/**
 * File: assets/css/study-room.css
 * Description: Main Stylesheet for Study Room Component Layout, Floating Header Tabs, Drawers, Floating Badges, and Bento Grids
 */

/* =========================================================
   1. TOP BAR & DASHBOARD DROPDOWN MENU STYLES
   ========================================================= */
.ssd-top-dash-btn {
    background: var(--ssd-card);
    color: var(--ssd-primary);
    border: 1px solid var(--ssd-border);
    width: 40px; height: 40px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: 0.2s;
    position: relative;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}
.ssd-top-dash-btn:hover {
    background: var(--ssd-primary);
    color: white;
    border-color: var(--ssd-primary);
}
.ssd-top-dash-btn i {
    font-size: 1.1rem;
    display: inline-block;
}

.ssd-mobile-nav-wrapper {
    position: relative !important;
    margin-right: 12px;
}

.ssd-mobile-dash-dropdown {
    position: fixed !important; 
    top: 75px !important; 
    left: 80px; 
    background: var(--ssd-card); border: 1px solid var(--ssd-border); 
    border-radius: 16px; padding: 16px; width: 280px;
    display: none !important; flex-direction: column; gap: 12px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.7); 
    transform-origin: top left;
    z-index: 999999999 !important; 
    pointer-events: auto !important;
}
.ssd-mobile-dash-dropdown.active { display: flex !important; }
.ssd-dash-icons-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }

@media (max-width: 768px) {
    .ssd-mobile-dash-dropdown {
        left: 15px !important; 
        top: 65px !important;
    }
}

.ssd-mob-icon {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 1.3rem !important;
    height: 45px;
    background: var(--ssd-box-bg);
    border-radius: 10px;
    cursor: pointer;
    transition: 0.2s;
}
.ssd-mob-icon:hover { filter: brightness(1.2); }
.ssd-mob-icon i {
    font-family: "Font Awesome 5 Free", "Font Awesome 6 Free", "FontAwesome" !important;
    font-weight: 900 !important;
}

#ssd-dashboard-noti-badge {
    position: absolute; top: -4px; right: -4px;
    background: #ef4444; color: white;
    font-size: 0.65rem; font-weight: bold;
    padding: 2px 6px; border-radius: 10px;
    z-index: 1000; min-width: 14px; text-align: center;
    line-height: 1.2; box-shadow: 0 2px 4px rgba(0,0,0,0.3);
    display: none;
    border: 2px solid var(--ssd-card);
}

/* =========================================================
   2. FLOATING TRANSPARENT TABS HEADER PANEL (NO SHADOW)
   ========================================================= */
.ssd-floating-tabs-panel {
    position: absolute; 
    top: 15px; 
    left: 50%; 
    transform: translateX(-50%);
    display: flex; 
    align-items: center; 
    gap: 12px;
    background: rgba(255, 255, 255, 0.08) !important; 
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    border: 1px solid rgba(255, 255, 255, 0.15) !important;
    border-radius: 40px !important; 
    padding: 6px 14px !important;
    box-shadow: none !important; 
    z-index: 1000;
}

body.light-mode .ssd-floating-tabs-panel {
    background: rgba(255, 255, 255, 0.45) !important;
    border: 1px solid rgba(0, 0, 0, 0.08) !important;
}

.ssd-back-circle-btn {
    background: rgba(255, 255, 255, 0.12) !important; 
    border: none !important; 
    color: var(--ssd-text) !important;
    width: 32px; 
    height: 32px; 
    border-radius: 50%; 
    display: flex;
    align-items: center; 
    justify-content: center; 
    font-size: 0.9rem;
    cursor: pointer; 
    transition: all 0.2s ease; 
    flex-shrink: 0;
    box-shadow: none !important;
}

.ssd-back-circle-btn:hover {
    background: var(--ssd-primary) !important; 
    color: white !important;
}

.ssd-tools-tabs {
    display: flex;
    align-items: center;
    gap: 6px;
}

.ssd-tool-tab {
    background: transparent !important;
    border: none !important;
    color: var(--ssd-text-muted) !important;
    padding: 6px 16px !important;
    font-size: 0.88rem !important;
    font-weight: 600 !important;
    border-radius: 20px !important;
    cursor: pointer !important;
    transition: all 0.25s ease !important;
    box-shadow: none !important;
}

.ssd-tool-tab:hover {
    color: var(--ssd-text) !important;
    background: rgba(255, 255, 255, 0.05) !important;
}

.ssd-tool-tab.active {
    color: var(--ssd-primary) !important;
    background: rgba(59, 130, 246, 0.15) !important;
    backdrop-filter: blur(4px);
}

/* =========================================================
   3. USER CARDS & VIDEO STYLES
   ========================================================= */
.ssd-overlay-bottom {
    background: transparent !important;
    box-shadow: none !important;
    border: none !important;
}

