/* ===================================
   Reset e Base Styles
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Palette elegante e sobria */
    --color-primary: #3d2645;
    --color-secondary: #7e5a8c;
    --color-accent: #c89da8;
    --color-bg: #faf8f5;
    --color-white: #ffffff;
    --color-text: #2c2c2c;
    --color-text-light: #666666;
    --color-border: #e0ddd8;
    --color-error: #d44f4f;
    
    /* Typography */
    --font-serif: 'Cormorant Garamond', serif;
    --font-sans: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   Hero Image Section
   =================================== */
.hero-image {
    width: 100%;
    overflow: hidden;
    max-height: 600px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--color-bg);
}

.header-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    object-position: center;
    display: block;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120" opacity="0.1"><path d="M0,0 Q300,60 600,0 T1200,0 L1200,120 L0,120 Z" fill="white"/></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.5;
}

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

.date-badge {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    backdrop-filter: blur(10px);
}

.main-title {
    font-family: var(--font-serif);
    font-size: 3.5rem;
    font-weight: 400;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 1px;
    line-height: 1.2;
}

.subtitle {
    font-size: 1.1rem;
    font-weight: 300;
    opacity: 0.95;
    line-height: 1.8;
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   Collaboration Section
   =================================== */
.collaboration {
    background-color: var(--color-white);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-border);
}

.collaboration-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.collab-logo-link {
    display: inline-block;
    transition: var(--transition);
}

.collab-logo-link:hover {
    transform: translateY(-3px);
    opacity: 0.9;
}

.collab-logo {
    height: 60px;
    width: auto;
    display: block;
}

.adgi-logo {
    height: 70px;
}

.collab-text {
    font-style: italic;
    color: var(--color-text-light);
    font-size: 1rem;
    text-align: center;
}

.collab-text p {
    margin: 0;
}

/* ===================================
   Intro Section
   =================================== */
.intro {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

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

.intro-text {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    line-height: 1.9;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.intro-text.highlight {
    color: var(--color-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    border-left: 4px solid var(--color-accent);
    border-radius: 4px;
}

.intro-note {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-lg);
    font-style: italic;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===================================
   Form Section
   =================================== */
.form-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg);
}

.form-container {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.form-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.optional {
    font-size: 0.9rem;
    font-weight: 300;
    color: var(--color-text-light);
    font-style: italic;
}

.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--color-border);
    border-radius: 8px;
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--color-text);
    background-color: var(--color-white);
    transition: var(--transition);
    resize: vertical;
}

.form-textarea {
    line-height: 1.6;
    min-height: 120px;
}

.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(126, 90, 140, 0.1);
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="8" viewBox="0 0 12 8"><path fill="%233d2645" d="M6 8L0 0h12z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

.char-counter {
    text-align: right;
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

.privacy-note {
    background-color: #f0f7f4;
    border-left: 4px solid #5fb894;
    padding: var(--spacing-md);
    border-radius: 4px;
    margin-bottom: var(--spacing-md);
}

.privacy-note p {
    font-size: 0.95rem;
    color: #2d6a52;
    margin-bottom: var(--spacing-xs);
}

.privacy-note p:last-child {
    margin-bottom: 0;
}

.form-actions {
    text-align: center;
    margin-top: var(--spacing-lg);
}

.btn-submit {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
    padding: 1rem 3rem;
    font-size: 1.1rem;
    font-weight: 500;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(61, 38, 69, 0.3);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(61, 38, 69, 0.4);
}

.btn-submit:active {
    transform: translateY(0);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.error-message {
    background-color: #ffe6e6;
    color: var(--color-error);
    padding: var(--spacing-sm);
    border-radius: 4px;
    margin-top: var(--spacing-md);
    text-align: center;
    border: 1px solid #ffcccc;
}

/* ===================================
   Closure Section
   =================================== */
.closure {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

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

.closure-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.closure-quote {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    line-height: 1.8;
    color: var(--color-primary);
    font-style: italic;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    border-top: 2px solid var(--color-accent);
    border-bottom: 2px solid var(--color-accent);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-logo-link {
    display: inline-block;
    transition: var(--transition);
}

.footer-logo-link:hover {
    transform: translateY(-3px);
    opacity: 0.9;
}

.footer-logo {
    height: 80px;
    width: auto;
    display: block;
}

.footer-text {
    font-size: 0.95rem;
    opacity: 0.9;
    margin: 0;
}

.footer-link {
    margin: 0;
}

.footer-link a {
    color: var(--color-white);
    text-decoration: none;
    font-size: 0.9rem;
    opacity: 0.8;
    transition: var(--transition);
    border-bottom: 1px solid transparent;
}

.footer-link a:hover {
    opacity: 1;
    border-bottom-color: var(--color-white);
}

/* ===================================
   Thank You Page
   =================================== */
.thank-you-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
    text-align: center;
    padding: var(--spacing-md);
}

.thank-you-content {
    max-width: 600px;
}

.thank-you-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.thank-you-title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.thank-you-text {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
    opacity: 0.95;
}

.thank-you-footer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    font-size: 0.95rem;
    opacity: 0.8;
}

.thank-you-logo-link {
    display: inline-block;
    margin: var(--spacing-sm) 0;
    transition: var(--transition);
}

.thank-you-logo-link:hover {
    transform: translateY(-3px);
    opacity: 0.9;
}

.thank-you-logo {
    height: 70px;
    width: auto;
    display: block;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    .main-title {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .intro-text {
        font-size: 1.1rem;
    }
    
    .form-container {
        padding: var(--spacing-md);
    }
    
    .form-title {
        font-size: 1.6rem;
    }
    
    .btn-submit {
        padding: 0.9rem 2rem;
        font-size: 1rem;
    }
    
    .closure-quote {
        font-size: 1.3rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-image {
        max-height: 400px;
    }
    
    .footer-logo {
        height: 60px;
    }
    
    .collaboration-content {
        gap: var(--spacing-sm);
    }
    
    .collab-logo {
        height: 50px;
    }
    
    .adgi-logo {
        height: 60px;
    }
    
    .collab-text {
        font-size: 0.9rem;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 2rem;
    }
    
    .hero {
        padding: var(--spacing-md) 0;
    }
    
    .intro,
    .form-section,
    .closure {
        padding: var(--spacing-md) 0;
    }
    
    .form-container {
        padding: var(--spacing-sm);
    }
    
    .hero-image {
        max-height: 300px;
    }
    
    .footer-logo {
        height: 50px;
    }
    
    .collaboration {
        padding: var(--spacing-md) 0;
    }
    
    .collaboration-content {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .collab-logo {
        height: 45px;
    }
    
    .adgi-logo {
        height: 55px;
    }
    
    .collab-text {
        font-size: 0.85rem;
    }
}

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

.hero-content {
    animation: fadeIn 0.8s ease-out;
}

.intro-content {
    animation: fadeIn 1s ease-out 0.2s both;
}

.form-container {
    animation: fadeIn 1s ease-out 0.4s both;
}