:root {
    --ottanio-50: #f1fbfb;
    --ottanio-100: #d9f1f2;
    --ottanio-200: #b7e3e4;
    --ottanio-300: #85cfd1;
    --ottanio-400: #43b4b6;
    --ottanio-500: #00797b;
    --ottanio-600: #006668;
    --ottanio-700: #004c4e;
    --surface-0: #ffffff;
    --surface-1: #f7fcfc;
    --surface-2: #ebf3f4;
    --shadow-soft: 0px 15px 45px rgba(0, 121, 123, 0.12);
    --text-900: #17363a;
    --text-600: #4f6b70;
    --text-400: #6f858a;
    --accent-coral-strong: #ff7b66;
    --accent-coral-soft: rgba(255, 138, 122, 0.16);
    --radius-lg: 18px;
}

body {
    background: linear-gradient(180deg, var(--surface-1), var(--surface-0) 35%, var(--surface-2));
    color: var(--text-900);
    font-family: "Inter", "Segoe UI", "Roboto", "Helvetica Neue", Arial, sans-serif;
    min-height: 100vh;
}

a {
    color: var(--ottanio-500);
    text-decoration: none;
    transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover,
a:focus {
    color: var(--accent-coral-strong);
    text-decoration: none;
}

.app-navbar {
    background: linear-gradient(135deg, var(--ottanio-600), var(--ottanio-500));
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.app-navbar .navbar-brand {
    color: #fff;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.app-navbar .nav-link {
    color: #fff;
}

.app-navbar .nav-link:hover,
.app-navbar .nav-link:focus {
    color: #fff;
}

.app-navbar .dropdown-menu {
    border: none;
    border-radius: 14px;
    box-shadow: var(--shadow-soft);
    padding: 0.75rem 0.5rem;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(14px);
}

.app-navbar .dropdown-item {
    border-radius: 8px;
    padding: 0.55rem 1rem;
    color: var(--text-900);
    transition: background-color 0.2s ease, color 0.2s ease;
}

.app-navbar .dropdown-item:hover,
.app-navbar .dropdown-item:focus {
    background: rgba(0, 121, 123, 0.12);
    color: var(--ottanio-600);
}

.app-navbar .dropdown-item.disabled {
    color: var(--text-400);
}

.app-navbar .badge {
    background-color: rgba(0, 121, 123, 0.12);
    color: var(--ottanio-600);
}

main.container-xxl {
    max-width: 1100px;
    padding-block: 2.5rem 4rem;
}

.app-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.app-breadcrumbs .breadcrumb {
    margin-bottom: 0;
    font-size: 0.85rem;
    color: var(--text-600);
}

.app-breadcrumbs__back {
    padding: 0.25rem 0.75rem;
    line-height: 1.2;
    font-size: 0.85rem;
    border: none;
    color: var(--text-400);
    background-color: transparent;
    box-shadow: none;
    font-weight: 500;
}

.app-breadcrumbs__back:hover,
.app-breadcrumbs__back:focus {
    color: var(--ottanio-600);
    background-color: rgba(0, 121, 123, 0.1);
}

.sync-tooltip {
    width: 1.4rem;
    height: 1.4rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: none;
    background-color: rgba(0, 121, 123, 0.12);
    color: var(--ottanio-600);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.sync-tooltip:hover,
.sync-tooltip:focus {
    color: var(--ottanio-700);
    background-color: rgba(0, 121, 123, 0.2);
}


.page-title {
    font-size: clamp(1.75rem, 2vw + 1.2rem, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--ottanio-700);
}

.page-subtitle {
    color: var(--text-600);
    max-width: 720px;
}

.app-page-heading {
    font-size: clamp(1.8rem, 2vw + 1.2rem, 2.6rem);
    font-weight: 700;
    letter-spacing: -0.015em;
    color: var(--ottanio-700);
}

.app-section-heading {
    font-size: clamp(1.5rem, 1.4vw + 1.1rem, 2rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--ottanio-700);
}

.card {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(12px);
}

.card .card-body {
    padding: clamp(1.25rem, 1.5vw + 0.9rem, 2rem);
}

.app-section {
    background: rgba(255, 255, 255, 0.82);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    padding: clamp(1.75rem, 2vw + 1.5rem, 2.75rem);
}

.btn {
    font-weight: 600;
    border-radius: 999px;
    padding: 0.6rem 1.4rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.btn:focus {
    box-shadow: 0 0 0 0.25rem rgba(0, 121, 123, 0.25);
}

.btn:hover,
.btn:focus {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--ottanio-500), var(--ottanio-600));
    border-color: transparent;
    box-shadow: 0 10px 20px rgba(0, 121, 123, 0.25);
}

.btn-primary:hover,
.btn-primary:focus {
    background: linear-gradient(135deg, var(--ottanio-600), var(--ottanio-700));
}

.btn-outline-primary {
    color: var(--ottanio-600);
    border-color: rgba(0, 102, 104, 0.35);
    background-color: rgba(0, 121, 123, 0.08);
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
    color: #fff;
    background-color: var(--ottanio-600);
    border-color: var(--ottanio-600);
}