.ssd-user-card.video-active .ssd-overlay-bottom {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.4) 60%, transparent 100%) !important;
    padding-top: 30px !important;
    border-radius: 0 0 28px 28px !important;
}

body.light-mode .ssd-user-card.video-active .ssd-overlay-bottom,
.body.light-mode .ssd-user-card.video-active .ssd-overlay-bottom {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.4) 60%, transparent 100%) !important;
}

.ssd-user-card.video-active .ssd-name-tag, 
.ssd-user-card.video-active .ssd-name-tag span,
body.light-mode .ssd-user-card.video-active .ssd-name-tag,
body.light-mode .ssd-user-card.video-active .ssd-name-tag span {
    color: #ffffff !important;
    background: transparent !important;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.8) !important;
}

.ssd-overlay-time {
    background: var(--ssd-box-bg);
    color: var(--ssd-text);
    text-shadow: none;
    border-radius: 8px;
    font-weight: 700;
}
.ssd-user-card.video-active .ssd-overlay-time {
    background: rgba(0, 0, 0, 0.6) !important;
    color: #ffffff !important;
    text-shadow: none !important;
}
.ssd-name-tag { font-weight: 700; color: var(--ssd-text); text-shadow: none; }

.ssd-rank-badge {
    background: #fbbf24 !important;
    color: #000000 !important;
    font-weight: 800 !important;
    border: none !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.5) !important;
}

.ssd-action-pin-btn {
    opacity: 0 !important;
    visibility: hidden !important;
    width: 24px !important;
    height: 24px !important;
    padding: 0 !important;
    font-size: 0.65rem !important;
    transition: 0.2s ease-in-out !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: var(--ssd-box-bg) !important;
}
.ssd-user-card:hover .ssd-action-pin-btn {
    opacity: 1 !important;
    visibility: visible !important;
}
.ssd-action-pin-btn.active-pin {
    opacity: 1 !important;
    visibility: visible !important;
    color: #fbbf24 !important;
    background: rgba(251, 191, 36, 0.2) !important;
}

/* =========================================================
   4. BENTO GRID LAYOUT & RESPONSIVE DESIGN
   ========================================================= */
.ssd-mobile-fade-top, .ssd-mobile-fade-bottom { display: none; }
@media (max-width: 768px) {
    .ssd-mobile-fade-top {
        display: block; position: fixed; top: 0; left: 0; right: 0; height: 75px;
        background: linear-gradient(to bottom, var(--ssd-bg) 75%, transparent 100%);
        z-index: 45; pointer-events: none;
    }
    body.light-mode .ssd-mobile-fade-top {
        background: linear-gradient(to bottom, #f3f4f6 75%, transparent 100%) !important;
    }
    .ssd-mobile-fade-bottom {
        display: block; position: fixed; bottom: 0; left: 0; right: 0; height: 90px;
        background: linear-gradient(to top, var(--ssd-bg) 75%, transparent 100%);
        z-index: 45; pointer-events: none;
    }
    body.light-mode .ssd-mobile-fade-bottom {
        background: linear-gradient(to top, #f3f4f6 75%, transparent 100%) !important;
    }
    .ssd-grid-container {
        padding: 85px 10px 100px 10px !important; 
    }
}

#participants-grid.layout-custom-bento { display: grid !important; gap: 15px !important; }
#participants-grid.layout-custom-bento .ssd-user-card:nth-child(1) .ssd-card-inner-content { display: none !important; }

.ssd-main-box-loop-video {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    object-fit: cover; z-index: 1; border-radius: inherit; pointer-events: none;
}

@media (min-width: 769px) {
    #participants-grid.layout-custom-bento {
        grid-template-columns: repeat(4, 1fr) !important;
        grid-template-rows: repeat(4, minmax(100px, 1fr)) !important;
    }
    #participants-grid.layout-custom-bento .ssd-user-card:nth-child(1) { grid-column: 1 / 4 !important; grid-row: 1 / 4 !important; min-height: 400px !important; }
    #participants-grid.layout-custom-bento .ssd-user-card:nth-child(2) { grid-column: 4; grid-row: 1; }
    #participants-grid.layout-custom-bento .ssd-user-card:nth-child(3) { grid-column: 4; grid-row: 2; }
    #participants-grid.layout-custom-bento .ssd-user-card:nth-child(4) { grid-column: 4; grid-row: 3; }
    #participants-grid.layout-custom-bento .ssd-user-card:nth-child(5) { grid-column: 1; grid-row: 4; }
    #participants-grid.layout-custom-bento .ssd-user-card:nth-child(6) { grid-column: 2; grid-row: 4; }
    #participants-grid.layout-custom-bento .ssd-user-card:nth-child(7) { grid-column: 3; grid-row: 4; }
    #participants-grid.layout-custom-bento .ssd-user-card:nth-child(8) { grid-column: 4; grid-row: 4; }
    #participants-grid.layout-custom-bento .ssd-user-card:nth-child(n+9) { display: none !important; }
    #participants-grid.layout-custom-bento { padding-top: 15px !important; }
}

