/*
 * SAMA Engenharia - Stylesheet Principal
 * Tecnologias: HTML5, CSS3, Bootstrap 5, Material Design 2
 * Paleta: #005A65 (primária), #4A4A49 (texto), branco (fundo)
 */

/* ========================================
   VARIÁVEIS GLOBAIS
   ======================================== */
:root {
    /* Cores da Marca */
    --sama-primary: #005A65;
    --sama-primary-dark: #004A54;
    --sama-primary-light: #007A87;
    --sama-text: #4A4A49;
    --sama-text-light: #6A6A69;
    --sama-white: #FFFFFF;
    --sama-gray-100: #F8F9FA;
    --sama-gray-200: #E9ECEF;
    --sama-gray-300: #DEE2E6;
    
    /* Material Design Elevation */
    --shadow-1: 0 2px 1px -1px rgba(0,0,0,0.2), 0 1px 1px 0 rgba(0,0,0,0.14), 0 1px 3px 0 rgba(0,0,0,0.12);
    --shadow-2: 0 3px 1px -2px rgba(0,0,0,0.2), 0 2px 2px 0 rgba(0,0,0,0.14), 0 1px 5px 0 rgba(0,0,0,0.12);
    --shadow-4: 0 2px 4px -1px rgba(0,0,0,0.2), 0 4px 5px 0 rgba(0,0,0,0.14), 0 1px 10px 0 rgba(0,0,0,0.12);
    --shadow-8: 0 5px 5px -3px rgba(0,0,0,0.2), 0 8px 10px 1px rgba(0,0,0,0.14), 0 3px 14px 2px rgba(0,0,0,0.12);
    
    /* Tipografia */
    --font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-bold: 700;
    
    /* Espaçamento */
    --section-padding: 100px;
    --section-padding-mobile: 60px;
    
    /* Transições */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius Material */
    --radius-small: 4px;
    --radius-medium: 8px;
    --radius-large: 16px;
}

/* ========================================
   RESET E BASE
   ======================================== */
*, *::before, *::after {
    box-sizing: border-box;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-medium);
    line-height: 1.3;
    color: var(--sama-text);
}

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

a:hover {
    color: var(--sama-primary-dark);
}

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

/* ========================================
   UTILITÁRIOS
   ======================================== */
.text-primary {
    color: var(--sama-primary) !important;
}

.bg-primary {
    background-color: var(--sama-primary) !important;
}

.btn-primary {
    background-color: var(--sama-primary);
    border-color: var(--sama-primary);
    color: var(--sama-white);
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 12px 28px;
    border-radius: var(--radius-small);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-2);
}

.btn-primary:hover {
    background-color: var(--sama-primary-dark);
    border-color: var(--sama-primary-dark);
    box-shadow: var(--shadow-4);
    transform: translateY(-2px);
}

.btn-outline-primary {
    color: var(--sama-primary);
    border-color: var(--sama-primary);
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 12px 28px;
    border-radius: var(--radius-small);
    transition: all var(--transition-normal);
}

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

.btn-light {
    background-color: var(--sama-white);
    color: var(--sama-primary);
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 12px 28px;
    border-radius: var(--radius-small);
    box-shadow: var(--shadow-2);
    transition: all var(--transition-normal);
}

.btn-light:hover {
    background-color: var(--sama-gray-100);
    box-shadow: var(--shadow-4);
    transform: translateY(-2px);
}

/* ========================================
   NAVBAR
   ======================================== */
.navbar {
    padding: 16px 0;
    transition: all var(--transition-normal);
    z-index: 1030;
}

.navbar.scrolled {
    padding: 10px 0;
    box-shadow: var(--shadow-4) !important;
}

.navbar-brand {
    font-weight: var(--font-bold);
    font-size: 1.5rem;
}

.brand-text {
    color: var(--sama-primary);
    font-weight: var(--font-bold);
    letter-spacing: 1px;
}

.navbar-nav .nav-link {
    color: var(--sama-text);
    font-weight: var(--font-medium);
    padding: 8px 16px;
    position: relative;
    transition: color var(--transition-fast);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--sama-primary);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 16px;
    right: 16px;
    height: 2px;
    background-color: var(--sama-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    transform: scaleX(1);
}

.btn-cta-nav {
    padding: 10px 20px !important;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
}

.navbar-toggler {
    border: none;
    padding: 8px;
    color: var(--sama-primary);
}

.navbar-toggler:focus {
    box-shadow: none;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero-section {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.95) 0%,
        rgba(255, 255, 255, 0.85) 50%,
        rgba(255, 255, 255, 0.75) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    color: var(--sama-primary);
    font-weight: var(--font-bold);
    letter-spacing: -0.5px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
    color: var(--sama-text);
    font-weight: var(--font-regular);
    font-size: 1.35rem;
}

