/* Variables */
:root {
    --primary: #00008B;
    --primary-dark: #000066;
    --primary-light: #e6e6ff;
    --secondary: #2c3e50;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #17a2b8;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-500: #adb5bd;
    --gray-700: #495057;
    --gray-900: #212529;
    --white: #ffffff;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --radius: 8px;
    --radius-lg: 12px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif; font-size: 16px; line-height: 1.6; color: var(--gray-900); background: var(--gray-100); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.container-sm { max-width: 700px; }

/* Header */
.public-header { background: var(--white); border-bottom: 1px solid var(--gray-200); padding: 1rem 0; position: sticky; top: 0; z-index: 100; }
.public-header .container { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 0.5rem; font-size: 1.25rem; font-weight: 600; color: var(--primary); }
.logo:hover { text-decoration: none; }
.logo-icon { font-size: 1.5rem; }
.header-nav { display: flex; gap: 1rem; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.625rem 1.25rem; font-size: 0.9375rem; font-weight: 500; border: none; border-radius: var(--radius); cursor: pointer; transition: all 0.2s; text-decoration: none !important; }
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--gray-200); color: var(--gray-700); }
.btn-secondary:hover { background: var(--gray-300); }
.btn-outline { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: var(--white); }
.btn-lg { padding: 0.875rem 1.75rem; font-size: 1.0625rem; }
.btn-sm { padding: 0.375rem 0.75rem; font-size: 0.875rem; }
.btn-block { width: 100%; }
.btn-icon { font-size: 1.125em; }

/* Forms */
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 500; color: var(--gray-700); }
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    background: var(--white);
    transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}
.form-group.has-error input, .form-group.has-error textarea { border-color: var(--danger); }
.error-message { display: block; margin-top: 0.25rem; font-size: 0.875rem; color: var(--danger); }
.help-text { display: block; margin-top: 0.25rem; font-size: 0.875rem; color: var(--gray-500); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }
.form-actions { margin-top: 1.5rem; }

/* Alerts */
.alert { display: flex; align-items: center; gap: 0.75rem; padding: 1rem; margin-bottom: 1rem; border-radius: var(--radius); }
.alert-success { background: #d4edda; color: #155724; }
.alert-error { background: #f8d7da; color: #721c24; }
.alert-warning { background: #fff3cd; color: #856404; }
.alert-info { background: #d1ecf1; color: #0c5460; }
.alert-icon { font-size: 1.25rem; }
.alert-close { margin-left: auto; background: none; border: none; font-size: 1.25rem; cursor: pointer; opacity: 0.5; }
.alert-close:hover { opacity: 1; }

/* Badges */
.badge { display: inline-block; padding: 0.25rem 0.625rem; font-size: 0.75rem; font-weight: 600; border-radius: 9999px; text-transform: uppercase; }
.badge-blue { background: #e3f2fd; color: #1565c0; }
.badge-green { background: #e8f5e9; color: #2e7d32; }
.badge-yellow { background: #fff8e1; color: #f57f17; }
.badge-red { background: #ffebee; color: #c62828; }
.badge-gray { background: var(--gray-200); color: var(--gray-700); }

/* Home page */
.home-page { min-height: 100vh; display: flex; flex-direction: column; }
.home-main { flex: 1; }
.hero { padding: 4rem 0; text-align: center; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); color: var(--white); }
.hero h1 { font-size: 2.5rem; margin-bottom: 1rem; }
.hero-subtitle { font-size: 1.25rem; opacity: 0.9; margin-bottom: 2rem; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hero-actions .btn-primary { background: var(--white); color: var(--primary); }
.hero-actions .btn-primary:hover { background: var(--gray-100); }
.hero-actions .btn-secondary { background: rgba(255,255,255,0.2); color: var(--white); border: 1px solid rgba(255,255,255,0.3); }

.features { padding: 4rem 0; background: var(--white); }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; }
.feature-card { text-align: center; padding: 2rem; border-radius: var(--radius-lg); background: var(--gray-100); }
.feature-icon { font-size: 3rem; margin-bottom: 1rem; }
.feature-card h3 { margin-bottom: 0.5rem; }
.feature-card p { color: var(--gray-700); }

.track-ticket { padding: 4rem 0; text-align: center; }
.track-ticket h2 { margin-bottom: 1.5rem; }
.track-form { display: flex; gap: 0.5rem; max-width: 500px; margin: 0 auto; }
.track-form input { flex: 1; }

/* Footer */
.public-footer { padding: 2rem 0; background: var(--secondary); color: rgba(255,255,255,0.8); }
.public-footer .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
.footer-nav { display: flex; gap: 1.5rem; }
.footer-nav a { color: rgba(255,255,255,0.8); }
.footer-nav a:hover { color: var(--white); }

/* Page main */
.page-main { padding: 2rem 0; }
.page-main h1 { margin-bottom: 0.5rem; }
.page-intro { color: var(--gray-700); margin-bottom: 2rem; }

/* Ticket form */
.ticket-form { background: var(--white); padding: 2rem; border-radius: var(--radius-lg); box-shadow: var(--shadow); }

/* Ticket view */
.ticket-view { background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow); overflow: hidden; }
.ticket-header-public { padding: 1.5rem 2rem; border-bottom: 1px solid var(--gray-200); }
.ticket-number { font-size: 0.875rem; color: var(--gray-500); font-weight: 500; }
.ticket-header-public h1 { font-size: 1.5rem; margin: 0.5rem 0; }
.ticket-meta-public { display: flex; gap: 1rem; align-items: center; color: var(--gray-700); font-size: 0.875rem; }

.conversation { padding: 1.5rem 2rem; }
.conversation-message { display: flex; gap: 1rem; margin-bottom: 1.5rem; }
.conversation-message.from-agent { flex-direction: row-reverse; }
.message-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--primary); color: var(--white); display: flex; align-items: center; justify-content: center; font-weight: 600; flex-shrink: 0; }
.from-agent .message-avatar { background: var(--secondary); }
.message-content { max-width: 80%; }
.message-header { margin-bottom: 0.25rem; font-size: 0.875rem; }
.message-header strong { color: var(--gray-900); }
.agent-badge { background: var(--primary-light); color: var(--primary); padding: 0.125rem 0.5rem; border-radius: 4px; font-size: 0.75rem; margin-left: 0.5rem; }
.message-time { color: var(--gray-500); margin-left: 0.5rem; }
.message-text { background: var(--gray-100); padding: 1rem; border-radius: var(--radius); }
.from-agent .message-text { background: var(--primary-light); }

.reply-section-public { padding: 1.5rem 2rem; border-top: 1px solid var(--gray-200); background: var(--gray-100); }
.reply-section-public h3 { margin-bottom: 1rem; }

.ticket-closed-notice { padding: 1.5rem 2rem; background: var(--success); color: var(--white); text-align: center; }
.ticket-closed-notice a { color: var(--white); text-decoration: underline; }