/* Base Styles for SIRGDI - Professional Theme */

:root {
    --color-primary: #3498DB;
    --color-secondary: #808B96;
    --color-text: #2C3E50;
    --color-border: #BDC3C7;
    --color-bg: #ECF0F1;
    --color-success: #27AE60;
    --color-danger: #E74C3C;
    --color-warning: #F39C12;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

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

a:hover {
    text-decoration: underline;
}

/* Header */
.header {
    background-color: white;
    border-bottom: 2px solid var(--color-primary);
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.header-brand h1 {
    font-size: 20px;
    color: var(--color-primary);
    font-weight: 600;
}

.header-nav .nav-list {
    list-style: none;
    display: flex;
    gap: 30px;
}

.header-nav a {
    color: var(--color-text);
    font-weight: 500;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-nav a i {
    color: var(--color-primary);
}

.header-nav a:hover {
    border-bottom-color: var(--color-primary);
    color: var(--color-primary);
    text-decoration: none;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-name {
    font-weight: 500;
    color: var(--color-text);
}

.user-menu {
    display: flex;
    gap: 10px;
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
    min-height: calc(100vh - 200px);
}

/* Cards & Containers */
.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    padding: 20px;
    border-left: 4px solid var(--color-primary);
}

.container {
    max-width: 600px;
    margin: 0 auto;
}

/* Forms */
.form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.form-group label {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text);
    font-size: 14px;
}

.form-control {
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 16px;
    font-family: inherit;
    transition: all 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.15);
}

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

.form-group small {
    color: var(--color-secondary);
    font-size: 12px;
    margin-top: 4px;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 8px;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background-color: #2980B9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: white;
}

.btn-secondary:hover {
    background-color: #6C757D;
}

.btn-danger {
    background-color: var(--color-danger);
    color: white;
}

.btn-danger:hover {
    background-color: #C0392B;
}

.btn-success {
    background-color: var(--color-success);
    color: white;
}

.btn-success:hover {
    background-color: #229954;
}

.btn-small {
    padding: 8px 16px;
    font-size: 14px;
}

.btn-block {
    width: 100%;
}

/* Alerts */
.alert {
    padding: 16px;
    border-radius: 4px;
    margin-bottom: 20px;
    border-left: 4px solid;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-error {
    background-color: #FADBD8;
    color: #78281F;
    border-left-color: var(--color-danger);
}

.alert-success {
    background-color: #D5F4E6;
    color: #0B5345;
    border-left-color: var(--color-success);
}

.alert-info {
    background-color: #D6EAF8;
    color: #1A5276;
    border-left-color: var(--color-primary);
}

.alert i {
    font-size: 20px;
}

/* Footer */
.footer {
    background-color: var(--color-text);
    color: white;
    padding: 40px 20px;
    text-align: center;
    margin-top: 60px;
}

.footer-container a {
    color: var(--color-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        flex-wrap: wrap;
        height: auto;
        padding: 10px 20px;
    }

    .header-nav .nav-list {
        gap: 15px;
        font-size: 14px;
    }

    .header-user {
        flex-direction: column;
        gap: 10px;
        width: 100%;
        margin-top: 10px;
    }

    .main-content {
        margin: 20px auto;
    }

    .form-control {
        font-size: 18px;
    }
}

/* ===== Banner de título reutilizable (encabezado de formularios) ===== */
.page-banner {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 24px 30px;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #2980B9, #3498DB);
    color: #fff;
    border-radius: 14px;
    box-shadow: 0 8px 24px rgba(41, 128, 185, .22);
}
.page-banner__icon {
    width: 54px;
    height: 54px;
    flex-shrink: 0;
    background: rgba(255, 255, 255, .18);
    border: 1px solid rgba(255, 255, 255, .3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}
.page-banner__text { flex: 1; }
.page-banner__text h2 {
    margin: 0 0 4px;
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    display: block;
}
.page-banner__text p {
    margin: 0;
    font-size: 13.5px;
    color: rgba(255, 255, 255, .9);
}
@media (max-width: 600px) {
    .page-banner { flex-wrap: wrap; padding: 20px; }
}