/* ========================================================================= */
/* FLUTTER APPBOUND DESIGN SYSTEM TOKENS (NATIVE FEEL)                      */
/* ========================================================================= */
:root {
    --primary-font: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --background-base: #f7f9f4;       /* Canvas light standard color */
    --surface-card: #ffffff;
    --text-main: #0f172a;             /* Rich Obsidian App Black */
    --text-muted: #64748b;            /* High accessibility contrast text gray */
    --brand-accent: #b91c1c;          /* Premium Mehrum Theme */
    --brand-accent-light: #fef2f2;
    --border-token: #e2e8f0;
    
    /* Flutter Framework Shadow & Blur Matrices */
    --shadow-sm: 0 4px 20px rgba(15, 23, 42, 0.02);
    --shadow-md: 0 12px 32px -8px rgba(15, 23, 42, 0.06), 0 4px 12px -2px rgba(15, 23, 42, 0.02);
    --shadow-premium: 0 20px 40px rgba(15, 23, 42, 0.08);
    
    /* Cupertino (iOS) Shape Smoothness */
    --radius-sm: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-pill: 100px;
    
    /* Linear Spring Physics (iOS-like tactile speed) */
    --transition-smooth: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
    --touch-response: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- STRUCTURAL APP CANVAS RESET --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent; /* Browser tapping flash framework removal */
}

body {
    font-family: var(--primary-font);
    background-color: var(--background-base);
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
    width: 100%;
}

/* --- FLUTTER CORE COMPONENT LAYOUT --- */
.profile-container {
    max-width: 1240px;
    margin: 40px auto 100px auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 40px;
    align-items: start;
}

/* --- PROFILE SIDEBAR DASHBOARD (FLUTTER SHEET) --- */
.profile-sidebar {
    background: var(--surface-card);
    border: 1px solid var(--border-token);
    border-radius: var(--radius-xl);
    padding: 35px 28px;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

/* Top Subtle Identity Divider */
.avatar-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border-bottom: 1px solid #f1f5f9;
    padding-bottom: 28px;
}

.avatar-wrapper {
    position: relative;
    margin-bottom: 18px;
    transition: var(--touch-response);
}

.avatar-wrapper:active {
    transform: scale(0.95);
}

.profile-avatar-icon {
    font-size: 90px;
    color: #cbd5e1;
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border-radius: 50%;
    display: block;
    box-shadow: var(--shadow-sm);
}

.user-name-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-main);
    margin: 0 0 10px 0;
    letter-spacing: -0.6px;
    line-height: 1.2;
}

/* Native Chip UI Badge */
.uid-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #f1f5f9;
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 700;
    border: 1px solid rgba(15, 23, 42, 0.02);
}

.uid-label {
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 10px;
    letter-spacing: 0.8px;
}

.uid-value {
    color: var(--text-main);
    font-family: 'Courier New', Courier, monospace;
    font-size: 13px;
    font-weight: 700;
}

/* Metadata Parameters Vector Stack */
.user-meta-info {
    padding: 28px 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 4px 0;
}

.meta-icon-box {
    width: 42px;
    height: 42px;
    background: var(--brand-accent-light);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-accent);
    font-size: 16px;
    flex-shrink: 0;
    border: 1px solid rgba(185, 28, 28, 0.05);
}

.meta-text {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.meta-text label {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 700;
    margin-bottom: 3px;
    letter-spacing: 0.5px;
}

.meta-text span {
    font-size: 14.5px;
    color: var(--text-main);
    font-weight: 600;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
}

/* Tactile Logout Button Framework */
.btn-logout {
    width: 100%;
    padding: 14px;
    background: transparent;
    border: 1px solid #fee2e2;
    color: #dc2626;
    border-radius: var(--radius-lg);
    font-family: var(--primary-font);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-logout:hover {
    background: #fef2f2;
    border-color: #fca5a5;
}

.btn-logout:active {
    transform: scale(0.97); /* Tactile click engine push back */
}

/* --- CONTENT PANEL TABS NAVIGATION (SLIDING SEGMENT) --- */
.profile-content-area {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.profile-tabs-nav {
    display: flex;
    gap: 4px;
    background: #edf2f7;
    padding: 6px;
    border-radius: var(--radius-lg);
    width: fit-content;
    border: 1px solid rgba(15, 23, 42, 0.02);
}

.tab-btn {
    background: none;
    border: none;
    padding: 12px 24px;
    font-family: var(--primary-font);
    font-size: 14px;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 12px;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 10px;
}

.tab-btn:hover {
    color: var(--text-main);
}

/* Active Segment Floating Standard */
.tab-btn.active {
    background: var(--surface-card);
    color: var(--brand-accent);
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.05);
}

.tab-btn:active {
    transform: scale(0.96);
}

/* Panels Rendering Container */
.tab-panel {
    display: none;
    background: var(--surface-card);
    border: 1px solid var(--border-token);
    border-radius: var(--radius-xl);
    padding: 35px;
    box-shadow: var(--shadow-sm);
}

.tab-panel.active {
    display: block;
    animation: appSlideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.panel-header {
    margin-bottom: 28px;
    border-bottom: 1px solid var(--border-token);
    padding-bottom: 18px;
}

.panel-header h3 {
    font-size: 20px;
    font-weight: 800;
    margin: 0 0 6px 0;
    color: var(--text-main);
    letter-spacing: -0.5px;
}

.panel-subtitle {
    margin: 0;
    font-size: 13.5px;
    color: var(--text-muted);
    font-weight: 500;
}

.panel-list-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Dynamic Grid Layout Injection for Property Cards */
.listings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

/* App Stream State Loaders */
.panel-loader {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
    font-size: 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    font-weight: 600;
}

.panel-loader i {
    font-size: 26px;
    color: var(--brand-accent);
    animation: spin 1s linear infinite;
}

/* --- STRUCTURED PREMIUM COMPONENT CARD --- */
.item-card {
    background: var(--surface-card);
    border: 1px solid var(--border-token);
    border-radius: var(--radius-lg);
    padding: 22px;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.item-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: #cbd5e1;
}

.item-card:active {
    transform: scale(0.99);
}

/* ========================================================================= */
/* SYSTEM ANIMATIONS & RESPONSIVE BREAKPOINTS ENGINE                         */
/* ========================================================================= */
@keyframes appSlideUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Tablet & Mobile Screens Conversion Matrix */
@media (max-width: 992px) {
    .profile-container {
        grid-template-columns: 1fr;
        margin: 24px auto;
        gap: 24px;
        padding: 0 16px;
    }
    
    .profile-sidebar {
        padding: 28px 20px;
        border-radius: var(--radius-lg);
    }
    
    .profile-tabs-nav {
        width: 100%;
        overflow-x: auto;
        white-space: nowrap;
        scrollbar-width: none;
        -webkit-overflow-scrolling: touch;
    }
    
    .profile-tabs-nav::-webkit-scrollbar {
        display: none;
    }
    
    .tab-btn {
        flex: 1;
        justify-content: center;
        padding: 10px 18px;
        font-size: 13px;
    }
    
    .tab-panel {
        padding: 24px 16px;
        border-radius: var(--radius-lg);
    }
}