@media (max-width: 768px) {
    #participants-grid.layout-custom-bento { display: grid !important; grid-template-columns: repeat(2, 1fr) !important; gap: 10px !important; }
    #participants-grid.layout-custom-bento .ssd-user-card { width: 100% !important; grid-column: span 1 !important; order: 2 !important; min-height: 140px !important; }
    #participants-grid.layout-custom-bento .ssd-user-card:first-child { grid-column: span 2 !important; width: 100% !important; order: 1 !important; min-height: 250px !important; }
}

/* =========================================================
   5. SWITCH & NOTIFICATIONS PANEL
   ========================================================= */
.ssd-switch { position: relative; display: inline-block; width: 36px; height: 20px; margin-bottom: 0; }
.ssd-switch input { opacity: 0; width: 0; height: 0; }
.ssd-switch .ssd-slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--ssd-border); transition: .4s; border-radius: 34px; }
.ssd-switch .ssd-slider:before { position: absolute; content: ""; height: 14px; width: 14px; left: 3px; bottom: 3px; background-color: white; transition: .4s; border-radius: 50%; box-shadow: 0 2px 4px rgba(0,0,0,0.2); }
.ssd-switch input:checked + .ssd-slider { background-color: var(--ssd-primary); }
.ssd-switch input:checked + .ssd-slider:before { transform: translateX(16px); }

.ssd-dropdown-noti-container { border-top: 1px solid var(--ssd-border); margin-top: 10px; padding-top: 10px; display: flex; flex-direction: column; gap: 8px; }
.ssd-dropdown-noti-header { display: flex; justify-content: space-between; align-items: center; font-size: 0.8rem; font-weight: 700; color: var(--ssd-text); }
.ssd-dropdown-noti-clear { background: none; border: none; color: var(--ssd-text-muted); font-size: 0.7rem; cursor: pointer; transition: 0.2s; }
.ssd-dropdown-noti-clear:hover { color: #ef4444; }
#ssd-dropdown-noti-list { max-height: 180px; overflow-y: auto; display: flex; flex-direction: column; gap: 6px; }

#ssd-guest-login-overlay { background: transparent !important; backdrop-filter: none !important; }
.guest-login-drawer { position: fixed; z-index: 9999999; background: var(--ssd-card); display: flex; flex-direction: column; align-items: center; text-align: center; padding: 30px 25px; transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); }

@media (min-width: 769px) {
    .guest-login-drawer { top: 50%; left: 50%; transform: translate(-50%, -50%) scale(0.9); width: 400px; border-radius: 24px; opacity: 0; visibility: hidden; box-shadow: 0 10px 40px rgba(0,0,0,0.2); }
    .guest-login-drawer.active { transform: translate(-50%, -50%) scale(1); opacity: 1; visibility: visible; }
}
@media (max-width: 768px) {
    .guest-login-drawer { bottom: -100%; left: 0; width: 100%; height: auto; border-radius: 30px 30px 0 0; justify-content: flex-start; padding: 35px 25px 50px 25px; box-shadow: 0 -10px 40px rgba(0,0,0,0.15); }
    .guest-login-drawer.active { bottom: 0; }
}

/* =========================================================
   6. DRAWERS & LEADERBOARD OVERLAYS
   ========================================================= */
#ssd-leaderboard-drawer-overlay {
    position: fixed; top: 0; left: 0;
    width: 100vw; height: 100vh;
    background: rgba(0, 0, 0, 0.4);
    z-index: 999998; display: none; opacity: 0;
    transition: opacity 0.3s ease;
}

#ssd-leaderboard-drawer {
    position: fixed; background: var(--ssd-card); border: none;
    z-index: 999999; display: flex; flex-direction: column;
    box-shadow: 0 0 40px rgba(0,0,0,0.5);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.ssd-drawer-body { 
    flex: 1; width: 100%; height: 100%; 
    background: var(--ssd-bg); position: relative;
    display: flex; flex-direction: column; 
    overflow: hidden; 
}

#ssd-leaderboard-iframe { 
    flex: 1; width: 100%; height: 100%; border: none; 
    background: transparent; overflow-y: auto; display: block;
}

@media (min-width: 769px) {
    #ssd-leaderboard-iframe::-webkit-scrollbar { width: 6px !important; height: 6px !important; display: block !important; }
    #ssd-leaderboard-iframe::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.03) !important; border-radius: 10px !important; }
    #ssd-leaderboard-iframe::-webkit-scrollbar-thumb { background: var(--ssd-primary, #3b82f6) !important; border-radius: 10px !important; }
}

