/* ===================================
   RESET E VARIÁVEIS
   =================================== */

:root {
    /* Paleta de Cores */
    --primary: #1a4d4d;
    --secondary: #d4a574;
    --accent: #c4484d;
    --background: #0a1a1a;
    --text: #f5f5f5;
    --dark-overlay: rgba(10, 26, 26, 0.85);

    /* Tipografia */
    --font-primary: 'Playfair Display', serif;
    --font-secondary: 'Inter', sans-serif;

    /* Sizing */
    --h1-size: 3.5rem;
    --h2-size: 2rem;
    --body-size: 1rem;

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

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

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

body {
    font-family: var(--font-secondary);
    font-size: var(--body-size);
    color: var(--text);
    background:
        radial-gradient(ellipse at 20% 30%, rgba(212, 165, 116, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(26, 77, 77, 0.1) 0%, transparent 50%),
        linear-gradient(135deg,
            #15494b 0%,
            #12403f 25%,
            #0e3535 50%,
            #0a2828 75%,
            #081f1f 100%
        );
    background-attachment: fixed;
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ===================================
   HEADER
   =================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(8, 31, 31, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(212, 165, 116, 0.2);
    padding: var(--spacing-sm) 0;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-title {
    font-family: var(--font-primary);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--secondary);
    letter-spacing: 0.05em;
}

.header-nav {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

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

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

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

/* ===================================
   HERO SECTION
   =================================== */

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-lg);
    position: relative;
    background: linear-gradient(135deg, rgba(21, 73, 75, 0.6) 0%, rgba(8, 31, 31, 0.8) 100%);
    animation: fadeIn 1s ease-out;
}

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

.hero-image-container {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 1200px;
    height: 70vh;
    overflow: hidden;
    z-index: 0;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    opacity: 0.9;
    mask-image:
        radial-gradient(ellipse 120% 100% at 50% 0%, black 0%, black 30%, transparent 85%),
        linear-gradient(
            to bottom,
            rgba(0, 0, 0, 1) 0%,
            rgba(0, 0, 0, 0.95) 30%,
            rgba(0, 0, 0, 0.7) 50%,
            rgba(0, 0, 0, 0.4) 70%,
            rgba(0, 0, 0, 0.1) 85%,
            rgba(0, 0, 0, 0) 100%
        );
    -webkit-mask-image:
        radial-gradient(ellipse 120% 100% at 50% 0%, black 0%, black 30%, transparent 85%),
        linear-gradient(
            to bottom,
            rgba(0, 0, 0, 1) 0%,
            rgba(0, 0, 0, 0.95) 30%,
            rgba(0, 0, 0, 0.7) 50%,
            rgba(0, 0, 0, 0.4) 70%,
            rgba(0, 0, 0, 0.1) 85%,
            rgba(0, 0, 0, 0) 100%
        );
    mask-composite: intersect;
    -webkit-mask-composite: source-in;
    animation: fadeInImage 1.5s ease-out;
}

@keyframes fadeInImage {
    from {
        opacity: 0;
        transform: scale(1.05);
    }
    to {
        opacity: 0.85;
        transform: scale(1);
    }
}

.hero-content {
    text-align: center;
    max-width: 800px;
    z-index: 1;
    position: relative;
    margin-top: 50vh;
}

.hero-symbol {
    margin-bottom: var(--spacing-md);
    animation: glow 3s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% {
        filter: drop-shadow(0 0 5px rgba(212, 165, 116, 0.3));
    }
    50% {
        filter: drop-shadow(0 0 15px rgba(212, 165, 116, 0.6));
    }
}

.hero-title {
    font-family: var(--font-primary);
    font-size: var(--h1-size);
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    color: var(--text);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    margin-bottom: var(--spacing-lg);
    color: var(--secondary);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    white-space: nowrap;
}

.hero-quote {
    font-family: var(--font-primary);
    font-size: 1.1rem;
    color: var(--secondary);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.hero-quote em {
    font-style: italic;
}

.hero-cta {
    background: transparent;
    border: 2px solid var(--secondary);
    color: var(--secondary);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: 4px;
}

.hero-cta:hover {
    background: var(--secondary);
    color: var(--background);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(212, 165, 116, 0.3);
}

.divider {
    width: 100%;
    height: 2px;
    background: var(--secondary);
    margin-top: var(--spacing-xl);
    opacity: 0.6;
}

/* ===================================
   CHAT WIDGET
   =================================== */

.chat-container {
    padding: var(--spacing-lg);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.chat-widget {
    width: 90%;
    max-width: 800px;
    height: 80vh;
    background: var(--background);
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6),
                0 0 20px rgba(212, 165, 116, 0.15);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid rgba(212, 165, 116, 0.2);
}