.hero-quote {
    background: rgba(0, 90, 101, 0.08);
    padding: 24px 32px;
    border-left: 4px solid var(--sama-primary);
    border-radius: 0 var(--radius-medium) var(--radius-medium) 0;
    margin: 32px 0;
}

.quote-text {
    font-style: italic;
    font-size: 1.15rem;
    color: var(--sama-text);
    margin: 0;
    position: relative;
}

.quote-icon {
    color: var(--sama-primary);
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    line-height: 1;
}

.hero-description {
    color: var(--sama-text-light);
    font-size: 1.1rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta .btn {
    min-width: 260px;
    justify-content: center;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--sama-primary);
    color: var(--sama-white);
    border-radius: 50%;
    box-shadow: var(--shadow-4);
    animation: bounce 2s infinite;
    transition: all var(--transition-normal);
}

.scroll-link:hover {
    background: var(--sama-primary-dark);
    color: var(--sama-white);
    transform: scale(1.1);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* ========================================
   SECTIONS GERAIS
   ======================================== */
.section {
    padding: var(--section-padding) 0;
}

.section-tag {
    display: inline-block;
    color: var(--sama-primary);
    font-weight: var(--font-medium);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
    position: relative;
    padding-left: 40px;
}

.section-tag::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 2px;
    background-color: var(--sama-primary);
}

.section-title {
    font-size: 2.5rem;
    font-weight: var(--font-bold);
    color: var(--sama-text);
    margin-bottom: 24px;
}

.section-subtitle {
    color: var(--sama-text-light);
    font-size: 1.1rem;
}

/* ========================================
   SOBRE SECTION
   ======================================== */
.sobre-section {
    background-color: var(--sama-white);
}

.sobre-image {
    position: relative;
}

.sobre-image img {
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-8);
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--sama-primary);
    color: var(--sama-white);
    padding: 20px 30px;
    border-radius: var(--radius-medium);
    box-shadow: var(--shadow-4);
    text-align: center;
}

.badge-number {
    display: block;
    font-size: 2rem;
    font-weight: var(--font-bold);
    line-height: 1;
}

.badge-text {
    display: block;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sobre-list {
    margin-top: 24px;
}

.sobre-list li {
    font-size: 1.05rem;
}

.sobre-list .material-icons {
    font-size: 24px;
}

/* ========================================
   SERVIÇOS SECTION
   ======================================== */
.servicos-section {
    background-color: var(--sama-gray-100);
}

.service-card {
    border-radius: var(--radius-medium);
    transition: all var(--transition-normal);
    height: 100%;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-8) !important;
}

.service-icon {
    width: 64px;
    height: 64px;
    background: rgba(0, 90, 101, 0.1);
    border-radius: var(--radius-medium);
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-icon .material-icons {
    font-size: 32px;
    color: var(--sama-primary);
}

.service-title {
    color: var(--sama-text);
    font-weight: var(--font-medium);
}

.service-text {
    font-size: 0.95rem;
    line-height: 1.7;
}

.service-tags .badge {
    font-weight: var(--font-regular);
    font-size: 0.75rem;
    padding: 6px 12px;
    border-radius: 20px;
    margin-right: 8px;
    margin-bottom: 8px;
}

.service-link {
    color: var(--sama-primary);
    font-weight: var(--font-medium);
    display: inline-flex;
    align-items: center;
    transition: all var(--transition-fast);
}

.service-link .material-icons {
    font-size: 18px;
    margin-left: 4px;
    transition: transform var(--transition-fast);
}

.service-link:hover {
    color: var(--sama-primary-dark);
}

.service-link:hover .material-icons {
    transform: translateX(4px);
}

/* ========================================
   DIFERENCIAIS SECTION
   ======================================== */
.diferenciais-section {
    background-color: var(--sama-white);
}

.diferencial-item {
    background: var(--sama-white);
    border-radius: var(--radius-medium);
    box-shadow: var(--shadow-2);
    transition: all var(--transition-normal);
    height: 100%;
}

.diferencial-item:hover {
    box-shadow: var(--shadow-8);
    transform: translateY(-4px);
}

.diferencial-icon {
    width: 80px;
    height: 80px;
    background: var(--sama-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: var(--shadow-4);
}

.diferencial-icon .material-icons {
    font-size: 40px;
    color: var(--sama-white);
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section {
    background: rgba(56, 56, 56, 0.1) !important;
    padding: 80px 0;
}

.cta-title {
    font-size: 2rem;
    font-weight: var(--font-bold);
    color: rgba(56, 56, 56, 0.7);
}

.cta-text {
    color: rgba(56, 56, 56, 0.7);
}

/* ========================================
   CONTATO SECTION
   ======================================== */
.contato-section {
    background-color: var(--sama-gray-100);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(0, 90, 101, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon .material-icons {
    font-size: 24px;
    color: var(--sama-primary);
}

