/* ===================================
   4. LAYOUT
   =================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

section {
    padding: var(--spacing-3xl) 0;
}

/* ===================================
   5. BUTTONS
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-mustard) 0%, #c4933a 100%);
    color: var(--color-graphite);
    border-color: transparent;
    box-shadow: 0 4px 14px rgba(212, 162, 78, 0.35);
}

.btn--primary:hover {
    background: var(--color-graphite);
    color: var(--color-kraft);
    box-shadow: 0 6px 20px rgba(45, 45, 45, 0.25);
    transform: translateY(-2px);
}

.btn--secondary {
    background-color: transparent;
    color: var(--color-graphite);
    border-color: var(--color-graphite);
}

.btn--secondary:hover {
    background-color: var(--color-graphite);
    color: var(--color-kraft);
    transform: translateY(-2px);
}

.btn--large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

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

/* ===================================
   6. HEADER
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(240, 235, 227, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all var(--transition-normal);
}

.header.scrolled {
    background-color: rgba(240, 235, 227, 0.95);
    box-shadow: 0 1px 0 rgba(45, 45, 45, 0.06);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-graphite);
}

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

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-graphite);
    position: relative;
}

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

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

.nav-link--cta {
    padding: 0.625rem 1.25rem;
    background-color: var(--color-mustard);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-graphite);
    transition: all var(--transition-normal);
}

/* ===================================
   7. HERO SECTION
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(165deg, var(--color-kraft) 0%, #e8e2d8 50%, var(--color-kraft) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(212, 162, 78, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(45, 45, 45, 0.08), transparent);
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-tag { animation: heroReveal 0.8s ease-out 0.1s both; }
.hero-title { animation: heroReveal 0.9s ease-out 0.2s both; }
.hero-subtitle { animation: heroReveal 0.9s ease-out 0.4s both; }
.hero-cta { animation: heroReveal 0.8s ease-out 0.55s both; }

@keyframes heroReveal {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-tag {
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-clay);
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

.hero-title {
    font-size: clamp(3rem, 7vw, 5.5rem);
    line-height: 1.05;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.02em;
}

.hero-title .highlight {
    color: var(--color-clay);
    position: relative;
    display: inline-block;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray);
    max-width: 520px;
    margin-bottom: var(--spacing-xl);
    line-height: 1.75;
    font-weight: 400;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.hero-visual {
    position: relative;
}

.hero-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 200px;
    height: 200px;
    background-color: var(--color-moss);
    border-radius: 50%;
    color: var(--color-kraft);
    text-align: center;
    animation: float 6s ease-in-out infinite;
}

.badge-number {
    font-family: var(--font-display);
    font-size: 3.5rem;
    line-height: 1;
}

.badge-text {
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--spacing-xs);
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* ===================================
   8. SOBRE SECTION
   =================================== */
.sobre {
    background-color: var(--color-white);
    position: relative;
}

.sobre::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(45, 45, 45, 0.06), transparent);
}

.sobre .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.sobre-text {
    font-size: 1.125rem;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

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

.sobre-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.feature {
    position: relative;
    padding-left: var(--spacing-xl);
    padding-top: var(--spacing-xs);
    transition: transform 0.3s ease;
}

.feature:hover {
    transform: translateX(8px);
}

.feature-number {
    position: absolute;
    left: 0;
    top: 0;
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--color-clay);
    opacity: 0.9;
}

.feature-title {
    font-family: var(--font-body);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.feature-text {
    font-size: 0.9375rem;
    color: var(--color-gray);
}

/* ===================================
   9. SERVIÇOS SECTION
   =================================== */
.servicos {
    background-color: var(--color-kraft);
}

.servicos-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.servicos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.servico-card {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(45, 45, 45, 0.06);
}

.servico-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(45, 45, 45, 0.04);
    border-color: rgba(169, 92, 55, 0.15);
}

.servico-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-kraft) 0%, #e5dfd5 100%);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    color: var(--color-clay);
    transition: all 0.3s ease;
}

.servico-card:hover .servico-icon {
    background: linear-gradient(135deg, var(--color-clay) 0%, #8f4a28 100%);
    color: var(--color-kraft);
}

.servico-icon svg {
    width: 28px;
    height: 28px;
}

.servico-title {
    font-family: var(--font-body);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.servico-text {
    font-size: 0.9375rem;
    color: var(--color-gray);
    line-height: 1.7;
}