/* Chat Header */
.chat-header {
    background: var(--secondary);
    padding: var(--spacing-md);
    border-bottom: 2px solid rgba(26, 77, 77, 0.3);
}

.chat-header-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.chat-symbol {
    width: 32px;
    height: 32px;
}

.chat-title {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--background);
    margin: 0;
}

/* Messages Area */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    background: rgba(10, 26, 26, 0.5);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.chat-messages::-webkit-scrollbar {
    width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
    background: rgba(26, 77, 77, 0.2);
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--secondary);
    border-radius: 4px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: rgba(212, 165, 116, 0.8);
}

/* Loading Screen */
.loading-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: var(--spacing-md);
    color: var(--secondary);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(212, 165, 116, 0.2);
    border-top-color: var(--secondary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Start Screen */
.chat-start-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: var(--spacing-lg);
    text-align: center;
}

.start-content {
    max-width: 400px;
    animation: fadeIn 0.5s ease-out;
}

.start-content h3 {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    color: var(--secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.start-content p {
    color: var(--text);
    opacity: 0.85;
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.start-button {
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--secondary) 0%, #c4a06a 100%);
    color: var(--background);
    border: none;
    border-radius: 8px;
    font-family: var(--font-secondary);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(212, 165, 116, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.start-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(212, 165, 116, 0.5);
    background: linear-gradient(135deg, #e0b584 0%, var(--secondary) 100%);
}

.start-button:active {
    transform: translateY(0);
    box-shadow: 0 3px 10px rgba(212, 165, 116, 0.4);
}

/* Message Bubbles */
.message {
    max-width: 80%;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 12px;
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
    word-wrap: break-word;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    background: rgba(26, 77, 77, 0.6);
    color: var(--text);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.message.assistant {
    background: rgba(60, 60, 60, 0.6);
    color: var(--text);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    border-left: 3px solid var(--secondary);
}

.message.welcome {
    background: rgba(196, 72, 77, 0.2);
    color: var(--text);
    align-self: center;
    text-align: center;
    max-width: 90%;
    border: 1px solid var(--accent);
}

/* Typing Indicator */
.typing-indicator {
    padding: var(--spacing-sm);
    display: flex;
    gap: 4px;
    align-items: center;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--secondary);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        opacity: 0.3;
        transform: translateY(0);
    }
    30% {
        opacity: 1;
        transform: translateY(-8px);
    }
}

/* Input Area */
.chat-input-container {
    background: var(--background);
    border-top: 1px solid rgba(212, 165, 116, 0.2);
    padding: var(--spacing-md);
}

.chat-input-wrapper {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-end;
}

.chat-input {
    flex: 1;
    background: rgba(26, 77, 77, 0.3);
    border: 2px solid transparent;
    color: var(--text);
    padding: 12px 16px;
    border-radius: 8px;
    font-family: var(--font-secondary);
    font-size: var(--body-size);
    resize: none;
    min-height: 52px;
    max-height: 120px;
    overflow-y: hidden;
    overflow-x: hidden;
    transition: border-color var(--transition-fast);
    line-height: 1.5;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.chat-input:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 8px rgba(212, 165, 116, 0.2);
}

.chat-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.chat-input::-webkit-scrollbar {
    width: 6px;
}

.chat-input::-webkit-scrollbar-track {
    background: rgba(26, 77, 77, 0.2);
    border-radius: 3px;
}

.chat-input::-webkit-scrollbar-thumb {
    background: var(--secondary);
    border-radius: 3px;
}

.chat-input::-webkit-scrollbar-thumb:hover {
    background: rgba(212, 165, 116, 0.8);
}

.mic-button {
    background: rgba(26, 77, 77, 0.5) !important;
    color: var(--secondary);
    border: 2px solid var(--secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    height: 48px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    -webkit-tap-highlight-color: transparent;
    outline: none;
    box-shadow: none;
}

.mic-button:hover:not(:disabled) {
    background: rgba(26, 77, 77, 0.7) !important;
    transform: translateY(-2px);
}

.mic-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.mic-button:active:not(:disabled) {
    transform: translateY(0);
    background: rgba(26, 77, 77, 0.8) !important;
}

.mic-button.recording {
    background: var(--accent) !important;
    border-color: var(--accent);
    color: var(--text);
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(196, 72, 77, 0.7);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(196, 72, 77, 0);
    }
}

.send-button {
    background: var(--secondary);
    color: var(--background);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    height: 48px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    -webkit-tap-highlight-color: transparent;
    outline: none;
}

