/* ========================================
   MAIN LAYOUT STYLES
   ======================================== */

/* ========================================
   LOGIN SCREEN
   ======================================== */

#login-screen {
    justify-content: center;
    align-items: center;
    background: radial-gradient(
        ellipse at center,
        var(--nv-dark-green) 0%,
        var(--nv-black) 70%
    );
}

.login-container {
    width: 100%;
    max-width: 500px;
    padding: var(--spacing-xl);
}

.logo {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.ascii-logo {
    font-size: 8px;
    line-height: 1.2;
    color: var(--nv-green);
    text-shadow: 0 0 10px var(--nv-green-glow-strong);
    margin-bottom: var(--spacing-md);
    animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {
    0%, 100% {
        text-shadow: 0 0 10px var(--nv-green-glow-strong);
    }
    50% {
        text-shadow: 0 0 20px var(--nv-green-glow-strong), 0 0 30px var(--nv-green-glow);
    }
}

.tagline {
    font-size: var(--font-size-xs);
    color: var(--nv-green-dim);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.login-form {
    margin-bottom: var(--spacing-lg);
}

.system-info {
    text-align: center;
    font-size: var(--font-size-xs);
    color: var(--nv-green-darker);
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-md);
}

.system-info p {
    margin-bottom: var(--spacing-xs);
}

.status-online {
    color: var(--nv-green);
    text-shadow: 0 0 4px var(--nv-green-glow);
}

.status-secure {
    color: var(--nv-green);
    text-shadow: 0 0 4px var(--nv-green-glow);
}

.btn-loading {
    opacity: 0.6;
}

/* ========================================
   EMAIL SCREEN
   ======================================== */

#email-screen {
    flex-direction: column;
}

/* ========================================
   HEADER
   ======================================== */

.main-header {
    background-color: var(--nv-dark-green);
    border-bottom: 2px solid var(--nv-green-darker);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.header-left {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-md);
}

.header-title {
    font-size: var(--font-size-xl);
    color: var(--nv-green);
    text-shadow: 0 0 8px var(--nv-green-glow);
    letter-spacing: 2px;
}

.header-subtitle {
    font-size: var(--font-size-xs);
    color: var(--nv-green-darker);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--nv-green-dim);
}

.user-info .indicator {
    width: 8px;
    height: 8px;
    background-color: var(--nv-green);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--nv-green-glow);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ========================================
   MAIN CONTENT AREA
   ======================================== */

.main-content {
    display: grid;
    grid-template-columns: 250px 400px 1fr;
    height: calc(100vh - 70px);
    overflow: hidden;
}

/* ========================================
   SIDEBAR
   ======================================== */

.sidebar {
    background-color: var(--nv-darker-green);
    border-right: 1px solid var(--border-color);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.folder-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.folder-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: transparent;
    border: 1px solid transparent;
    color: var(--nv-green-dim);
    text-align: left;
    transition: all var(--transition-fast);
}

.folder-item:hover {
    background-color: var(--nv-dark-green);
    border-color: var(--nv-green-darker);
    color: var(--nv-green);
}

.folder-item.active {
    background-color: var(--nv-dark-green);
    border-color: var(--nv-green-dim);
    color: var(--nv-green);
    box-shadow: 0 0 8px var(--nv-green-glow);
}

.folder-icon {
    font-size: var(--font-size-sm);
}

.folder-name {
    flex: 1;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.folder-count {
    font-size: var(--font-size-xs);
    background-color: var(--nv-green-darker);
    padding: 2px 6px;
    border-radius: 2px;
    min-width: 20px;
    text-align: center;
}

.folder-item.active .folder-count {
    background-color: var(--nv-green-dim);
    color: var(--nv-black);
}

.sidebar-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: var(--spacing-md) 0;
}

/* Aliases Section */
.aliases-section {
    margin-top: var(--spacing-md);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.section-header h3 {
    font-size: var(--font-size-xs);
    color: var(--nv-green-darker);
    letter-spacing: 1px;
}

.aliases-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    max-height: 200px;
    overflow-y: auto;
}

.alias-item {
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--nv-dark-green);
    border: 1px solid var(--border-color);
    font-size: var(--font-size-xs);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xs);
}

.alias-email {
    color: var(--nv-green-dim);
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.alias-delete {
    color: var(--nv-red);
    font-size: var(--font-size-sm);
    padding: 2px;
}

