/* ============================================
   GLOBAL RESET & BASE STYLES
   ============================================ */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #0dcaf0;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --navbar-bg: #2c3e50;
    --navbar-hover: #34495e;
    --navbar-height: 70px;
    --navbar-height-scrolled: 65px;
}

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

html, body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    scroll-behavior: smooth;
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    overflow-x: hidden;
}

body {
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

#app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    width: 100%;
    position: relative;
}

/* ============================================
   NAVIGATION BAR - FIXED POSITIONING
   ============================================ */
.elegant-nav {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 0.75rem 0;
    min-height: var(--navbar-height);
    border-bottom: 3px solid var(--primary-color);
    position: sticky;
    top: 0;
    z-index: 1030;
    transition: all 0.3s ease;
    width: 100%;
    isolation: isolate;
}

    /* Enhanced shadow when scrolling */
    .elegant-nav.scrolled {
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        padding: 0.5rem 0;
        min-height: var(--navbar-height-scrolled);
        background: linear-gradient(135deg, #1a252f 0%, #2c3e50 100%);
    }

    /* Enhanced styling when navbar is over footer */
    .elegant-nav.over-footer {
        box-shadow: 0 6px 30px rgba(0, 0, 0, 0.4);
        background: linear-gradient(135deg, rgba(26, 37, 47, 0.98) 0%, rgba(44, 62, 80, 0.98) 100%);
        backdrop-filter: blur(10px);
    }

    .elegant-nav.at-bottom {
        box-shadow: 0 6px 30px rgba(0, 0, 0, 0.5);
    }

    .elegant-nav.scrolled.over-footer {
        background: linear-gradient(135deg, rgba(20, 30, 40, 0.99) 0%, rgba(34, 48, 62, 0.99) 100%);
        backdrop-filter: blur(15px);
    }

    .elegant-nav .navbar-brand {
        font-weight: 700;
        font-size: 1.5rem;
        color: #fff;
        transition: all 0.3s ease;
    }

        .elegant-nav .navbar-brand:hover {
            transform: scale(1.05);
            color: #fff;
        }

    .elegant-nav .logo-image {
        height: 40px;
        width: auto;
        max-width: 150px;
        transition: all 0.3s ease;
    }

    .elegant-nav.scrolled .logo-image {
        height: 35px;
    }

    .elegant-nav .navbar-nav .nav-link {
        color: rgba(255, 255, 255, 0.9);
        font-weight: 500;
        padding: 0.5rem 1rem;
        margin: 0 0.25rem;
        border-radius: 0.375rem;
        transition: all 0.3s ease;
        position: relative;
    }

        .elegant-nav .navbar-nav .nav-link:hover,
        .elegant-nav .navbar-nav .nav-link:focus {
            color: #fff;
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        .elegant-nav .navbar-nav .nav-link.active {
            color: #fff;
            background-color: var(--primary-color);
        }

    .elegant-nav.over-footer .navbar-nav .nav-link {
        color: rgba(255, 255, 255, 1);
    }

        .elegant-nav.over-footer .navbar-nav .nav-link:hover {
            background-color: rgba(255, 255, 255, 0.15);
        }

    /* Dropdown styling */
    .elegant-nav .dropdown-toggle::after {
        margin-left: 0.5rem;
        vertical-align: middle;
    }

    .elegant-nav .dropdown-menu {
        background-color: #fff;
        border: none;
        border-radius: 0.5rem;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        margin-top: 0.5rem;
        padding: 0.5rem;
        min-width: 220px;
        z-index: 1040;
    }

    .elegant-nav .dropdown-item {
        color: #2c3e50;
        padding: 0.625rem 1rem;
        border-radius: 0.375rem;
        transition: all 0.3s ease;
        font-weight: 500;
    }

        .elegant-nav .dropdown-item:hover,
        .elegant-nav .dropdown-item:focus {
            background-color: var(--primary-color);
            color: #fff;
            transform: translateX(5px);
        }

        .elegant-nav .dropdown-item:active {
            background-color: #0a58ca;
            color: #fff;
        }

    .elegant-nav .dropdown-divider {
        border-top: 1px solid rgba(0, 0, 0, 0.1);
        margin: 0.5rem 0;
    }

    .elegant-nav .navbar-toggler {
        border-color: rgba(255, 255, 255, 0.5);
        padding: 0.5rem 0.75rem;
    }

        .elegant-nav .navbar-toggler:focus {
            box-shadow: 0 0 0 0.25rem rgba(255, 255, 255, 0.25);
        }

    .elegant-nav .navbar-toggler-icon {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.9%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }

/* ============================================
   MAIN CONTENT AREA
   ============================================ */
.main-content {
    flex: 1 0 auto;
    width: 100%;
    position: relative;
    z-index: 1;
    min-height: calc(100vh - var(--navbar-height) - 300px);
}

/* ============================================
   FOOTER
   ============================================ */
.elegant-footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: rgba(255, 255, 255, 0.9);
    padding: 3rem 0 0;
    border-top: 3px solid var(--primary-color);
    position: relative;
    z-index: 1;
    flex-shrink: 0;
    margin-top: auto;
}

    .elegant-footer .footer-title {
        color: #fff;
        font-weight: 600;
        font-size: 0.95rem;
        letter-spacing: 0.5px;
        text-transform: uppercase;
        position: relative;
        padding-bottom: 0.75rem;
    }