.send-button:hover:not(:disabled) {
    background: rgba(212, 165, 116, 0.9);
    transform: translateY(-2px);
}

.send-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.send-button:active:not(:disabled) {
    transform: translateY(0);
    background: rgba(212, 165, 116, 0.8);
}

/* Conversation Starters */
.conversation-starters {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    width: 100%;
    max-width: 400px;
}

.starter-button {
    padding: var(--spacing-md);
    background: rgba(26, 77, 77, 0.4);
    color: var(--text);
    border: 2px solid rgba(212, 165, 116, 0.3);
    border-radius: 8px;
    font-family: var(--font-secondary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: left;
    line-height: 1.5;
}

.starter-button:hover {
    background: rgba(26, 77, 77, 0.6);
    border-color: var(--secondary);
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(212, 165, 116, 0.2);
}

.starter-button:active {
    transform: translateX(3px);
}

/* ===================================
   ERROR MODAL
   =================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    background: var(--background);
    padding: var(--spacing-xl);
    border-radius: 12px;
    max-width: 400px;
    text-align: center;
    border: 2px solid var(--accent);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.modal-content h3 {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: var(--spacing-md);
}

.modal-content p {
    margin-bottom: var(--spacing-lg);
    color: var(--text);
}

.modal-button {
    background: var(--secondary);
    color: var(--background);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 8px;
    cursor: pointer;
    font-family: var(--font-secondary);
    font-size: var(--body-size);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.modal-button:hover {
    background: rgba(212, 165, 116, 0.9);
    transform: translateY(-2px);
}

/* ===================================
   FOOTER
   =================================== */

.site-footer {
    background: linear-gradient(135deg, rgba(8, 31, 31, 0.95) 0%, rgba(10, 26, 26, 0.98) 100%);
    border-top: 1px solid rgba(212, 165, 116, 0.2);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    color: var(--secondary);
    margin-bottom: var(--spacing-sm);
}

.footer-section h4 {
    font-family: var(--font-secondary);
    font-size: 1rem;
    color: var(--secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.footer-section p {
    color: var(--text);
    opacity: 0.8;
    line-height: 1.6;
    font-size: 0.95rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--text);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--secondary);
    transform: translateX(5px);
}

.footer-credit {
    font-size: 0.9rem;
}

.footer-credit strong {
    color: var(--secondary);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg) 0;
    border-top: 1px solid rgba(212, 165, 116, 0.1);
    text-align: center;
}

.footer-bottom p {
    color: var(--text);
    opacity: 0.6;
    font-size: 0.85rem;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

/* Tablet */
@media (max-width: 768px) {
    :root {
        --h1-size: 2.5rem;
        --h2-size: 1.5rem;
    }

    .hero-image-container {
        height: 60vh;
    }

    .hero-content {
        margin-top: 45vh;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .chat-widget {
        width: 80%;
        height: 60vh;
    }

    .message {
        max-width: 85%;
    }

    .header-title {
        font-size: 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

/* Mobile */
@media (max-width: 480px) {
    :root {
        --h1-size: 2rem;
        --h2-size: 1.25rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
    }

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

    .hero-image-container {
        height: 50vh;
    }

    .hero-content {
        margin-top: 35vh;
    }

    .hero-title {
        font-size: 2rem;
        letter-spacing: 0.03em;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-quote {
        font-size: 0.95rem;
    }

    .hero-cta {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 0.9rem;
    }

    .header-content {
        padding: 0 var(--spacing-sm);
    }

    .header-title {
        font-size: 0.9rem;
    }

    .header-nav {
        gap: var(--spacing-sm);
    }

    .nav-link {
        font-size: 0.85rem;
    }

    .hero-subtitle {
        white-space: normal;
        font-size: 0.95rem;
    }

    .chat-container {
        padding: var(--spacing-sm);
    }

    .chat-widget {
        width: 95%;
        height: 75vh;
        border-radius: 12px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .chat-header {
        padding: var(--spacing-sm);
    }

    .chat-title {
        font-size: 1.25rem;
    }

    .chat-messages {
        padding: var(--spacing-sm);
    }

    .message {
        max-width: 90%;
        font-size: 0.95rem;
    }

    .modal-content {
        margin: var(--spacing-md);
        padding: var(--spacing-lg);
    }

    /* Chat input layout adjustments for mobile */
    .chat-input-wrapper {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }

    .chat-input {
        width: 100%;
        flex: 1 1 100%;
        order: 1;
    }

    .mic-button,
    .send-button {
        flex: 0 0 auto;
        order: 2;
    }

    .mic-button {
        margin-left: auto;
    }
}

/* ===================================
   UTILITY CLASSES
   =================================== */

.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}