/* ===================================
   TODOSIGN - PREMIUM SIDEBAR
   Unified Design System - Cyan/Indigo
   Typography: Plus Jakarta Sans + DM Sans
=================================== */
@import url('theme.css');

/* ==================== LOCAL OVERRIDES (Minimal) ==================== */
:root {
    /* Sidebar-specific dimensions only */
    --sidebar-width: 280px;
    --sidebar-collapsed-width: 80px;
}

/* ==================== KEYFRAME ANIMATIONS ==================== */
@keyframes sidebar-fade-in {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes sidebar-menu-item-enter {
    from {
        opacity: 0;
        transform: translateX(-12px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ==================== SIDEBAR CONTAINER ==================== */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;

    /* Premium Glassmorphism - Using Global Tokens */
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-right: 1px solid var(--glass-border);

    /* Layout */
    display: flex;
    flex-direction: column;
    padding: var(--space-6);

    /* Animation */
    animation: sidebar-fade-in 0.5s var(--ease-out);
    transition: all var(--transition-normal);
}

/* Ambient Glow Effect - Cyan/Indigo */
.sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: radial-gradient(ellipse at top left, var(--cyan-500-10) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
}

.sidebar::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 150px;
    background: radial-gradient(ellipse at bottom left, var(--indigo-500-10) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
}

/* ==================== LOGO SECTION ==================== */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
    padding: var(--space-2);
    position: relative;
}

.logo img {
    height: 36px;
    width: auto;
    transition: all var(--transition-normal);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.logo:hover img {
    transform: scale(1.05);
    filter: drop-shadow(0 4px 8px var(--cyan-500-30));
}

[data-theme="dark"] .logo img {
    filter: brightness(0) invert(1) drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

[data-theme="dark"] .logo:hover img {
    filter: brightness(0) invert(1) drop-shadow(0 4px 8px var(--cyan-500-40));
}

/* ==================== MENU NAVIGATION ==================== */
.menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    flex: 1;
    padding: 0;
    margin: 0;
}

/* Menu Item Base */
.menu-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border: 1px solid transparent;
    transition: all var(--transition-normal);

    /* Staggered Animation */
    animation: sidebar-menu-item-enter 0.4s var(--ease-out) both;
}

/* Staggered delays for menu items */
.menu-item:nth-child(1) { animation-delay: 0.05s; }
.menu-item:nth-child(2) { animation-delay: 0.1s; }
.menu-item:nth-child(3) { animation-delay: 0.15s; }
.menu-item:nth-child(4) { animation-delay: 0.2s; }
.menu-item:nth-child(5) { animation-delay: 0.25s; }
.menu-item:nth-child(6) { animation-delay: 0.3s; }
.menu-item:nth-child(7) { animation-delay: 0.35s; }
.menu-item:nth-child(8) { animation-delay: 0.4s; }

/* Menu Item Hover State */
.menu-item:hover {
    color: var(--text-primary);
    background: var(--glass-bg-hover);
    border-color: var(--glass-border);
    transform: translateX(4px);
}

.menu-item:hover i {
    transform: scale(1.15);
    color: var(--cyan-500);
}

/* Menu Item Active State - Cyan/Indigo Gradient */
.menu-item.active {
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--cyan-500-15) 0%, var(--indigo-500-10) 100%);
    border-color: var(--cyan-500-25);
    box-shadow:
        0 4px 12px var(--cyan-500-15),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.menu-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: 0 4px 4px 0;
    box-shadow: var(--glow-primary);
}

.menu-item.active i {
    color: var(--cyan-500);
    filter: drop-shadow(0 0 8px var(--cyan-500-50));
}

/* Menu Item Icon */
.menu-item i {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all var(--transition-spring);
    flex-shrink: 0;
}

/* Menu Item Text */
.menu-item span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: opacity var(--transition-normal);
}

/* ==================== CREATE DOCUMENT BUTTON ==================== */
.create-document {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-4) var(--space-5);
    margin-top: var(--space-6);

    /* Premium Cyan/Indigo Gradient */
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);

    /* Typography */
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    color: white !important;
    letter-spacing: 0.3px;

    /* Effects */
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow:
        0 4px 16px var(--cyan-500-35),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
    transition: all var(--transition-normal);
}