.ssd-drawer-handle {
    position: absolute; background: #3b82f6 !important; 
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    z-index: 100; transition: all 0.3s ease; 
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}
.ssd-drawer-handle i { font-size: 1.1rem; color: #ffffff !important; transition: transform 0.4s ease; }

@media (max-width: 768px) {
    #ssd-leaderboard-drawer { top: auto; right: 0; left: 0; bottom: -70vh; width: 100%; height: 70vh; border-radius: 24px 24px 0 0; border-top: 1px solid var(--ssd-border); }
    #ssd-leaderboard-drawer.active { bottom: 0; }
    .ssd-drawer-handle { top: -32px; left: 50%; transform: translateX(-50%); width: 65px; height: 32px; border-radius: 16px 16px 0 0; }
    #ssd-leaderboard-drawer.active #ssd-drawer-arrow-icon { transform: rotate(180deg); }
    #ssd-leaderboard-iframe::-webkit-scrollbar { display: none !important; width: 0 !important; height: 0 !important; }
}

@media (min-width: 769px) {
    #ssd-leaderboard-drawer { top: 0; right: -420px; width: 420px; height: 100vh; border-radius: 24px 0 0 24px; border-left: 1px solid var(--ssd-border); }
    #ssd-leaderboard-drawer.active { right: 0; }
    .ssd-drawer-handle { left: -30px; top: 50%; transform: translateY(-50%); width: 30px; height: 80px; border-radius: 15px 0 0 15px; }
    #ssd-leaderboard-drawer.active #ssd-drawer-arrow-icon { transform: rotate(180deg); }
}

@media (max-width: 768px) {
    #ssd-profile-drawer { top: auto; right: 0; left: 0; bottom: -70vh; width: 100%; height: 70vh; border-radius: 24px 24px 0 0; border-top: 1px solid var(--ssd-border); }
    #ssd-profile-drawer.active { bottom: 0; }
    .ssd-profile-drawer-handle { top: -32px; left: 50%; transform: translateX(-50%); width: 65px; height: 32px; border-radius: 16px 16px 0 0; }
}
@media (min-width: 769px) {
    #ssd-profile-drawer { top: 0; right: -450px; width: 450px; height: 100vh; border-radius: 24px 0 0 24px; border-left: 1px solid var(--ssd-border); }
    #ssd-profile-drawer.active { right: 0; }
    .ssd-profile-drawer-handle { left: -30px; top: 50%; transform: translateY(-50%); width: 30px; height: 80px; border-radius: 15px 0 0 15px; }
}
#ssd-profile-drawer .ssd-drawer-body { padding: 0px !important; overflow: hidden !important; }

@media (max-width: 768px) {
    #ssd-users-drawer { top: auto; right: 0; left: 0; bottom: -70vh; width: 100%; height: 70vh; border-radius: 24px 24px 0 0; border-top: 1px solid var(--ssd-border); }
    #ssd-users-drawer.active { bottom: 0; }
    .ssd-users-drawer-handle { top: -32px; left: 50%; transform: translateX(-50%); width: 65px; height: 32px; border-radius: 16px 16px 0 0; }
    #ssd-drawer-users-list::-webkit-scrollbar { display: none !important; width: 0 !important; height: 0 !important; }
}
@media (min-width: 769px) {
    #ssd-users-drawer { top: 0; right: -400px; width: 400px; height: 100vh; border-radius: 24px 0 0 24px; border-left: 1px solid var(--ssd-border); }
    #ssd-users-drawer.active { right: 0; }
    .ssd-users-drawer-handle { left: -30px; top: 50%; transform: translateY(-50%); width: 30px; height: 80px; border-radius: 15px 0 0 15px; }
}
.ssd-drawer-user-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 12px; background: var(--ssd-box-bg); border-radius: 12px;
    transition: background 0.2s ease;
}
.ssd-drawer-user-item:hover { background: rgba(59, 130, 246, 0.08); }

.ssd-profile-drawer-handle { opacity: 0; visibility: hidden; transition: all 0.3s ease; }
#ssd-profile-drawer.active .ssd-profile-drawer-handle { opacity: 1; visibility: visible; }

#ssd-profile-drawer:not(.active) .ssd-profile-drawer-handle,
#ssd-users-drawer:not(.active) .ssd-users-drawer-handle {
    opacity: 0 !important; visibility: hidden !important; box-shadow: none !important;
}

/* EMOJI TOGGLE BUTTON */
#ssd-room-emoji-toggle-btn { transition: transform 0.2s ease, color 0.2s ease; }
#ssd-room-emoji-toggle-btn:hover { color: var(--ssd-primary) !important; transform: scale(1.15); }