.alias-delete:hover {
    text-shadow: 0 0 6px var(--nv-red-glow);
}

/* ========================================
   EMAIL LIST PANEL
   ======================================== */

.email-list-panel {
    background-color: var(--nv-black);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.panel-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--nv-darker-green);
}

.panel-header h2 {
    font-size: var(--font-size-lg);
    color: var(--nv-green);
    letter-spacing: 1px;
}

.panel-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.email-list {
    flex: 1;
    overflow-y: auto;
}

.loading-placeholder {
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--nv-green-darker);
}

.loading-bar {
    width: 200px;
    height: 2px;
    background-color: var(--nv-darker-green);
    margin: var(--spacing-md) auto;
    position: relative;
    overflow: hidden;
}

.loading-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    background-color: var(--nv-green);
    box-shadow: 0 0 8px var(--nv-green-glow);
    animation: loading 1.5s ease-in-out infinite;
}

@keyframes loading {
    0% {
        left: -50%;
    }
    100% {
        left: 100%;
    }
}

.email-item {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.email-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background-color: transparent;
    transition: background-color var(--transition-fast);
}

.email-item:hover {
    background-color: var(--nv-darker-green);
}

.email-item.active {
    background-color: var(--nv-dark-green);
}

.email-item.active::before {
    background-color: var(--nv-green);
    box-shadow: 0 0 8px var(--nv-green-glow);
}

.email-item.unread {
    color: var(--nv-green);
}

.email-item.read {
    color: var(--nv-green-dim);
}

.email-item-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: var(--spacing-xs);
}

.email-from {
    font-weight: bold;
    font-size: var(--font-size-base);
}

.email-time {
    font-size: var(--font-size-xs);
    color: var(--nv-green-darker);
}

.email-subject {
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.email-preview {
    font-size: var(--font-size-xs);
    color: var(--nv-green-darker);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.email-flags {
    margin-top: var(--spacing-xs);
    display: flex;
    gap: var(--spacing-xs);
}

.flag-icon {
    font-size: var(--font-size-xs);
}

.flag-icon.starred {
    color: var(--nv-amber);
    text-shadow: 0 0 4px rgba(255, 170, 0, 0.5);
}

/* ========================================
   EMAIL DETAIL PANEL
   ======================================== */

.email-detail-panel {
    background-color: var(--nv-black);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.detail-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--nv-green-darker);
}

.detail-empty p {
    font-size: var(--font-size-lg);
    letter-spacing: 2px;
    margin-bottom: var(--spacing-lg);
}

.empty-icon {
    font-size: 64px;
    opacity: 0.3;
}

.detail-content {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.detail-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background-color: var(--nv-darker-green);
}

.detail-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.detail-header .email-subject {
    font-size: var(--font-size-xl);
    color: var(--nv-green);
    letter-spacing: 0.5px;
}

.detail-meta {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--nv-darker-green);
    border-bottom: 1px solid var(--border-color);
}

.meta-row {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.meta-label {
    color: var(--nv-green-darker);
    min-width: 60px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.meta-value {
    color: var(--nv-green-dim);
}

.detail-divider {
    height: 1px;
    background: linear-gradient(
        to right,
        transparent,
        var(--nv-green-darker),
        transparent
    );
}

.email-body {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
    color: var(--nv-green);
    line-height: 1.8;
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* Email body HTML content styling */
.email-body p {
    margin-bottom: var(--spacing-md);
}

.email-body a {
    color: var(--nv-blue);
    text-decoration: underline;
}

.email-body a:hover {
    text-shadow: 0 0 4px rgba(0, 204, 255, 0.5);
}

/* ========================================
   RESPONSIVE ADJUSTMENTS
   ======================================== */

@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 220px 350px 1fr;
    }
}

@media (max-width: 900px) {
    .main-content {
        grid-template-columns: 200px 1fr;
    }

    .email-detail-panel {
        display: none;
    }

    /* Show detail panel when email is selected on mobile */
    .email-detail-panel.mobile-visible {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: 1000;
    }
}

@media (max-width: 600px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .sidebar {
        display: none;
    }

    /* Mobile sidebar toggle */
    .sidebar.mobile-visible {
        display: flex;
        position: fixed;
        top: 70px;
        left: 0;
        width: 250px;
        height: calc(100vh - 70px);
        z-index: 999;
    }
}