/* Shine Effect */
.create-document::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.25),
        transparent
    );
    transition: left 0.6s ease;
}

.create-document:hover::before {
    left: 100%;
}

.create-document:hover {
    transform: translateY(-2px);
    box-shadow:
        0 8px 24px var(--cyan-500-45),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    filter: brightness(1.1);
}

.create-document:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px var(--cyan-500-30);
}

.create-document i {
    font-size: 1rem;
    color: white !important;
    transition: transform var(--transition-spring);
}

.create-document:hover i {
    transform: rotate(90deg);
}

/* ==================== SIDEBAR FOOTER ==================== */
.sidebar-footer {
    margin-top: auto;
    padding-top: var(--space-4);
    border-top: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

/* ==================== USER PROFILE MINI ==================== */
.user-mini-profile {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    color: var(--text-primary);
}

.user-mini-profile:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border);
}

/* Avatar Circle - Cyan/Indigo Gradient (Sidebar specific) */
.sidebar .avatar-circle,
.sidebar-footer .avatar-circle,
.user-mini-profile .avatar-circle {
    width: 38px !important;
    height: 38px !important;
    min-width: 38px !important;
    max-width: 38px !important;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow:
        0 4px 12px var(--cyan-500-25),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: all var(--transition-normal);
}

.user-mini-profile:hover .avatar-circle {
    transform: scale(1.05);
    box-shadow:
        0 6px 16px var(--cyan-500-35),
        inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.sidebar .avatar-circle i,
.sidebar-footer .avatar-circle i,
.user-mini-profile .avatar-circle i {
    font-size: 0.9rem !important;
    color: white !important;
}

/* User Info */
.user-info {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.user-name {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-plan {
    font-family: var(--font-body);
    font-size: var(--text-xs);
    color: var(--cyan-500);
    font-weight: 500;
}

/* ==================== VERSION INDICATOR ==================== */
.app-version {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-3);
    margin-top: var(--space-2);
    border-radius: var(--radius-sm);
    background: var(--glass-bg-subtle);
    border: 1px solid var(--glass-border);
    transition: all var(--transition-normal);
}

.app-version:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
}

.app-version i {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.app-version span {
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

.app-version .version-number {
    color: var(--cyan-500);
    font-weight: 600;
}

/* ==================== PROFILE POPUP MENU ==================== */
.profile-popup-menu {
    position: absolute;
    bottom: 100px;
    left: 20px;
    width: 220px;
    background: var(--bg-elevated);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--space-2);
    display: none;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
    z-index: 102;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    animation: sidebar-fade-in 0.2s ease;
}

.profile-popup-menu.show {
    display: flex;
}

.profile-popup-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-3);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 500;
    transition: all var(--transition-normal);
}

.profile-popup-item:hover {
    background: var(--glass-bg-hover);
    color: var(--text-primary);
}

.profile-popup-item i {
    width: 18px;
    font-size: 0.95rem;
}

.profile-popup-item.logout {
    color: var(--red-500);
}

.profile-popup-item.logout:hover {
    background: var(--red-500-10);
    color: var(--red-400);
}

/* ==================== SIDEBAR TOGGLE BUTTON ==================== */
.sidebar-toggle-btn {
    position: absolute;
    top: 24px;
    right: -14px;
    width: 28px;
    height: 28px;
    background: var(--gradient-primary);
    border: 2px solid var(--bg-base);
    border-radius: 50%;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    z-index: 101;
    transition: all var(--transition-normal);
    font-size: 0.75rem;
}

.sidebar-toggle-btn:hover {
    transform: scale(1.15);
    box-shadow: var(--glow-primary);
}