.btn-outline-secondary {
    color: var(--text-600);
    border-color: rgba(0, 121, 123, 0.18);
    background-color: transparent;
}

.btn-outline-secondary:hover,
.btn-outline-secondary:focus {
    color: var(--ottanio-600);
    border-color: rgba(0, 121, 123, 0.35);
    background-color: rgba(0, 121, 123, 0.08);
}

.badge.bg-secondary {
    background-color: rgba(0, 121, 123, 0.15) !important;
    color: var(--ottanio-600);
}

.form-control,
.form-select {
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 14px;
    border: 1px solid rgba(0, 121, 123, 0.18);
    box-shadow: none;
    padding: 0.65rem 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: rgba(0, 121, 123, 0.45);
    box-shadow: 0 0 0 0.2rem rgba(0, 121, 123, 0.18);
    background-color: #fff;
}

.form-text {
    color: var(--text-600);
}

.app-card-title {
    font-size: 1.125rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-400);
}

.list-group-item {
    border: none;
    border-radius: 12px !important;
    margin-bottom: 0.5rem;
    box-shadow: inset 0 0 0 1px rgba(0, 121, 123, 0.12);
}

.alert {
    border: none;
    border-radius: 14px;
    padding: 1rem 1.25rem;
}

.alert-info {
    background-color: rgba(67, 180, 182, 0.18);
    color: var(--ottanio-600);
}

.alert-success {
    background-color: rgba(0, 121, 123, 0.14);
    color: #0b5b5c;
}

.alert-warning {
    background-color: rgba(255, 196, 92, 0.26);
    color: #7a4d00;
}

.alert-danger {
    background-color: rgba(192, 55, 75, 0.2);
    color: #6a0f20;
}

#calendar {
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    padding: clamp(1.5rem, 2vw + 1rem, 2.5rem);
}

.calendar-card {
    background: rgba(255, 255, 255, 0.92);
}

.calendar-day-indicator {
    font-weight: 600;
    color: var(--ottanio-500);
}

.dropdown-menu {
    backdrop-filter: blur(14px);
}

.table {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table thead {
    background-color: rgba(0, 121, 123, 0.08);
}

.table-striped > tbody > tr:nth-of-type(odd) {
    --bs-table-accent-bg: rgba(0, 121, 123, 0.05);
}

.text-muted {
    color: var(--text-600) !important;
}

.app-chip {
    align-items: center;
    background-color: var(--accent-coral-soft);
    border-radius: 999px;
    display: inline-flex;
    font-size: 0.85rem;
    font-weight: 600;
    gap: 0.35rem;
    padding: 0.3rem 0.75rem;
    color: var(--accent-coral-strong);
}

#flash-messages {
    position: fixed;
    top: calc(4.25rem + 1rem);
    left: 1.5rem;
    right: auto;
    bottom: auto;
    width: min(420px, 90vw);
    pointer-events: none;
    z-index: 1080;
}

#flash-messages .alert {
    pointer-events: auto;
    box-shadow: var(--shadow-soft);
    margin-bottom: 1rem;
    color: inherit;
}

.site-footer {
    background: #fff;
    border-top: 1px solid rgba(0, 121, 123, 0.16);
    font-size: 0.9rem;
    padding: 2.5rem 0;
    box-shadow: none;
    border-radius: 0;
}

.site-footer__links .link-secondary {
    color: var(--text-600);
    font-weight: 500;
}

.site-footer__links .link-secondary:hover,
.site-footer__links .link-secondary:focus {
    color: var(--ottanio-500);
    text-decoration: underline;
}

.legal-card {
    position: relative;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.92);
    box-shadow: var(--shadow-soft);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.legal-card .stretched-link {
    color: var(--ottanio-600);
}

.legal-card .stretched-link:hover,
.legal-card .stretched-link:focus {
    color: var(--accent-coral-strong);
    text-decoration: underline;
}

.legal-card:hover,
.legal-card:focus-within {
    transform: translateY(-2px);
    box-shadow: 0 18px 38px rgba(0, 121, 123, 0.18);
}

@media (max-width: 991px) {
    .app-navbar .navbar-nav .nav-link {
        padding: 0.5rem 0.75rem;
        border-radius: 8px;
    }

    .app-navbar .dropdown-menu {
        background: rgba(255, 255, 255, 0.98);
    }

    main.container-xxl {
        padding-block: 2.5rem;
    }

    #flash-messages {
        left: 1rem;
        right: auto;
        width: min(420px, 90vw);
        top: calc(4rem + 0.75rem);
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}
.social-login-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.btn-social-login {
    align-items: center;
    display: inline-flex;
    gap: 0.75rem;
    justify-content: center;
    padding-block: 0.65rem;
}

.btn-social-login__icon {
    align-items: center;
    background-color: rgba(255, 255, 255, 0.85);
    border-radius: 999px;
    display: inline-flex;
    height: 2rem;
    justify-content: center;
    width: 2rem;
}

.btn-social-login__monogram {
    color: var(--ottanio-500);
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
}

.btn-social-login__label {
    font-weight: 600;
}