/* Reset e Variaveis */
:root {
    --primary: #10B981;
    --primary-dark: #059669;
    --secondary: #6366F1;
    --bg-dark: #0F172A;
    --bg-card: #1E293B;
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --border: #334155;
    --success: #22C55E;
    --error: #EF4444;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.6;
}

/* Container Principal */
.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Conteudo Principal */
.main-content {
    flex: 1;
}

/* Card do Formulario */
.form-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.input-group {
    margin-bottom: 1.25rem;
}

.input-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.input-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.2s ease;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.input-group input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

/* Botao Submit */
.submit-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
}

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

/* Mensagem de Erro */
.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--error);
    padding: 0.875rem 1rem;
    border-radius: 10px;
    font-size: 0.875rem;
    margin-top: 1rem;
}

/* Card de Resultado */
.result-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    margin-bottom: 1.5rem;
}

.success-icon {
    margin-bottom: 1rem;
}

.result-card h2 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--success);
}

.short-url-box {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.short-url-box input {
    flex: 1;
    padding: 0.875rem 1rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: monospace;
}

.copy-btn {
    padding: 0.875rem 1.25rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.copy-btn:hover {
    background: var(--primary-dark);
}

.original-url {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    word-break: break-all;
}

.original-url .label {
    display: block;
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.original-url a {
    color: var(--primary);
    text-decoration: none;
}

.original-url a:hover {
    text-decoration: underline;
}

.new-link-btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 10px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.new-link-btn:hover {
    background: var(--bg-dark);
    border-color: var(--primary);
}

/* Info WhatsApp */
.whatsapp-info {
    background: rgba(37, 211, 102, 0.08);
    border: 1px solid rgba(37, 211, 102, 0.2);
    border-radius: 16px;
    padding: 1.25rem;
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.whatsapp-icon {
    flex-shrink: 0;
}

.whatsapp-text strong {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
    color: #25D366;
}

.whatsapp-text p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Footer */
.footer {
    text-align: center;
    padding-top: 2rem;
    margin-top: auto;
}

.footer p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Responsivo */
@media (max-width: 480px) {
    .container {
        padding: 1.5rem 1rem;
    }

    .logo h1 {
        font-size: 1.5rem;
    }

    .form-card,
    .result-card {
        padding: 1.5rem;
    }

    .short-url-box {
        flex-direction: column;
    }

    .copy-btn {
        justify-content: center;
    }
}