/* ==================== COLLAPSED STATE ==================== */
body.sidebar-collapsed .sidebar {
    width: var(--sidebar-collapsed-width);
    padding: var(--space-6) var(--space-4);
}

body.sidebar-collapsed .logo {
    justify-content: center;
}

body.sidebar-collapsed .logo img {
    height: 32px;
}

body.sidebar-collapsed .menu-item {
    justify-content: center;
    padding: var(--space-3);
}

body.sidebar-collapsed .menu-item span {
    display: none;
}

body.sidebar-collapsed .menu-item i {
    width: auto;
}

body.sidebar-collapsed .menu-item.active::before {
    display: none;
}

body.sidebar-collapsed .create-document {
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: 50%;
    margin: var(--space-6) auto 0;
}

body.sidebar-collapsed .create-document span,
body.sidebar-collapsed .create-document i.fa-plus {
    display: none;
}

body.sidebar-collapsed .create-document::after {
    content: '+';
    font-size: 1.5rem;
    font-weight: 400;
    line-height: 1;
    color: white;
}

body.sidebar-collapsed .create-document:hover i,
body.sidebar-collapsed .create-document:hover::after {
    transform: rotate(90deg);
}

body.sidebar-collapsed .user-info {
    display: none;
}

body.sidebar-collapsed .user-mini-profile {
    justify-content: center;
    padding: var(--space-2);
}

body.sidebar-collapsed .app-version span:not(.version-number) {
    display: none;
}

body.sidebar-collapsed .app-version {
    padding: var(--space-2);
}

body.sidebar-collapsed .main-content {
    margin-left: var(--sidebar-collapsed-width);
}

/* ==================== LIGHT THEME ==================== */
[data-theme="light"] .sidebar {
    background: var(--glass-bg);
    border-right-color: var(--glass-border);
}

[data-theme="light"] .sidebar::before {
    background: radial-gradient(ellipse at top left, var(--cyan-500-08) 0%, transparent 60%);
}

[data-theme="light"] .sidebar::after {
    background: radial-gradient(ellipse at bottom left, var(--indigo-500-06) 0%, transparent 60%);
}

[data-theme="light"] .logo img {
    filter: none;
}

[data-theme="light"] .logo:hover img {
    filter: drop-shadow(0 4px 8px var(--cyan-500-20));
}

[data-theme="light"] .menu-item {
    color: var(--text-secondary);
}

[data-theme="light"] .menu-item:hover {
    color: var(--text-primary);
    background: var(--glass-bg-hover);
    border-color: var(--glass-border);
}

[data-theme="light"] .menu-item.active {
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--cyan-500-10) 0%, var(--indigo-500-06) 100%);
    border-color: var(--cyan-500-20);
    box-shadow:
        0 4px 12px var(--cyan-500-10),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

[data-theme="light"] .menu-item.active i {
    color: var(--cyan-600);
}

[data-theme="light"] .sidebar-footer {
    border-top-color: var(--glass-border);
}

[data-theme="light"] .user-mini-profile {
    color: var(--text-primary);
}

[data-theme="light"] .user-mini-profile:hover {
    background: var(--glass-bg-hover);
}

[data-theme="light"] .user-name {
    color: var(--text-primary);
}

[data-theme="light"] .user-plan {
    color: var(--cyan-600);
}

[data-theme="light"] .app-version {
    background: var(--glass-bg-subtle);
    border-color: var(--glass-border);
}

[data-theme="light"] .app-version:hover {
    background: var(--glass-bg-hover);
}

[data-theme="light"] .app-version i,
[data-theme="light"] .app-version span {
    color: var(--text-muted);
}

[data-theme="light"] .app-version .version-number {
    color: var(--cyan-600);
}

[data-theme="light"] .profile-popup-menu {
    background: var(--bg-surface);
    border-color: var(--glass-border);
    box-shadow:
        0 10px 40px rgba(0, 0, 0, 0.12),
        0 0 0 1px rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .profile-popup-item {
    color: var(--text-secondary);
}

[data-theme="light"] .profile-popup-item:hover {
    background: var(--glass-bg-hover);
    color: var(--text-primary);
}

[data-theme="light"] .sidebar-toggle-btn {
    border-color: var(--bg-surface);
}

/* ==================== REDUCED MOTION ==================== */
@media (prefers-reduced-motion: reduce) {
    .sidebar,
    .menu-item,
    .create-document,
    .user-mini-profile,
    .avatar-circle,
    .logo img {
        animation: none !important;
        transition: none !important;
    }

    .create-document::before {
        display: none;
    }
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        box-shadow: var(--shadow-xl);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-toggle-btn {
        display: none;
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        max-width: 300px;
    }
}