/* ==============================================================================
   William Cloud Portal - Modern Design System (Safari & WebKit Compatible)
   ============================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-dark: #0a0f1d;
    --card-bg: rgba(17, 24, 39, 0.75);
    --card-border: rgba(255, 255, 255, 0.08);
    --accent-cyan: #38bdf8;
    --accent-purple: #c084fc;
    --accent-green: #4ade80;
    --accent-amber: #fbbf24;
    --accent-rose: #f43f5e;
    --text-main: #f8fafc;
    --text-sub: #94a3b8;
    --navbar-bg: rgba(15, 23, 42, 0.85);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    -webkit-tap-highlight-color: transparent;
}

/* Base Link Reset for Safari / WebKit */
a, a:link, a:visited, a:hover, a:active, a:focus {
    text-decoration: none;
    color: inherit;
    outline: none;
}

body {
    background-color: var(--bg-dark);
    background-image: 
        radial-gradient(at 0% 0%, rgba(56, 189, 248, 0.12) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(192, 132, 252, 0.1) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-main);
    min-height: 100vh;
    display: -webkit-flex;
    display: flex;
    flex-direction: column;
}

/* --- Top Navigation Bar --- */
.navbar {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--navbar-bg);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--card-border);
    padding: 0 24px;
    height: 64px;
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    -webkit-justify-content: space-between;
    justify-content: space-between;
}

.nav-brand-container {
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    gap: 12px;
}

.nav-brand, .nav-brand:visited {
    font-size: 19px;
    font-weight: 700;
    color: var(--text-main);
    text-decoration: none !important;
    letter-spacing: -0.3px;
}

.status-dot-only {
    display: -webkit-inline-flex;
    display: inline-flex;
    -webkit-align-items: center;
    align-items: center;
    -webkit-justify-content: center;
    justify-content: center;
    padding: 4px;
}

.pulse-dot {
    width: 9px;
    height: 9px;
    background-color: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-green);
    -webkit-animation: pulse 2s infinite;
    animation: pulse 2s infinite;
}

@-webkit-keyframes pulse {
    0%, 100% { opacity: 1; -webkit-transform: scale(1); transform: scale(1); }
    50% { opacity: 0.4; -webkit-transform: scale(1.2); transform: scale(1.2); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(1.2); }
}

.nav-links {
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    gap: 12px;
    list-style: none;
}

.nav-item {
    position: relative;
}

/* Uniform Navigation Button Style (Safari WebKit Compatible) */
.nav-btn,
.nav-btn:link,
.nav-btn:visited {
    display: -webkit-inline-flex;
    display: inline-flex;
    -webkit-align-items: center;
    align-items: center;
    -webkit-justify-content: center;
    justify-content: center;
    height: 36px;
    box-sizing: border-box;
    color: var(--text-sub) !important;
    text-decoration: none !important;
    font-size: 14px;
    font-weight: 500;
    padding: 0 16px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    -webkit-transition: all 0.2s ease;
    transition: all 0.2s ease;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.nav-btn:hover, 
.nav-btn.active, 
.nav-btn:focus, 
.nav-btn:active, 
.nav-btn:visited:hover {
    color: var(--text-main) !important;
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    text-decoration: none !important;
}

/* User Dropdown */
.user-dropdown-btn {
    display: -webkit-inline-flex;
    display: inline-flex;
    -webkit-align-items: center;
    align-items: center;
    -webkit-justify-content: center;
    justify-content: center;
    height: 36px;
    box-sizing: border-box;
    gap: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    color: var(--text-main);
    padding: 0 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    -webkit-transition: all 0.2s ease;
    transition: all 0.2s ease;
    -webkit-appearance: none;
    appearance: none;
}

.user-dropdown-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.dropdown-menu {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    width: 180px;
    background: #0f172a;
    border: 1px solid var(--card-border);
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    padding: 6px;
    display: none;
    flex-direction: column;
    gap: 4px;
    z-index: 110;
}

.dropdown-menu.show {
    display: -webkit-flex;
    display: flex;
    -webkit-animation: fadeIn 0.15s ease-out;
    animation: fadeIn 0.15s ease-out;
}

@-webkit-keyframes fadeIn {
    from { opacity: 0; -webkit-transform: translateY(-6px); transform: translateY(-6px); }
    to { opacity: 1; -webkit-transform: translateY(0); transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}

