/* ========================================
   MODERN LAYOUT STYLES FOR NHÀ TRỌ AN CƯ
   ======================================== */

/* Reset và Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #34495e;
    --border-radius: 12px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 15px rgba(0, 0, 0, 0.2);
    --transition: all 0.3s ease;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: #333;
    line-height: 1.6;
}

/* ========================================
   HEADER / NAVBAR STYLES
   ======================================== */
.navbar {
    background: linear-gradient(135deg, #1a5490 0%, #2980b9 100%) !important;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 0;
    min-height: 70px;
    position: relative;
    overflow: hidden;
}

    /* Decorative background pattern */
    .navbar::before {
        content: '';
        position: absolute;
        top: -50%;
        right: -10%;
        width: 60%;
        height: 200%;
        background: rgba(255,255,255,0.05);
        transform: rotate(35deg);
        pointer-events: none;
    }

    /* Container adjustments */
    .navbar .container {
        position: relative;
        z-index: 1;
        display: flex;
        align-items: center;
        min-height: 70px;
    }

/* Brand styling */
.navbar-brand {
    color: white !important;
    font-size: 24px !important;
    font-weight: 600 !important;
    text-decoration: none !important;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 !important;
    transition: all 0.3s ease;
}

    .navbar-brand::before {
        content: '\f1ad';
        font-family: 'Font Awesome 6 Free';
        font-weight: 900;
        font-size: 28px;
        color: rgba(255,255,255,0.9);
    }

    .navbar-brand:hover {
        transform: translateX(5px);
        text-shadow: 0 2px 10px rgba(0,0,0,0.2);
    }

/* Navigation links */
.navbar-nav {
    margin-left: 2rem;
}

    .navbar-nav .nav-link {
        color: rgba(255,255,255,0.9) !important;
        font-weight: 500;
        padding: 0.8rem 1.2rem !important;
        margin: 0 0.2rem;
        border-radius: 25px;
        transition: all 0.3s ease;
        position: relative;
        background: transparent;
    }

        .navbar-nav .nav-link:hover {
            color: white !important;
            background: rgba(255,255,255,0.15);
            transform: translateY(-2px);
        }

        .navbar-nav .nav-link::before {            
            font-weight: 900;
            margin-right: 8px;
            font-size: 14px;
        }

/* Login partial styles */
.navbar-right {
    margin-left: auto !important;
    display: flex;
    align-items: center;
    gap: 10px;
}

    .navbar-right .nav-link {
        background: rgba(255,255,255,0.1);
        border: 1px solid rgba(255,255,255,0.2);
        backdrop-filter: blur(10px);
    }

        .navbar-right .nav-link:hover {
            background: rgba(255,255,255,0.25);
            border-color: rgba(255,255,255,0.4);
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
        }

/* Toggler button */
.navbar-toggler {
    border: 1px solid rgba(255,255,255,0.3) !important;
    padding: 4px 12px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

    .navbar-toggler:hover {
        background: rgba(255,255,255,0.1);
    }

.navbar-toggler-icon {
    width: 22px;
    height: 20px;
}

/* ========================================
   MAIN CONTENT STYLES
   ======================================== */
.body-content {
    padding-top: 30px;
    padding-bottom: 30px;
    min-height: calc(100vh - 70px - 200px);
}

/* ========================================
   FOOTER STYLES
   ======================================== */
footer {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 40px 0;
    margin-top: 50px;
    position: relative;
    overflow: hidden;
}

    footer::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, #3498db, #2ecc71, #3498db);
        background-size: 200% 100%;
        animation: gradientMove 3s ease infinite;
    }

@keyframes gradientMove {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

footer h4 {
    color: white !important;
    font-size: 26px;
    font-weight: 600;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

    footer h4::before {
        content: '\f1ad';
        font-family: 'Font Awesome 6 Free';
        font-weight: 900;
        color: #3498db;
    }

footer p {
    color: rgba(255,255,255,0.9) !important;
    line-height: 1.8;
    font-size: 15px;
}

footer br {
    margin-bottom: 5px;
}

/* ========================================
   RESPONSIVE STYLES
   ======================================== */
@media (max-width: 768px) {
    .navbar {
        min-height: 60px;
    }

        .navbar .container {
            min-height: 60px;
        }

    .navbar-brand {
        font-size: 20px !important;
    }

        .navbar-brand::before {
            font-size: 24px;
        }

    .navbar-collapse {
        background: rgba(0,0,0,0.1);
        margin-top: 10px;
        padding: 10px;
        border-radius: 10px;
    }

    .navbar-nav {
        margin-left: 0;
    }

        .navbar-nav .nav-link {
            margin: 5px 0;
            text-align: center;
        }

    footer {
        text-align: center;
        padding: 30px 15px;
    }

        footer h4 {
            justify-content: center;
            font-size: 22px;
        }

        footer p {
            font-size: 14px;
        }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.shadow-sm {
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

.shadow {
    box-shadow: 0 4px 8px rgba(0,0,0,0.12);
}

.shadow-lg {
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection color */
::selection {
    background: #3498db;
    color: white;
}

::-moz-selection {
    background: #3498db;
    color: white;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 5px;
}

    ::-webkit-scrollbar-thumb:hover {
        background: #555;
    }

/* ========================================
   ANIMATION CLASSES
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease;
}

/* Hover effects */
a {
    transition: all 0.3s ease;
}

button {
    transition: all 0.3s ease;
}

/* ========================================
   LOGIN PARTIAL SPECIFIC STYLES
   ======================================== */
.user-link::before {
    content: '\f007' !important;
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    margin-right: 8px;
}

.logout-link {
    background: rgba(255,71,87,0.1) !important;
    border-color: rgba(255,71,87,0.3) !important;
}

    .logout-link:hover {
        background: rgba(255,71,87,0.2) !important;
        border-color: rgba(255,71,87,0.5) !important;
    }

.login-btn {
    background: rgba(46,204,113,0.1) !important;
    border-color: rgba(46,204,113,0.3) !important;
}

    .login-btn:hover {
        background: rgba(46,204,113,0.2) !important;
        border-color: rgba(46,204,113,0.5) !important;
    }

/* Loading animation */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(52, 152, 219, 0.4);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(52, 152, 219, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(52, 152, 219, 0);
    }
}