/* --- HEADER & LOGO --- */
.page-top {
    background: linear-gradient(to bottom, #1a1a1a, #141414);
    padding: 20px 0 60px 0;
    position: relative;
    width: 100vw;
    left: 50%;
    transform: translateX(-50%);
    box-sizing: border-box;
}

.page-top.has-banner, .page-top.no-banner {
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    border-bottom: none;
    background-color: var(--background-color-dark);
}

.page-top.has-banner::before, .page-top.no-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1;
    transition: background-color 0.5s var(--smooth);
}

body.light-mode .page-top.has-banner::before, body.light-mode .page-top.no-banner::before {
    background-color: rgba(255, 255, 255, 0.5);
}

.page-top.has-banner::after, .page-top.no-banner::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to top, var(--background-color-dark), transparent);
    z-index: 2;
}

.header, .main-title {
    position: relative;
    z-index: 3;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

body.light-mode .page-top:not(.has-banner) {
    background: linear-gradient(to bottom, #ffffff, #f5f5f1);
}


body.light-mode .page-top.has-banner::after, body.light-mode .page-top.no-banner::after {
    background: linear-gradient(to top, var(--background-color-light), transparent);
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 50px;
}

.logo {
    font-size: 2.8em;
    font-weight: 900;
    letter-spacing: 2px;
    cursor: pointer;
    transition: transform 0.4s var(--bounce), text-shadow 0.3s;
    display: inline-block;
}

.logo:hover {
    transform: scale(1.1) rotate(-2deg);
    text-shadow: 0 0 20px var(--primary-color);
}

.logo .esl { color: var(--primary-color); }

.header-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    z-index: 200;
}

.user-session-indicator {
    position: relative;
    z-index: 250;
    display: none;
}

.user-session-button {
    cursor: pointer;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    color: var(--text-color-dark);
    background: transparent;
    box-shadow: none;
    overflow: hidden;
    transition: transform 0.25s var(--smooth), background-color 0.25s var(--smooth), box-shadow 0.25s var(--smooth);
}

.user-session-button:hover,
.user-session-button[aria-expanded="true"] {
    transform: scale(1.12);
    background-color: rgba(255,255,255,0.1);
}

body.light-mode .user-session-button {
    color: var(--text-color-light);
    background: transparent;
    box-shadow: none;
}

body.light-mode .user-session-button:hover,
body.light-mode .user-session-button[aria-expanded="true"] {
    background-color: rgba(0,0,0,0.1);
}

.user-session-button svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.user-session-tooltip {
    position: fixed;
    top: 0;
    left: 0;
    min-width: 180px;
    padding: 10px 12px;
    border-radius: 12px;
    color: var(--text-color-dark);
    background: rgba(18, 18, 18, 0.96);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.32);
    backdrop-filter: blur(10px);
    z-index: 2147483647;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.96);
    transform-origin: top right;
    pointer-events: none;
    transition: opacity 0.22s var(--smooth), transform 0.22s var(--smooth), visibility 0.22s var(--smooth);
}

.user-session-tooltip.is-login-tooltip {
    width: min(320px, calc(100vw - 32px));
    min-width: 280px;
}

.user-session-tooltip::before {
    content: '';
    position: absolute;
    top: -6px;
    right: 18px;
    width: 12px;
    height: 12px;
    background: rgba(18, 18, 18, 0.96);
    transform: rotate(45deg);
    border-radius: 2px;
}

.user-session-tooltip.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

body.light-mode .user-session-tooltip {
    color: var(--text-color-light);
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 18px 40px rgba(20, 20, 20, 0.14);
}

body.light-mode .user-session-tooltip::before {
    background: rgba(255, 255, 255, 0.96);
}

.user-session-tooltip-status {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #38d46a;
    margin-bottom: 4px;
}

.user-session-tooltip-name {
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.2;
    word-break: break-word;
}

.user-session-tooltip-name.is-condensed {
    font-size: 0.88rem;
}

.user-session-tooltip-name.is-compact {
    font-size: 0.8rem;
}

.user-session-tooltip-meta {
    margin-top: 2px;
    font-size: 0.78rem;
    opacity: 0.78;
    line-height: 1.4;
}

.user-session-auth-message {
    margin-top: 12px;
    padding: 10px 12px;
    border-radius: 10px;
    font-size: 0.78rem;
    line-height: 1.45;
}

.user-session-auth-message[hidden] {
    display: none;
}

.user-session-auth-message a {
    color: inherit;
    font-weight: 700;
}

.user-session-auth-message.is-error {
    color: #ffd4d4;
    background: rgba(185, 28, 28, 0.24);
    border: 1px solid rgba(248, 113, 113, 0.35);
}

.user-session-auth-message.is-success {
    color: #d6ffe2;
    background: rgba(22, 163, 74, 0.2);
    border: 1px solid rgba(74, 222, 128, 0.3);
}

.user-session-auth-message.is-info {
    color: #e4eefc;
    background: rgba(37, 99, 235, 0.2);
    border: 1px solid rgba(96, 165, 250, 0.28);
}

body.light-mode .user-session-auth-message.is-error {
    color: #7f1d1d;
    background: rgba(254, 226, 226, 0.92);
    border: 1px solid rgba(248, 113, 113, 0.44);
}

body.light-mode .user-session-auth-message.is-success {
    color: #166534;
    background: rgba(220, 252, 231, 0.95);
    border: 1px solid rgba(74, 222, 128, 0.38);
}

body.light-mode .user-session-auth-message.is-info {
    color: #1d4ed8;
    background: rgba(219, 234, 254, 0.95);
    border: 1px solid rgba(96, 165, 250, 0.36);
}