/* ===================================
   10. PORTFOLIO SECTION
   =================================== */
.portfolio {
    background: linear-gradient(180deg, #252525 0%, var(--color-graphite) 50%, #1f1f1f 100%);
    color: var(--color-kraft);
    position: relative;
}

.portfolio .section-tag {
    color: var(--color-mustard);
}

.portfolio .section-title {
    color: var(--color-kraft);
}

.portfolio-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.portfolio-intro {
    font-size: 1.125rem;
    opacity: 0.85;
    max-width: 600px;
    margin: 0 auto;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    aspect-ratio: 4/3;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.portfolio-item:hover {
    transform: scale(1.02);
}

.portfolio-item--large {
    grid-column: span 2;
    grid-row: span 2;
    aspect-ratio: auto;
}

.portfolio-image {
    position: relative;
    width: 100%;
    height: 100%;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.08);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.2) 50%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--spacing-lg);
    opacity: 0.7;
    transition: opacity 0.4s ease, background 0.4s ease;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, transparent 60%);
}

.portfolio-category {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-mustard);
    margin-bottom: var(--spacing-xs);
}

.portfolio-title {
    font-size: 1.375rem;
    color: var(--color-kraft);
    font-weight: 400;
    letter-spacing: -0.01em;
}

/* Placeholder para imagens - remover quando tiver imagens reais */
.portfolio-image img[src*="projeto"] {
    background-color: var(--color-moss);
    opacity: 0.5;
}

/* ===================================
   11. STATS SECTION
   =================================== */
.stats {
    background-color: var(--color-clay);
    padding: var(--spacing-2xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    text-align: center;
}

.stat-item {
    color: var(--color-kraft);
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.9;
}

/* ===================================
   12. CTA SECTION
   =================================== */
.cta {
    background: linear-gradient(165deg, var(--color-kraft) 0%, #e8e2d8 100%);
    text-align: center;
    position: relative;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(45, 45, 45, 0.06), transparent);
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(2.25rem, 5.5vw, 4rem);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.cta-text {
    font-size: 1.125rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-xl);
}

.cta-contact {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.cta-info {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
}

.cta-info-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.cta-info-label {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gray);
}

.cta-info-value {
    font-size: 1rem;
    color: var(--color-graphite);
    transition: color var(--transition-fast);
}

.cta-info-value:hover {
    color: var(--color-clay);
}

/* ===================================
   13. FOOTER
   =================================== */
.footer {
    background-color: var(--color-graphite);
    color: var(--color-kraft);
    padding: var(--spacing-xl) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(240, 235, 227, 0.1);
    margin-bottom: var(--spacing-lg);
}

.footer-brand .logo-text {
    color: var(--color-kraft);
    margin-bottom: var(--spacing-xs);
}

.footer-tagline {
    font-size: 0.875rem;
    opacity: 0.7;
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(240, 235, 227, 0.1);
    border-radius: 50%;
    transition: all var(--transition-normal);
}

.social-link:hover {
    background-color: var(--color-mustard);
    color: var(--color-graphite);
}

.social-link svg {
    width: 18px;
    height: 18px;
}

.footer-bottom {
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.6;
}

/* ===================================
   14. RESPONSIVE
   =================================== */
@media (max-width: 1024px) {
    .servicos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .portfolio-item--large {
        grid-column: span 2;
        grid-row: span 1;
        aspect-ratio: 16/9;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-3xl: 5rem;
    }
    
    /* Header Mobile */
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background-color: var(--color-kraft);
        display: flex;
        align-items: center;
        justify-content: center;
        transition: right var(--transition-normal);
    }
    
    .nav.active {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: var(--spacing-xl);
        text-align: center;
    }
    
    .nav-link {
        font-size: 1.5rem;
    }
    
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    /* Hero Mobile */
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    /* Sobre Mobile */
    .sobre .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    /* Serviços Mobile */
    .servicos-grid {
        grid-template-columns: 1fr;
    }
    
    /* Portfolio Mobile */
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-item--large {
        grid-column: span 1;
    }
    
    .portfolio-overlay {
        opacity: 1;
    }
    
    /* Stats Mobile */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* CTA Mobile */
    .cta-info {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    /* Footer Mobile */
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .cta-contact {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   15. ANIMATIONS
   =================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}


/* ===================================
   16. UTILITIES
   =================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}