/* ========================================
   CHACAO Solidario - Estilos Institucionales
   Mobile-first, responsivo, elegante
   Paleta: Azules + Blanco + Amarillo
   ======================================== */

:root {
    --primary-blue: #003366;
    --secondary-blue: #0055a5;
    --light-blue: #e6f0fa;
    --accent-yellow: #f1c40f;
    --accent-yellow-dark: #d4ac0d;
    --text-dark: #1a1a2e;
    --text-muted: #6c757d;
    --white: #ffffff;
    --danger: #dc3545;
    --success: #28a745;
    --border-radius: 0.75rem;
    --shadow: 0 4px 20px rgba(0, 51, 102, 0.12);
}

* { box-sizing: border-box; }

html, body {
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    background: #f4f7fb;
    color: var(--text-dark);
    min-height: 100vh;
    -webkit-tap-highlight-color: transparent;
}

/* Navbar */
.navbar-chacao {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    box-shadow: 0 2px 12px rgba(0,51,102,0.25);
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}
.navbar-chacao .navbar-brand {
    font-size: 1.3rem;
    letter-spacing: 0.5px;
}
.navbar-chacao .nav-link {
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.5rem 0.85rem !important;
    border-radius: var(--border-radius);
    transition: background 0.2s;
}
.navbar-chacao .nav-link:hover,
.navbar-chacao .nav-link:focus {
    background: rgba(255,255,255,0.15);
}
.logo-icon { margin-right: 0.25rem; }
.logo-chacao {
    height: 32px;
    width: auto;
    border-radius: 4px;
    object-fit: contain;
    background: #fff;
    padding: 2px;
}
@media (min-width: 768px) {
    .logo-chacao { height: 38px; }
}

/* Main */
.main-content { padding-bottom: 2rem; }

/* Hero / Home */
.hero-section {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
    padding: 2.5rem 1rem;
    text-align: center;
    border-bottom-left-radius: 1.5rem;
    border-bottom-right-radius: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}
.hero-section h1 {
    font-weight: 800;
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}
.hero-section p {
    font-size: 1rem;
    opacity: 0.92;
    margin-bottom: 0;
}

/* Cards */
.card-chacao {
    border: none;
    border-radius: var(--border-radius);
    background: var(--white);
    box-shadow: var(--shadow);
    transition: transform 0.18s, box-shadow 0.18s;
    overflow: hidden;
}
.card-chacao:active { transform: scale(0.98); }
.card-chacao .card-body { padding: 1.25rem; }
.card-chacao .icon-box {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: 0.75rem;
}
.card-chacao h5 {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.35rem;
}
.card-chacao p {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-bottom: 0;
}

/* Home buttons grid */
.home-grid { padding: 0 0.75rem; }
.home-grid .row { --bs-gutter-y: 1rem; }

/* Large touch buttons */
.btn-chacao-lg {
    display: block;
    width: 100%;
    padding: 1.15rem 1rem;
    font-size: 1.05rem;
    font-weight: 700;
    border-radius: var(--border-radius);
    border: none;
    text-align: left;
    position: relative;
    transition: transform 0.15s, box-shadow 0.15s;
    line-height: 1.3;
    min-height: 72px;
}
.btn-chacao-lg:active { transform: scale(0.98); }
.btn-chacao-lg .btn-icon {
    font-size: 1.5rem;
    margin-right: 0.75rem;
    vertical-align: middle;
}
.btn-chacao-primary {
    background: linear-gradient(135deg, var(--secondary-blue) 0%, var(--primary-blue) 100%);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(0,51,102,0.25);
}
.btn-chacao-primary:hover { color: var(--white); }
.btn-chacao-warning {
    background: linear-gradient(135deg, #f7c948 0%, var(--accent-yellow-dark) 100%);
    color: var(--primary-blue);
    box-shadow: 0 4px 12px rgba(241,196,15,0.35);
}
.btn-chacao-warning:hover { color: var(--primary-blue); }
.btn-chacao-danger {
    background: linear-gradient(135deg, #e74c3c 0%, var(--danger) 100%);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(220,53,69,0.25);
}
.btn-chacao-danger:hover { color: var(--white); }
.btn-chacao-success {
    background: linear-gradient(135deg, #27ae60 0%, #1e8449 100%);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(39,174,96,0.30);
}
.btn-chacao-success:hover { color: var(--white); }
.btn-chacao-info {
    background: linear-gradient(135deg, #17a2b8 0%, #0d6e7e 100%);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(23,162,184,0.30);
}
.btn-chacao-info:hover { color: var(--white); }

