/* Özel Ders Paneli Style System */
:root {
    --bg-main: #0b0f19;
    --bg-card: rgba(22, 28, 45, 0.7);
    --bg-card-hover: rgba(30, 39, 62, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-highlight: rgba(99, 102, 241, 0.4);
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.3);
    --accent-blue: #3b82f6;
    --accent-green: #10b981;
    --accent-yellow: #f59e0b;
    --accent-red: #ef4444;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --sidebar-width: 260px;
    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
}

body.modal-open {
    overflow: hidden;
}

/* App Wrapper */
.app-container {
    display: flex;
    width: 100vw;
    min-height: 100vh;
    background: radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.12) 0%, transparent 40%),
                radial-gradient(circle at 85% 85%, rgba(59, 130, 246, 0.12) 0%, transparent 40%);
}

/* Sidebar Navigation */
.app-sidebar {
    width: var(--sidebar-width);
    background: rgba(15, 21, 37, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-color);
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.brand-section {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.brand-logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--primary);
    object-fit: cover;
}

.brand-info h2 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.01em;
}

.brand-info span {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
}

.nav-item:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.nav-item.active {
    color: #ffffff;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.25) 0%, rgba(59, 130, 246, 0.15) 100%);
    border-color: var(--border-highlight);
    box-shadow: 0 4px 15px var(--primary-glow);
}

.nav-item svg {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

.sidebar-footer {
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

/* Main Content Area */
.app-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 32px 40px;
    min-height: 100vh;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.user-welcome h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: #ffffff;
}

.user-welcome p {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.user-profile-badge {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 40px;
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366f1, #3b82f6);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.role-tag {
    font-size: 0.72rem;
    padding: 3px 8px;
    border-radius: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.role-tag.teacher {
    background: rgba(16, 185, 129, 0.2);
    color: #34d399;
}

.role-tag.student {
    background: rgba(99, 102, 241, 0.2);
    color: #818cf8;
}

/* Panel Sections */
.tab-section {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-section.active {
    display: block;
}

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

/* Cards & Grid Layout */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.panel-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition);
}

.panel-card:hover {
    border-color: var(--border-highlight);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #ffffff;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
}

.badge-green { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.badge-blue { background: rgba(59, 130, 246, 0.15); color: #60a5fa; }
.badge-yellow { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    color: #ffffff;
    box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #4338ca 100%);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-meet {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #ffffff;
    width: 100%;
    margin-top: 16px;
    padding: 12px;
}

.btn-meet:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

/* Video Player Container (Restricted Embed) */
.video-player-box {
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #000000;
    border: 1px solid var(--border-color);
    position: relative;
    padding-top: 56.25%; /* 16:9 Aspect Ratio */
}

.video-player-box iframe,
.video-player-box video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Geçmiş Dersler: liste ve ders içeriği */
.lesson-archive-card {
    width: 100%;
    grid-column: 1 / -1;
    color: inherit;
    text-align: left;
    cursor: pointer;
    font: inherit;
}

.lesson-archive-meta {
    display: block;
    margin-top: 5px;
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.lesson-open-arrow {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(99, 102, 241, 0.15);
    color: #a5b4fc;
    font-size: 1.2rem;
}

.lesson-archive-stats,
.lesson-panel-heading {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.lesson-open-label {
    margin-left: auto;
    color: #a5b4fc;
    font-size: 0.84rem;
    font-weight: 600;
}

.lesson-detail-shell {
    grid-column: 1 / -1;
    width: 100%;
}

.lesson-detail-loading {
    grid-column: 1 / -1;
    text-align: center;
}

.lesson-detail-top {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 18px;
}

.lesson-detail-top h2 {
    color: #fff;
    font-size: 1.45rem;
}

.lesson-detail-top p {
    color: var(--text-secondary);
    margin-top: 4px;
    font-size: 0.86rem;
}

.lesson-content-layout {
    display: grid;
    grid-template-columns: minmax(420px, 2.1fr) minmax(250px, 0.95fr);
    gap: 16px;
    align-items: start;
}

.lesson-content-panel,
.lesson-video-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 16px;
}

.lesson-content-panel h3 {
    color: #fff;
    font-size: 0.98rem;
    margin-bottom: 14px;
}

.lesson-recording-list,
.lesson-file-list,
.lesson-content-side {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.lesson-recording-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 12px;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid transparent;
    border-radius: 10px;
    text-align: left;
    cursor: pointer;
}

.lesson-recording-item.active,
.lesson-recording-item:hover {
    background: rgba(99, 102, 241, 0.14);
    border-color: rgba(99, 102, 241, 0.35);
}

.lesson-recording-item strong,
.lesson-file-item strong {
    display: block;
    color: #fff;
    font-size: 0.79rem;
    line-height: 1.35;
}

.lesson-recording-item small,
.lesson-file-item small {
    display: block;
    color: var(--text-muted);
    margin-top: 3px;
    font-size: 0.7rem;
}