.contact-text h4 {
    color: var(--sama-text);
    font-weight: var(--font-medium);
}

.contact-text a {
    color: var(--sama-text-light);
    transition: color var(--transition-fast);
}

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

.contact-form {
    border-radius: var(--radius-large);
}

.contact-form .form-floating > .form-control,
.contact-form .form-floating > .form-select {
    border: 1px solid var(--sama-gray-300);
    border-radius: var(--radius-small);
}

.contact-form .form-floating > .form-control:focus,
.contact-form .form-floating > .form-select:focus {
    border-color: var(--sama-primary);
    box-shadow: 0 0 0 0.2rem rgba(0, 90, 101, 0.25);
}

.contact-form .form-floating > label {
    color: var(--sama-text-light);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background-color: #F2FDEF !important;
    padding: 80px 0 30px;
}

.footer-brand {
    color: var(--sama-white);
}

.footer-text {
    color: rgba(56, 56, 56, 0.7);
    line-height: 1.8;
}

.footer-title {
    color: rgba(56, 56, 56, 0.7);
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.footer-links a {
    color: rgba(56, 56, 56, 0.7);
    transition: all var(--transition-fast);
    display: inline-block;
}

.footer-links a:hover {
    color: rgba(128, 128, 128, 0.7);
    transform: translateX(4px);
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    color: rgba(56, 56, 56, 0.7);
}

.footer-contact .material-icons {
    font-size: 20px;
    margin-right: 12px;
    color: rgba(56, 56, 56, 0.7);
    flex-shrink: 0;
}

.footer-contact a {
    color: rgba(56, 56, 56, 0.7);
}

.footer-contact a:hover {
    color: rgba(128, 128, 128, 0.7);
}

.footer-divider {
    border-color: rgba(56, 56, 56, 0.7);
}

.footer-copyright {
    color: rgba(56, 56, 56, 0.7);
    font-size: 0.875rem;
}

.footer-tagline {
    color: rgba(56, 56, 56, 0.7);
    font-size: 0.875rem;
}

/* ========================================
   RIPPLE EFFECT (Material Design)
   ======================================== */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-ripple:active::after {
    width: 300px;
    height: 300px;
}

/* ========================================
   TOAST
   ======================================== */
.toast-container {
    z-index: 1060;
}

.toast {
    border: none;
    box-shadow: var(--shadow-8);
}

/* ========================================
   RESPONSIVIDADE
   ======================================== */
@media (max-width: 991.98px) {
    .section {
        padding: var(--section-padding-mobile) 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.15rem;
    }
    
    .hero-cta .btn {
        min-width: 100%;
        margin-bottom: 12px;
    }
    
    .experience-badge {
        position: relative;
        bottom: auto;
        right: auto;
        margin-top: 20px;
        display: inline-block;
    }
    
    .cta-title {
        font-size: 1.75rem;
    }
    
    .navbar-collapse {
        background: var(--sama-white);
        padding: 20px;
        border-radius: var(--radius-medium);
        box-shadow: var(--shadow-4);
        margin-top: 16px;
    }
    
    .btn-cta-nav {
        margin-top: 12px;
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 767.98px) {
    .hero-section {
        min-height: auto;
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-quote {
        padding: 16px 20px;
    }
    
    .quote-text {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .cta-title {
        font-size: 1.5rem;
    }
    
    .scroll-indicator {
        display: none;
    }
}

@media (max-width: 575.98px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .diferencial-icon {
        width: 60px;
        height: 60px;
    }
    
    .diferencial-icon .material-icons {
        font-size: 30px;
    }
}

/* ========================================
   ANIMAÇÕES
   ======================================== */
[data-aos] {
    pointer-events: none;
}

[data-aos].aos-animate {
    pointer-events: auto;
}

/* Animação de entrada suave */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Animação de pulso para CTA */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 90, 101, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(0, 90, 101, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(0, 90, 101, 0);
    }
}

.pulse-animation {
    animation: pulse 2s infinite;
}

/* ========================================
   SCROLLBAR PERSONALIZADA
   ======================================== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--sama-gray-100);
}

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

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

/* ========================================
   SELEÇÃO DE TEXTO
   ======================================== */
::selection {
    background: var(--sama-primary);
    color: var(--sama-white);
}

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

/* ===== BOTÃO FLUTUANTE WHATSAPP ===== */

  #whatsapp-float {
    position: fixed;
    right: 20px;
    bottom: 90px; /* Ajuste conforme altura do botão já existente */
    z-index: 9999;
    display: none;
    animation: fadeInUp 0.4s ease;
  }

  #whatsapp-float a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    text-decoration: none;
    transition: transform 0.3s ease;
  }

  #whatsapp-float a:hover {
    transform: scale(1.1);
  }

  #whatsapp-float svg {
    width: 30px;
    height: 30px;
    fill: #fff;
  }

  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }