/* Zalando Sans Expanded - Fonte Principal */
/* Nota: Se os links abaixo não funcionarem, baixe os arquivos da fonte do repositório oficial:
   https://github.com/zalando/sans e hospede-os localmente */
@font-face {
    font-family: 'Zalando Sans Expanded';
    src: url('https://raw.githubusercontent.com/zalando/sans/master/ZalandoSans-Expanded-Regular.woff2') format('woff2'),
         url('https://raw.githubusercontent.com/zalando/sans/master/ZalandoSans-Expanded-Regular.woff') format('woff'),
         url('https://raw.githubusercontent.com/zalando/sans/master/ZalandoSans-Expanded-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Zalando Sans Expanded';
    src: url('https://raw.githubusercontent.com/zalando/sans/master/ZalandoSans-Expanded-Medium.woff2') format('woff2'),
         url('https://raw.githubusercontent.com/zalando/sans/master/ZalandoSans-Expanded-Medium.woff') format('woff'),
         url('https://raw.githubusercontent.com/zalando/sans/master/ZalandoSans-Expanded-Medium.ttf') format('truetype');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Zalando Sans Expanded';
    src: url('https://raw.githubusercontent.com/zalando/sans/master/ZalandoSans-Expanded-Bold.woff2') format('woff2'),
         url('https://raw.githubusercontent.com/zalando/sans/master/ZalandoSans-Expanded-Bold.woff') format('woff'),
         url('https://raw.githubusercontent.com/zalando/sans/master/ZalandoSans-Expanded-Bold.ttf') format('truetype');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

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

:root {
    /* Cores Fintech */
    --green-primary: #2EE98A;
    --green-secondary: #22C55E;
    --green-light: #3AF2A1;
    --bg-primary: #0B0B0B;
    --bg-secondary: #0F0F10;
    --card-dark: #161616;
    --card-darker: #1C1C1E;
    --text-primary: #FFFFFF;
    --text-secondary: #9CA3AF;
    --border-color: rgba(255, 255, 255, 0.1);
    --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);
}

html {
    background: #0B0B0B;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

html::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at top left, rgba(46, 233, 138, 0.15) 0%, transparent 50%),
        radial-gradient(circle at bottom right, rgba(46, 233, 138, 0.1) 0%, transparent 50%),
        #0B0B0B;
    background-attachment: fixed;
    z-index: 0;
    pointer-events: none;
}

body {
    font-family: 'Zalando Sans Expanded', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #0B0B0B;
    min-height: 100vh;
    padding: 20px;
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
    z-index: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--bg-secondary);
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

header {
    background: transparent;
    color: var(--text-primary);
    padding: 40px 50px;
    position: relative;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 12px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 1.1em;
    color: var(--text-secondary);
    font-weight: 400;
}

.info-note {
    font-size: 0.95em;
    color: var(--text-secondary);
    margin-top: 16px;
    padding: 12px 20px;
    background: var(--card-dark);
    border-radius: 12px;
    display: inline-block;
    border: 1px solid var(--border-color);
}

main {
    padding: 10px 50px 20px 50px;
    background: var(--bg-primary);
}

.form-container {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95em;
    letter-spacing: -0.01em;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 14px 18px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 1em;
    font-family: inherit;
    transition: all 0.2s ease;
    background: var(--card-dark);
    color: var(--text-primary);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-secondary);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--green-primary);
    background: var(--card-darker);
    box-shadow: 0 0 0 3px rgba(46, 233, 138, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group small {
    color: var(--text-secondary);
    font-size: 0.875em;
}

.date-range-container {
    background: var(--card-dark);
    padding: 28px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    margin: 24px 0;
}

.section-title {
    color: var(--green-primary);
    font-size: 1.2em;
    margin-bottom: 10px;
    font-weight: 600;
}

.section-description {
    color: var(--text-secondary);
    font-size: 0.9em;
    margin-bottom: 24px;
    line-height: 1.6;
}

.date-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 768px) {
    .date-inputs {
        grid-template-columns: 1fr;
    }
}

.submit-btn {
    background: var(--green-primary);
    color: var(--bg-primary);
    border: none;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 12px;
    position: relative;
    overflow: hidden;
    letter-spacing: -0.01em;
}

.submit-btn:hover:not(:disabled) {
    background: var(--green-secondary);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(46, 233, 138, 0.3);
}

.submit-btn:active:not(:disabled) {
    transform: translateY(0);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.results-container {
    margin-top: 48px;
    padding-top: 48px;
    border-top: 1px solid var(--border-color);
}

.results-container h2 {
    color: var(--text-primary);
    margin-bottom: 32px;
    font-size: 1.8em;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.posts-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.post-card {
    background: var(--card-dark);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 28px;
    transition: all 0.2s ease;
}

.post-card:hover {
    border-color: var(--green-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.post-card h3 {
    color: var(--green-primary);
    margin-bottom: 16px;
    font-size: 1.3em;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
}

.post-card .theme {
    background: var(--green-primary);
    color: var(--bg-primary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9em;
    display: inline-block;
    margin-bottom: 16px;
    font-weight: 600;
}

.post-card .copyable-content {
    background: var(--card-darker);
    padding: 24px;
    border-radius: 12px;
    margin: 16px 0;
    line-height: 1.7;
    border-left: 3px solid var(--green-primary);
    white-space: pre-wrap;
    word-wrap: break-word;
    cursor: text;
    user-select: text;
    min-height: 100px;
    color: var(--text-primary);
}

.post-card .hashtags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 16px 0;
}

.post-card .hashtag {
    background: var(--card-darker);
    color: var(--green-primary);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 600;
    border: 1px solid var(--border-color);
}

.post-card .pinterest-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--green-primary);
    text-decoration: none;
    font-weight: 600;
    margin-top: 16px;
    padding: 12px 18px;
    background: var(--card-darker);
    border-radius: 10px;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
}

.post-card .pinterest-link:hover {
    background: var(--card-dark);
    transform: translateX(4px);
    border-color: var(--green-primary);
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    color: #FCA5A5;
    padding: 16px 20px;
    border-radius: 12px;
    border-left: 3px solid #EF4444;
    margin-top: 24px;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.success-message {
    background: rgba(46, 233, 138, 0.1);
    color: var(--green-light);
    padding: 16px 20px;
    border-radius: 12px;
    border-left: 3px solid var(--green-primary);
    margin-top: 24px;
    border: 1px solid rgba(46, 233, 138, 0.2);
}

footer {
    background: transparent;
    padding: 24px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9em;
}

.loading {
    text-align: center;
    padding: 48px;
    color: var(--green-primary);
    font-size: 1.2em;
    font-weight: 500;
}

.loading::after {
    content: '...';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

@media (max-width: 768px) {
    body {
        padding: 12px;
    }

    header {
        padding: 32px 24px;
    }

    header h1 {
        font-size: 2em;
    }

    main {
        padding: 32px 24px;
    }

    .post-card {
        padding: 20px;
    }
}