        .elegant-footer .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 40px;
            height: 2px;
            background-color: var(--warning-color);
        }

    .elegant-footer .office-item,
    .elegant-footer .contact-item {
        margin-bottom: 1rem;
    }

        .elegant-footer .office-item p,
        .elegant-footer .contact-item p {
            color: rgba(255, 255, 255, 0.8);
        }

    .elegant-footer .footer-links li {
        margin-bottom: 0.625rem;
    }

        .elegant-footer .footer-links li a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
            position: relative;
            padding-left: 1.25rem;
        }

            .elegant-footer .footer-links li a::before {
                content: '▸';
                position: absolute;
                left: 0;
                color: var(--warning-color);
                transition: all 0.3s ease;
            }

            .elegant-footer .footer-links li a:hover {
                color: #fff;
                transform: translateX(5px);
            }

                .elegant-footer .footer-links li a:hover::before {
                    left: 5px;
                }

    .elegant-footer .contact-icon {
        font-size: 1.25rem;
    }

    .elegant-footer .social-footer {
        display: flex;
        gap: 1rem;
    }

    .elegant-footer .social-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background-color: rgba(255, 255, 255, 0.1);
        border-radius: 50%;
        color: rgba(255, 255, 255, 0.8);
        transition: all 0.3s ease;
    }

        .elegant-footer .social-icon:hover {
            background-color: var(--primary-color);
            color: #fff;
            transform: translateY(-3px);
        }

    .elegant-footer .footer-divider {
        border-color: rgba(255, 255, 255, 0.1);
        opacity: 1;
    }

    .elegant-footer .copyright {
        color: rgba(255, 255, 255, 0.7);
        font-size: 0.9rem;
    }

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.display-1, .display-2, .display-3, .display-4, .display-5, .display-6 {
    font-weight: 700;
    line-height: 1.1;
}

p {
    margin-bottom: 1rem;
}

/* ============================================
   CONTAINERS
   ============================================ */
.container, .container-fluid {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    font-weight: 500;
    padding: 0.625rem 1.5rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    display: inline-block;
    text-align: center;
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1.1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

    .btn-primary:hover {
        background-color: #0a58ca;
        border-color: #0a58ca;
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(13, 110, 253, 0.4);
    }

.btn-warning {
    background-color: var(--warning-color);
    border-color: var(--warning-color);
    color: #000;
}

    .btn-warning:hover {
        background-color: #ffb700;
        border-color: #ffb700;
        color: #000;
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(255, 193, 7, 0.4);
    }

/* ============================================
   CARDS
   ============================================ */
.card {
    border-radius: 0.75rem;
    transition: all 0.3s ease;
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.125);
}

    .card:hover {
        transform: translateY(-5px);
    }

.shadow {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
}

/* ============================================
   FORMS
   ============================================ */
.form-control, .form-select {
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid #dee2e6;
    transition: all 0.3s ease;
    width: 100%;
}

    .form-control:focus, .form-select:focus {
        border-color: var(--primary-color);
        box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
        outline: 0;
    }

/* ============================================
   UTILITIES
   ============================================ */
.bg-light {
    background-color: var(--light-color) !important;
}

.bg-dark {
    background-color: var(--dark-color) !important;
}

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

html {
    scroll-padding-top: 80px;
    scroll-behavior: smooth;
}

/* ============================================
   PROJECT STATISTICS CARDS
   ============================================ */
.statistics-card {
    transition: all 0.3s ease;
    cursor: pointer;
}

.statistics-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15) !important;
}

.statistics-card .rounded-circle {
    transition: all 0.3s ease;
}

.statistics-card:hover .rounded-circle {
    transform: scale(1.1);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

/* ============================================
   RESPONSIVE MOBILE STYLES
   ============================================ */
@media (max-width: 991.98px) {
    .elegant-nav {
        padding: 0.5rem 0;
        min-height: 60px;
    }

        .elegant-nav.scrolled {
            min-height: 55px;
        }

        .elegant-nav .navbar-collapse {
            background-color: rgba(44, 62, 80, 0.98);
            border-radius: 0.5rem;
            margin-top: 1rem;
            padding: 1rem;
            max-height: calc(100vh - 80px);
            overflow-y: auto;
        }

        .elegant-nav.over-footer .navbar-collapse {
            background-color: rgba(20, 30, 40, 0.99);
            backdrop-filter: blur(10px);
        }

        .elegant-nav .navbar-nav .nav-link {
            margin: 0.25rem 0;
            padding: 0.75rem 1rem;
        }

        .elegant-nav .dropdown-menu {
            background-color: rgba(52, 73, 94, 0.95);
            box-shadow: none;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .elegant-nav .dropdown-item {
            color: rgba(255, 255, 255, 0.9);
            padding: 0.625rem 1.25rem;
        }

            .elegant-nav .dropdown-item:hover {
                background-color: rgba(13, 110, 253, 0.8);
                color: #fff;
            }

        .elegant-nav .logo-image {
            height: 35px;
        }
}

@media (max-width: 767.98px) {
    .display-1 {
        font-size: 2.5rem;
    }

    .display-2 {
        font-size: 2.25rem;
    }

    .display-3 {
        font-size: 2rem;
    }

    .display-4 {
        font-size: 1.75rem;
    }
}

/* ============================================
   BLAZOR ERROR UI
   ============================================ */
#blazor-error-ui {
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }