/* Custom Styles for Lithothamnium Landing Page */

/* CSS Reset & Variables */
:root {
    --bg-primary: #070b19;
    --bg-secondary: #0c122c;
    --bg-card: rgba(255, 255, 255, 0.03);
    --border-glass: rgba(255, 255, 255, 0.08);
    
    --accent-teal: #06d6a0;
    --accent-cyan: #48cae4;
    --accent-gold: #ffd166;
    --accent-gold-hover: #ffc233;
    
    --text-primary: #f8f9fa;
    --text-secondary: #a5aed1;
    --text-muted: #6c757d;
    
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --shadow-premium: 0 15px 35px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 25px rgba(6, 214, 160, 0.2);
}

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

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

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    color: #ffffff;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 3.5vw, 2.5rem);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 1rem;
    padding: 12px 28px;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition-smooth);
    border: none;
    text-align: center;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-gold) 0%, #ffa200 100%);
    color: #070b19;
    box-shadow: 0 4px 15px rgba(255, 209, 102, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-gold-hover) 0%, #e69100 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 209, 102, 0.4);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.08);
    color: #ffffff;
    border: 1px solid var(--border-glass);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    border-color: #ffffff;
    background-color: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: rgba(7, 11, 25, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass);
    padding: 16px 0;
    transition: var(--transition-smooth);
}

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

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.logo:hover .logo-icon {
    transform: scale(1.1) rotate(-5deg);
}

.logo-icon {
    transition: var(--transition-smooth);
}

.logo-accent {
    color: var(--accent-teal);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a:not(.btn) {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.nav-links a:not(.btn):hover {
    color: var(--accent-teal);
}

/* Hero Section */
.hero-section {
    position: relative;
    padding: 160px 0 100px 0;
    min-height: 85vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at 10% 20%, rgba(12, 18, 44, 0.8) 0%, rgba(7, 11, 25, 1) 90%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(7, 11, 25, 0) 60%, rgba(7, 11, 25, 1) 100%);
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 650px;
}

.badge {
    display: inline-block;
    background-color: rgba(6, 214, 160, 0.15);
    color: var(--accent-teal);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid rgba(6, 214, 160, 0.25);
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 32px;
    color: var(--text-secondary);
}

.price-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 36px;
    max-width: 480px;
    position: relative;
    overflow: hidden;
}

.price-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--accent-gold);
}

.price-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 8px;
}

.price-tag {
    display: flex;
    align-items: baseline;
    gap: 6px;
    animation: priceBlink 2s infinite ease-in-out;
}

@keyframes priceBlink {
    0%, 100% {
        opacity: 1;
        filter: drop-shadow(0 0 2px rgba(255, 209, 102, 0.1));
    }
    50% {
        opacity: 0.65;
        filter: drop-shadow(0 0 12px rgba(255, 209, 102, 0.5));
    }
}

.price-tag .currency {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.price-tag .value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent-gold);
    line-height: 1;
}

.price-tag .unit {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.price-note {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 12px;
    margin-bottom: 0;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Image wrapper */
.hero-image-container {
    display: flex;
    justify-content: center;
    position: relative;
}

.image-wrapper {
    position: relative;
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-premium);
    border: 1px solid var(--border-glass);
}

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(1.1) brightness(0.95);
    transition: var(--transition-smooth);
}

.image-wrapper:hover .hero-img {
    transform: scale(1.05);
}

.glowing-orb {
    position: absolute;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(6, 214, 160, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
    bottom: -50px;
    right: -50px;
    pointer-events: none;
    border-radius: 50%;
}

/* Benefits Section */
.benefits-section {
    padding: 100px 0;
    background-color: var(--bg-secondary);
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px auto;
}

.section-header p {
    font-size: 1.1rem;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.benefit-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-glass);
    padding: 40px;
    border-radius: 16px;
    transition: var(--transition-smooth);
}

.benefit-card:hover {
    transform: translateY(-8px);
    border-color: rgba(6, 214, 160, 0.3);
    box-shadow: var(--shadow-glow);
}

.benefit-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background-color: rgba(6, 214, 160, 0.1);
    color: var(--accent-teal);
    margin-bottom: 24px;
}

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

/* Calculator Section */
.calculator-section {
    padding: 100px 0;
    background-color: var(--bg-primary);
}

.calculator-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.calculator-info {
    max-width: 500px;
}

.info-badges {
    display: flex;
    gap: 20px;
    margin-top: 32px;
}

.info-badge {
    flex: 1;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    padding: 16px;
    border-radius: 12px;
}

.badge-title {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.badge-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: #ffffff;
}

.calculator-card {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-premium);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 0.95rem;
    color: #ffffff;
}

.input-number-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-number-wrapper input {
    width: 100%;
    background-color: rgba(7, 11, 25, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 16px 20px;
    border-radius: 8px;
    font-family: var(--font-sans);
    font-size: 1.25rem;
    color: #ffffff;
    font-weight: 600;
    transition: var(--transition-smooth);
}

.input-number-wrapper input:focus {
    outline: none;
    border-color: var(--accent-teal);
    box-shadow: 0 0 10px rgba(6, 214, 160, 0.2);
}

.input-suffix {
    position: absolute;
    right: 20px;
    font-weight: 700;
    color: var(--text-secondary);
    pointer-events: none;
}

.results-box {
    background-color: rgba(7, 11, 25, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 28px;
}

.result-row {
    display: flex;
    justify-content: space-between;
    font-weight: 500;
    margin-bottom: 12px;
}

.result-row span:first-child {
    color: var(--text-secondary);
}

.result-row span:last-child {
    color: #ffffff;
}

.highlight-cyan {
    color: var(--accent-cyan) !important;
}

.divider {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin: 16px 0;
}

.total-row {
    margin-bottom: 0;
}

.total-row span:first-child {
    font-size: 1.1rem;
    color: #ffffff !important;
    font-weight: 700;
}

.total-row span:last-child {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--accent-teal) !important;
}

/* Contact Section */
.contact-section {
    padding: 100px 0;
    background-color: var(--bg-secondary);
}

.contact-container {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
    align-items: flex-start;
}

.contact-text {
    max-width: 500px;
}

.direct-email-card {
    display: flex;
    align-items: center;
    gap: 20px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-glass);
    padding: 24px;
    border-radius: 16px;
    margin-top: 40px;
}

.email-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(72, 202, 228, 0.1);
    color: var(--accent-cyan);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.direct-email-card span {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.email-link {
    font-size: 1.15rem;
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.email-link:hover {
    color: var(--accent-cyan);
}

.contact-form-wrapper {
    background: rgba(255, 255, 255, 0.015);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    padding: 48px;
    box-shadow: var(--shadow-premium);
}

.contact-form .form-group input,
.contact-form .form-group textarea {
    width: 100%;
    background-color: rgba(7, 11, 25, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.12);
    padding: 14px 18px;
    border-radius: 8px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: #ffffff;
    transition: var(--transition-smooth);
}

.contact-form .form-group input:focus,
.contact-form .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 10px rgba(72, 202, 228, 0.15);
}

.char-counter-wrapper {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: right;
    margin-top: 6px;
    opacity: 0.85;
    transition: var(--transition-smooth);
}

.split-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.contact-form .btn {
    margin-top: 16px;
    font-size: 1.05rem;
    padding: 16px 28px;
}

/* Form Submit Loading Effect */
.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: calc(50% - 10px);
    left: calc(50% - 10px);
    border: 2px solid #000;
    border-radius: 50%;
    border-right-color: transparent;
    animation: spinner 0.6s linear infinite;
}

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

/* Modal success */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(7, 11, 25, 0.85);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(8px);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    padding: 40px;
    border-radius: 24px;
    max-width: 480px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-premium);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

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

.modal-icon-success {
    width: 80px;
    height: 80px;
    background-color: rgba(6, 214, 160, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px auto;
}

.modal-card h2 {
    font-size: 1.8rem;
    margin-bottom: 12px;
}

.modal-card p {
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.modal-secondary-text {
    font-size: 0.9rem !important;
    color: var(--text-secondary);
    margin-bottom: 28px !important;
}

.modal-card .btn {
    min-width: 160px;
}

/* Footer */
.site-footer {
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-glass);
    padding: 60px 0;
    text-align: center;
}

.footer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer-brand {
    font-size: 1.4rem;
    font-weight: 800;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
}

.footer-copy {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.footer-disclaimer {
    font-size: 0.8rem;
    color: var(--text-muted);
    max-width: 600px;
    margin-bottom: 0;
}

/* Animation utilities */
.animate-fade-in {
    animation: fadeIn 1s ease-out forwards;
}

.animate-fade-in-right {
    animation: fadeInRight 1s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Responsive Media Queries */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-content {
        max-width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .price-container {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .calculator-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .calculator-info {
        max-width: 100%;
        text-align: center;
    }
    
    .info-badges {
        justify-content: center;
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .contact-text {
        max-width: 100%;
        text-align: center;
    }
    
    .direct-email-card {
        justify-content: center;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 768px) {
    .site-header {
        padding: 12px 0;
    }
    
    .nav-links {
        display: none; /* Em landing page minimalista, podemos esconder links extras no celular para foco na conversão */
    }
    
    .split-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .contact-form-wrapper {
        padding: 24px;
    }
    
    .calculator-card {
        padding: 24px;
    }
}