/* ========================================
   ASTRON MARKETING - Premium Dark Theme
   ======================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-bg-primary: #0d0d0d;
    --color-bg-secondary: #1a1a1a;
    --color-bg-tertiary: #222222;
    --color-bg-card: #161616;
    --color-bg-card-hover: #1e1e1e;

    --color-text-primary: #ffffff;
    --color-text-secondary: #a0a0a0;
    --color-text-muted: #666666;

    --color-accent: #ffffff;
    --color-accent-hover: #e0e0e0;

    --gradient-dark: linear-gradient(135deg, #0d0d0d 0%, #1a1a1a 50%, #0d0d0d 100%);
    --gradient-card: linear-gradient(145deg, #1a1a1a 0%, #0d0d0d 100%);
    --gradient-hero: linear-gradient(180deg, #0d0d0d 0%, #111111 50%, #0d0d0d 100%);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    --spacing-3xl: 8rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50%;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);

    /* Layout */
    --container-max: 1200px;
    --header-height: 80px;
}

/* ========================================
   Reset & Base Styles
   ======================================== */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

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

ul {
    list-style: none;
}

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

/* ========================================
   Utility Classes
   ======================================== */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

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

.section-tag {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

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

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

.section-header .section-subtitle {
    margin: 0 auto;
}

.highlight {
    color: var(--color-text-primary);
    position: relative;
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-text-primary);
    color: var(--color-bg-primary);
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn-icon {
    width: 20px;
    height: 20px;
}

.btn-lg .btn-icon {
    width: 24px;
    height: 24px;
}

/* ========================================
   Header
   ======================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    z-index: 1000;
    transition: var(--transition-base);
}

.header.scrolled {
    background-color: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

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

.logo-placeholder {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 800;
    letter-spacing: 2px;
}

.logo-subtext {
    font-size: var(--font-size-xs);
    font-weight: 400;
    letter-spacing: 4px;
    color: var(--color-text-secondary);
}

/* Navigation */
.nav-list {
    display: flex;
    gap: var(--spacing-xl);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: var(--transition-base);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-text-primary);
    transition: var(--transition-base);
}

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

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

.header-cta {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: var(--transition-base);
}

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

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

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

/* ========================================
   Hero Section
   ======================================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: var(--header-height);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: -1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.02) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-xl);
}

.hero-content {
    max-width: 900px;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-badge {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.hero-badge span {
    color: var(--color-text-primary);
    font-weight: 600;
}

/* ========================================
   About Section
   ======================================== */

.about {
    background-color: var(--color-bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-text {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

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

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

.highlight-icon {
    width: 24px;
    height: 24px;
    color: var(--color-text-primary);
}

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

/* Profile Card */
.profile-card {
    background: var(--gradient-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
}

.profile-image {
    width: 150px;
    height: 150px;
    margin: 0 auto var(--spacing-lg);
    border-radius: var(--radius-full);
    overflow: hidden;
    background-color: var(--color-bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
}

.profile-placeholder svg {
    width: 60%;
    height: 60%;
}

.profile-name {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.profile-role {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.profile-age {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ========================================
   Services Section
   ======================================== */

.services {
    background-color: var(--color-bg-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    background-color: var(--color-bg-card-hover);
    border-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}

.service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

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

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.service-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.service-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.service-features {
    margin-bottom: var(--spacing-md);
}

.service-features li {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    padding: var(--spacing-xs) 0;
}

.service-price {
    margin-bottom: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.price-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    display: block;
}

.price-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

.price-period {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.service-card .btn {
    width: 100%;
    margin-top: auto;
}

/* ========================================
   Differentials Section
   ======================================== */

.differentials {
    background-color: var(--color-bg-secondary);
}

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

.differential-item {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.differential-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.differential-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-md);
    color: var(--color-text-primary);
}

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

.differential-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.differential-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ========================================
   CTA Section
   ======================================== */

.cta-section {
    position: relative;
    text-align: center;
    padding: var(--spacing-3xl) 0;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 50%, var(--color-bg-primary) 100%);
    z-index: -1;
}

.cta-bg::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.03) 0%, transparent 70%);
    border-radius: 50%;
}

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

.cta-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.cta-text {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background-color: var(--color-bg-primary);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-brand .logo {
    margin-bottom: var(--spacing-md);
}

.footer-company {
    font-size: var(--font-size-base);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.footer-cnpj {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.footer-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

.footer-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

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

.footer-link svg {
    flex-shrink: 0;
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ========================================
   Animations
   ======================================== */

.animate-fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ========================================
   Responsive Design - Enhanced for All Devices
   ======================================== */

/* Profile Image Styling */
.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    border-radius: var(--radius-full);
}

/* Large Desktop (1440px+) */
@media (min-width: 1440px) {
    .container {
        max-width: 1320px;
    }

    :root {
        --font-size-5xl: 4rem;
    }
}

/* Desktop (1024px - 1440px) */
@media (max-width: 1440px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* Tablet Landscape / Small Desktop (1024px) */
@media (max-width: 1024px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .differentials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid {
        gap: var(--spacing-xl);
    }
}

/* Tablet Portrait (768px - 1024px) */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
        --spacing-3xl: 5rem;
        --spacing-2xl: 3rem;
        --header-height: 70px;
    }

    /* Mobile Navigation */
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: rgba(13, 13, 13, 0.98);
        backdrop-filter: blur(10px);
        padding: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-base);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        max-height: calc(100vh - var(--header-height));
        overflow-y: auto;
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: center;
    }

    .nav-link {
        font-size: var(--font-size-lg);
        padding: var(--spacing-sm) 0;
    }

    .header-cta {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
        z-index: 1001;
    }

    /* Hero adjustments */
    .hero {
        min-height: auto;
        padding-top: calc(var(--header-height) + var(--spacing-2xl));
        padding-bottom: var(--spacing-2xl);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .hero-badge {
        max-width: 100%;
        text-align: center;
    }

    /* About section */
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .about-profile {
        order: -1;
    }

    .about-content {
        text-align: center;
    }

    .about-highlights {
        align-items: center;
    }

    /* Profile */
    .profile-image {
        width: 180px;
        height: 180px;
    }

    /* Services */
    .services-grid {
        gap: var(--spacing-md);
    }

    /* Differentials */
    .differentials-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .differential-item {
        padding: var(--spacing-lg);
    }

    /* CTA */
    .cta-title {
        font-size: var(--font-size-2xl);
    }

    /* Footer */
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-xl);
    }

    .footer-contact {
        text-align: center;
    }

    .footer-link {
        justify-content: center;
    }
}

/* Mobile Large (480px - 768px) */
@media (max-width: 480px) {
    :root {
        --spacing-lg: 1.25rem;
        --spacing-xl: 2rem;
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.25rem;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    /* Buttons */
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }

    .btn-lg {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-base);
        width: 100%;
    }

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

    /* Hero */
    .hero-badge {
        padding: var(--spacing-sm);
        font-size: var(--font-size-xs);
    }

    .hero-title {
        font-size: 1.75rem;
    }

    /* Profile */
    .profile-card {
        padding: var(--spacing-lg);
    }

    .profile-image {
        width: 140px;
        height: 140px;
    }

    .profile-name {
        font-size: var(--font-size-xl);
    }

    /* Services */
    .service-card {
        padding: var(--spacing-md);
    }

    .service-title {
        font-size: var(--font-size-lg);
    }

    .service-icon {
        width: 40px;
        height: 40px;
    }

    .price-value {
        font-size: var(--font-size-xl);
    }

    /* Sections */
    .section-title {
        font-size: var(--font-size-2xl);
    }
}

/* Mobile Small (360px and below) */
@media (max-width: 360px) {
    :root {
        --font-size-base: 0.9375rem;
        --spacing-md: 1rem;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .profile-image {
        width: 120px;
        height: 120px;
    }

    .logo-text {
        font-size: var(--font-size-lg);
    }
}

/* Touch Device Enhancements */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 48px;
    }

    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .service-card:hover {
        transform: none;
    }

    .differential-item:hover {
        background-color: rgba(255, 255, 255, 0.02);
    }
}

/* Landscape Mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: var(--spacing-xl) 0;
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }
}

/* Print Styles */
@media print {

    .header,
    .mobile-menu-btn,
    .btn {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .section {
        page-break-inside: avoid;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --color-text-secondary: #d0d0d0;
        --color-text-muted: #a0a0a0;
    }

    .btn-outline {
        border-width: 2px;
    }
}

/* Reduced Motion */
@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;
    }
}