.lesson-material-icon {
    flex: 0 0 28px;
    color: #818cf8;
}

.lesson-access-badge {
    margin-bottom: 12px;
    padding: 8px 12px;
    border: 1px solid rgba(16, 185, 129, 0.32);
    border-radius: 9px;
    color: #34d399;
    background: rgba(16, 185, 129, 0.1);
    font-size: 0.78rem;
    text-align: center;
}

.lesson-video-empty {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: var(--text-secondary);
    padding: 24px;
    text-align: center;
}

.lesson-video-caption {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    padding-top: 12px;
}

.lesson-video-caption h3 {
    color: #fff;
    font-size: 0.98rem;
}

.lesson-video-caption span {
    color: var(--text-muted);
    font-size: 0.78rem;
    white-space: nowrap;
}

.lesson-panel-heading {
    justify-content: space-between;
    margin-bottom: 12px;
}

.lesson-panel-heading h3 {
    margin-bottom: 0;
}

.lesson-file-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.035);
    border-radius: 10px;
}

.lesson-file-item a {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0;
    text-decoration: none;
}

.lesson-file-icon {
    display: grid;
    place-items: center;
    flex: 0 0 38px;
    height: 38px;
    border-radius: 8px;
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
    font-size: 0.62rem;
    font-weight: 800;
}

.lesson-file-delete {
    border: 0;
    background: transparent;
    color: #f87171;
    cursor: pointer;
    font-size: 1.1rem;
}

.lesson-empty-state,
.lesson-notes-text {
    color: var(--text-secondary);
    font-size: 0.82rem;
    line-height: 1.55;
}

.lesson-notes-input {
    resize: vertical;
    line-height: 1.5;
}

.lesson-notes-save {
    width: 100%;
    margin-top: 10px;
}

/* Lesson Homework Panel */
.lesson-homework-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.lesson-homework-card {
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 10px;
    padding: 12px;
    transition: border-color 0.2s;
}

.lesson-homework-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
}

.lesson-homework-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 8px;
}

.lesson-homework-header strong {
    display: block;
    color: #fff;
    font-size: 0.82rem;
    line-height: 1.35;
}

.lesson-homework-header small {
    display: block;
    color: var(--text-muted);
    margin-top: 3px;
    font-size: 0.7rem;
}

.lesson-homework-desc {
    color: var(--text-secondary);
    font-size: 0.8rem;
    line-height: 1.45;
    margin-top: 6px;
}

.lesson-homework-note {
    background: rgba(99, 102, 241, 0.1);
    padding: 8px 10px;
    border-radius: 8px;
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-top: 8px;
    line-height: 1.45;
}

.lesson-filter-bar {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    flex-wrap: wrap;
    padding: 14px;
    background: rgba(18, 25, 44, 0.72);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.lesson-filter-group {
    min-width: 190px;
}

.lesson-filter-group label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 600;
}

.lesson-filter-group .form-control {
    padding: 8px 12px;
}

.lesson-filter-count {
    margin-left: auto;
    padding: 8px 12px;
    color: #a5b4fc;
    font-size: 0.8rem;
    font-weight: 700;
}

.lesson-type-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.lesson-type-option {
    cursor: pointer;
}

.lesson-type-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.lesson-type-option span {
    display: grid;
    place-items: center;
    min-height: 46px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    font-weight: 700;
    transition: var(--transition);
}

.lesson-type-option input:checked + span {
    color: #fff;
    border-color: #6366f1;
    background: rgba(99, 102, 241, 0.25);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.quiz-assignment-title {
    margin-bottom: 18px;
    padding: 12px 14px;
    border: 1px solid rgba(99, 102, 241, 0.32);
    border-radius: var(--radius-md);
    background: rgba(99, 102, 241, 0.1);
    color: #c7d2fe;
    font-weight: 700;
}

.quiz-date-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.quiz-assignment-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 12px 0;
}

.quiz-assignment-chip {
    padding: 6px 9px;
    border: 1px solid rgba(52, 211, 153, 0.25);
    border-radius: 999px;
    background: rgba(16, 185, 129, 0.1);
    color: #a7f3d0;
    font-size: 0.72rem;
    font-weight: 600;
}

.quiz-access-dates {
    margin: 10px 0;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.quiz-option-count {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.quiz-form-help {
    margin: 4px 0 12px;
    color: var(--text-muted);
    font-size: 0.78rem;
}

.quiz-answer-key,
.student-optical-sheet {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.optical-row {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    padding: 9px 10px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.025);
}

.optical-row > strong {
    display: grid;
    place-items: center;
    flex: 0 0 28px;
    height: 28px;
    border-radius: 8px;
    background: rgba(99, 102, 241, 0.14);
    color: #c7d2fe;
    font-size: 0.78rem;
}

.optical-options {
    display: flex;
    align-items: center;
    gap: 5px;
    min-width: 0;
}

.optical-choice {
    cursor: pointer;
}

.optical-choice input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.optical-choice span {
    display: grid;
    place-items: center;
    min-width: 30px;
    height: 30px;
    padding: 0 7px;
    border: 1px solid rgba(156, 163, 175, 0.3);
    border-radius: 999px;
    color: var(--text-secondary);
    font-size: 0.76rem;
    font-weight: 700;
    transition: var(--transition);
}

.optical-choice:hover span {
    border-color: #818cf8;
    color: #e0e7ff;
}

.optical-choice input:checked + span {
    border-color: #6366f1;
    background: #4f46e5;
    color: #fff;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.16);
}

.optical-blank span {
    min-width: 42px;
    border-radius: 8px;
    font-size: 0.67rem;
}

.quiz-solve-modal,
.quiz-results-modal {
    max-width: 780px;
}

.quiz-pdf-button {
    display: inline-flex;
    margin-bottom: 16px;
    padding: 9px 12px;
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 9px;
    background: rgba(59, 130, 246, 0.1);
    color: #93c5fd;
    font-size: 0.82rem;
    font-weight: 600;
    text-decoration: none;
}

.quiz-pdf-button[hidden] {
    display: none;
}

.quiz-result-summary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px;
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: 10px;
    background: rgba(16, 185, 129, 0.08);
}

.quiz-stat {
    padding: 5px 8px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
}

.quiz-stat.correct {
    background: rgba(16, 185, 129, 0.14);
    color: #6ee7b7;
}

.quiz-stat.wrong {
    background: rgba(239, 68, 68, 0.14);
    color: #fca5a5;
}

.quiz-stat.blank {
    background: rgba(156, 163, 175, 0.14);
    color: #d1d5db;
}

.quiz-results-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.quiz-result-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
}

.quiz-result-row > div:first-child {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.quiz-result-row > div:first-child span,
.quiz-results-empty {
    color: var(--text-muted);
    font-size: 0.78rem;
}

.quiz-result-counts {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
    flex-wrap: wrap;
}

@media (max-width: 1180px) {
    .lesson-content-layout {
        grid-template-columns: minmax(380px, 1.7fr) minmax(230px, 0.8fr);
    }
}

@media (max-width: 800px) {
    .lesson-content-layout,
    .lesson-content-side {
        grid-template-columns: 1fr;
    }

    .lesson-content-side {
        grid-column: auto;
    }

    .lesson-detail-top {
        align-items: flex-start;
        flex-direction: column;
    }

    .lesson-open-label {
        width: 100%;
        margin-left: 0;
    }

    .lesson-filter-group {
        width: 100%;
    }

    .lesson-filter-count {
        width: 100%;
        margin-left: 0;
    }

    .quiz-date-fields {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .quiz-answer-key,
    .student-optical-sheet {
        grid-template-columns: 1fr;
    }

    .quiz-result-row {
        align-items: flex-start;
        flex-direction: column;
    }

    .quiz-result-counts {
        justify-content: flex-start;
    }
}

@media (max-width: 480px) {
    .quiz-option-count {
        grid-template-columns: 1fr;
    }

    .optical-row {
        align-items: flex-start;
    }

    .optical-options {
        flex-wrap: wrap;
    }
}

/* Modal Form Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    overflow-y: auto;
    overscroll-behavior: contain;
    z-index: 1000;
}

.modal-overlay.active {
    display: flex;
}

.modal-box {
    background: #131a2e;
    border: 1px solid var(--border-highlight);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 540px;
    max-height: calc(100vh - 48px);
    max-height: calc(100dvh - 48px);
    padding: 32px;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-gutter: stable;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.modal-box::-webkit-scrollbar {
    width: 8px;
}

.modal-box::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: rgba(156, 163, 175, 0.35);
}

.modal-box::-webkit-scrollbar-track {
    background: transparent;
}

@media (max-height: 720px), (max-width: 600px) {
    .modal-overlay {
        align-items: flex-start;
        padding: 12px;
    }

    .modal-box {
        width: 100%;
        max-height: calc(100vh - 24px);
        max-height: calc(100dvh - 24px);
        padding: 22px;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.modal-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffffff;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: #ffffff;
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Custom Confirm Modal & Toast Container */
.confirm-box {
    background: #131a2e;
    border: 1px solid var(--border-highlight);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 440px;
    padding: 28px;
    text-align: center;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
    animation: modalPop 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalPop {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.confirm-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
}

.confirm-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 8px;
}

.confirm-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.5;
}

.confirm-actions {
    display: flex;
    gap: 12px;
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(239, 68, 68, 0.4);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* Floating Toast Notifications */
#toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 2000;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: rgba(22, 28, 45, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    animation: toastSlide 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    min-width: 280px;
}

.toast.toast-success { border-left: 4px solid var(--accent-green); }
.toast.toast-error { border-left: 4px solid var(--accent-red); }
.toast.toast-info { border-left: 4px solid var(--primary); }

@keyframes toastSlide {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}