/* Forms */
.form-chacao {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 1.25rem;
}
.form-chacao .form-label {
    font-weight: 600;
    font-size: 0.92rem;
    margin-bottom: 0.35rem;
    color: var(--text-dark);
}
.form-chacao .form-control,
.form-chacao .form-select {
    border-radius: 0.5rem;
    border: 1.5px solid #d0d8e4;
    padding: 0.7rem 0.85rem;
    font-size: 1rem;
    min-height: 46px;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.form-chacao .form-control:focus,
.form-chacao .form-select:focus {
    border-color: var(--secondary-blue);
    box-shadow: 0 0 0 0.2rem rgba(0,85,165,0.15);
}
.form-chacao .form-control.is-invalid { border-color: var(--danger); }
.form-chacao textarea.form-control { min-height: 100px; }

/* Section titles inside forms */
.section-title {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--primary-blue);
    border-left: 4px solid var(--accent-yellow);
    padding-left: 0.75rem;
    margin: 1.5rem 0 1rem;
}
.section-title:first-child { margin-top: 0; }

/* Submit button */
.btn-submit {
    width: 100%;
    padding: 0.9rem;
    font-size: 1.05rem;
    font-weight: 700;
    border-radius: var(--border-radius);
    background: linear-gradient(135deg, var(--secondary-blue) 0%, var(--primary-blue) 100%);
    color: var(--white);
    border: none;
    box-shadow: 0 4px 14px rgba(0,51,102,0.25);
    transition: transform 0.15s;
}
.btn-submit:active { transform: scale(0.98); }

/* Alerts */
.alert-chacao {
    border-radius: var(--border-radius);
    border: none;
    font-weight: 600;
}

/* Person found box */
.person-found {
    background: var(--light-blue);
    border: 1.5px solid #b8d4ea;
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
}
.person-found p { margin-bottom: 0.35rem; font-size: 0.95rem; }
.person-found strong { color: var(--primary-blue); }

/* Loading spinner overlay */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.85);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    flex-direction: column;
}
.loading-overlay.active { display: flex; }
.spinner-chacao {
    width: 48px;
    height: 48px;
    border: 5px solid var(--light-blue);
    border-top-color: var(--secondary-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Footer */
.footer-chacao {
    background: var(--primary-blue);
    color: var(--white);
    margin-top: auto;
    font-size: 0.85rem;
}
.footer-chacao .text-muted { color: rgba(255,255,255,0.65) !important; }

/* Utilities */
.text-primary-blue { color: var(--primary-blue) !important; }
.bg-primary-blue { background: linear-gradient(135deg, var(--secondary-blue) 0%, var(--primary-blue) 100%) !important; }
.bg-light-blue { background: var(--light-blue) !important; }

/* Responsive tweaks */
@media (min-width: 768px) {
    .hero-section { padding: 3rem 1rem; border-radius: 0 0 2rem 2rem; }
    .hero-section h1 { font-size: 2.2rem; }
    .form-chacao { padding: 2rem; }
    .btn-chacao-lg { min-height: 80px; font-size: 1.1rem; }
}
@media (max-width: 576px) {
    .hero-section { border-radius: 0 0 1rem 1rem; }
    .hero-section h1 { font-size: 1.5rem; }
}