.dropdown-item, .dropdown-item:visited {
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    gap: 10px;
    color: var(--text-sub);
    padding: 10px 12px;
    font-size: 13px;
    text-decoration: none !important;
    border-radius: 6px;
    cursor: pointer;
    -webkit-transition: all 0.15s ease;
    transition: all 0.15s ease;
}

.dropdown-item:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-main);
}

/* --- Container & Layout --- */
.container {
    max-width: 1320px;
    margin: 0 auto;
    padding: 24px;
    width: 100%;
    flex: 1;
}

.page-header {
    margin-bottom: 24px;
}

.page-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-main);
}

.page-desc {
    font-size: 14px;
    color: var(--text-sub);
    margin-top: 4px;
}

/* --- Metrics Grid --- */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.metric-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    padding: 18px;
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    -webkit-transition: transform 0.2s ease, border-color 0.2s ease;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.metric-card:hover {
    -webkit-transform: translateY(-2px);
    transform: translateY(-2px);
    border-color: rgba(56, 189, 248, 0.3);
}

.metric-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-sub);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.metric-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-main);
}

.metric-sub {
    font-size: 12px;
    color: var(--text-sub);
    margin-top: 6px;
}

.progress-bar-bg {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    height: 6px;
    overflow: hidden;
    margin-top: 10px;
}

.progress-bar-fill {
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    height: 100%;
    width: 0%;
    -webkit-transition: width 0.5s ease;
    transition: width 0.5s ease;
}

/* --- Charts Grid --- */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(480px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.chart-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 20px;
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
}

.chart-header {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 16px;
    display: -webkit-flex;
    display: flex;
    -webkit-justify-content: space-between;
    justify-content: space-between;
    -webkit-align-items: center;
    align-items: center;
}

.chart-container {
    position: relative;
    height: 240px;
    width: 100%;
}

/* --- Footer --- */
.footer {
    text-align: center;
    color: var(--text-sub);
    font-size: 13px;
    padding: 20px 0;
    border-top: 1px solid var(--card-border);
    margin-top: auto;
}

/* --- Floating Modal Overlay --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.65);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    display: none;
    -webkit-align-items: center;
    align-items: center;
    -webkit-justify-content: center;
    justify-content: center;
    z-index: 200;
}

.modal-overlay.show {
    display: -webkit-flex;
    display: flex;
    -webkit-animation: fadeIn 0.2s ease-out;
    animation: fadeIn 0.2s ease-out;
}

.modal-box {
    background: #0f172a;
    border: 1px solid var(--card-border);
    border-radius: 16px;
    width: 100%;
    max-width: 400px;
    padding: 28px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    position: relative;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: transparent;
    border: none;
    color: var(--text-sub);
    font-size: 20px;
    cursor: pointer;
    padding: 4px;
    line-height: 1;
    -webkit-transition: color 0.2s;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--text-main);
}

.modal-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-main);
}

.modal-subtitle {
    font-size: 13px;
    color: var(--text-sub);
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-sub);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 10px 14px;
    color: var(--text-main);
    font-size: 14px;
    outline: none;
    -webkit-transition: border-color 0.2s ease;
    transition: border-color 0.2s ease;
    -webkit-appearance: none;
}

.form-input:focus {
    border-color: var(--accent-cyan);
}

.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-cyan), #0284c7);
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 12px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
    -webkit-transition: opacity 0.2s ease, transform 0.2s ease;
    transition: opacity 0.2s ease, transform 0.2s ease;
    -webkit-appearance: none;
}

.btn-primary:hover {
    opacity: 0.9;
    -webkit-transform: translateY(-1px);
    transform: translateY(-1px);
}

/* Alert Notification Boxes */
.alert-message {
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 16px;
    display: none;
}

.alert-danger {
    background: rgba(244, 63, 94, 0.15);
    border: 1px solid rgba(244, 63, 94, 0.3);
    color: var(--accent-rose);
}

.alert-warning {
    background: rgba(251, 191, 36, 0.15);
    border: 1px solid rgba(251, 191, 36, 0.3);
    color: var(--accent-amber);
}

/* Responsive Media Queries */
@media (max-width: 768px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
    .navbar {
        padding: 0 16px;
    }
    .container {
        padding: 16px;
    }
}