.user-session-login-form,
.user-session-logout-form {
    margin: 0;
}

.user-session-login-form {
    display: grid;
    gap: 10px;
    margin-top: 14px;
}

.user-session-field {
    display: grid;
    gap: 6px;
}

.user-session-field span {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    opacity: 0.82;
}

.user-session-field input {
    width: 100%;
    min-width: 0;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 10px;
    padding: 10px 12px;
    color: inherit;
    background: rgba(255, 255, 255, 0.06);
    box-sizing: border-box;
}

.user-session-field input:focus {
    outline: none;
    border-color: rgba(248, 113, 113, 0.8);
    box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.14);
}

.user-session-checkbox {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    opacity: 0.86;
}

.user-session-checkbox input {
    margin: 0;
    accent-color: var(--primary-color);
}

.user-session-submit {
    width: 100%;
    border: none;
    border-radius: 10px;
    padding: 10px 12px;
    color: #ffffff;
    font-size: 0.88rem;
    font-weight: 700;
    cursor: pointer;
    background: linear-gradient(135deg, #ef4444, #b91c1c);
    transition: transform 0.2s var(--smooth), box-shadow 0.2s var(--smooth), filter 0.2s var(--smooth);
}

.user-session-submit:hover,
.user-session-submit:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 12px 24px rgba(185, 28, 28, 0.28);
    filter: brightness(1.04);
}

.user-session-submit.is-loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.user-session-submit.is-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin-top: -8px;
    margin-left: -8px;
    border-radius: 999px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #ffffff;
    animation: user-session-spin 0.7s linear infinite;
}

.user-session-inline-links {
    margin-top: 10px;
    display: grid;
    gap: 8px;
}

.user-session-inline-links a {
    font-size: 0.78rem;
    color: inherit;
    opacity: 0.86;
    text-decoration: none;
}

.user-session-inline-links a:hover,
.user-session-inline-links a:focus-visible {
    opacity: 1;
    text-decoration: underline;
}

.user-session-text-button {
    padding: 0;
    border: none;
    background: transparent;
    color: inherit;
    font: inherit;
    font-size: 0.78rem;
    text-align: left;
    opacity: 0.9;
    cursor: pointer;
}

.user-session-text-button:hover,
.user-session-text-button:focus-visible {
    opacity: 1;
    text-decoration: underline;
}

.user-session-verification-form {
    display: grid;
    gap: 10px;
    margin-top: 14px;
}

.user-session-verification-meta {
    font-size: 0.78rem;
    line-height: 1.45;
    opacity: 0.82;
}

.user-session-secondary-button {
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 10px;
    padding: 10px 12px;
    color: inherit;
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.06);
    transition: transform 0.2s var(--smooth), border-color 0.2s var(--smooth), background-color 0.2s var(--smooth);
}

.user-session-secondary-button:hover,
.user-session-secondary-button:focus-visible {
    transform: translateY(-1px);
    border-color: rgba(248, 113, 113, 0.48);
    background: rgba(255, 255, 255, 0.1);
}

.user-session-secondary-button.is-loading,
.user-session-secondary-button:disabled {
    cursor: default;
}

.user-session-secondary-button.is-loading {
    position: relative;
    color: transparent;
}

.user-session-secondary-button.is-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin-top: -8px;
    margin-left: -8px;
    border-radius: 999px;
    border: 2px solid rgba(255, 255, 255, 0.25);
    border-top-color: #ffffff;
    animation: user-session-spin 0.7s linear infinite;
}

.user-session-resend-note {
    min-height: 1.2em;
    font-size: 0.74rem;
    line-height: 1.4;
    opacity: 0.72;
}

.user-session-password-checklist {
    display: grid;
    gap: 6px;
    margin-top: -2px;
    padding: 10px 12px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
}

.user-session-password-checklist div {
    position: relative;
    padding-left: 18px;
    font-size: 0.74rem;
    line-height: 1.35;
    opacity: 0.72;
}

.user-session-password-checklist div::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 10px;
    height: 10px;
    margin-top: -5px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
}

.user-session-password-checklist div.is-valid {
    opacity: 1;
    color: #d6ffe2;
}

.user-session-password-checklist div.is-valid::before {
    background: #38d46a;
    box-shadow: 0 0 0 3px rgba(56, 212, 106, 0.18);
}

.user-session-auth-modal {
    position: fixed;
    inset: 0;
    z-index: 2147483647;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    transition: opacity 0.28s var(--smooth), visibility 0.28s var(--smooth);
}

.user-session-auth-modal.is-visible {
    opacity: 1;
    visibility: visible;
}

.user-session-auth-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 8, 8, 0.7);
    backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 0.28s ease;
}

.user-session-auth-modal__dialog {
    position: relative;
    z-index: 1;
    width: min(460px, calc(100vw - 32px));
    max-height: calc(100vh - 32px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: 24px;
    color: var(--text-color-dark);
    background:
        radial-gradient(circle at top right, rgba(229, 9, 20, 0.24), transparent 34%),
        linear-gradient(180deg, rgba(24, 24, 24, 0.98), rgba(14, 14, 14, 0.98));
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
    box-sizing: border-box;
    opacity: 0;
    transform: translateY(26px) scale(0.96);
    transition: opacity 0.28s var(--smooth), transform 0.32s var(--bounce);
    will-change: opacity, transform;
}

.user-session-auth-modal.is-visible .user-session-auth-modal__backdrop {
    opacity: 1;
}

.user-session-auth-modal.is-visible .user-session-auth-modal__dialog {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.user-session-auth-modal__header {
    position: sticky;
    top: 0;
    z-index: 3;
    display: flex;
    justify-content: flex-end;
    padding: 14px 14px 0 14px;
    background:
        linear-gradient(180deg, rgba(14, 14, 14, 0.98), rgba(14, 14, 14, 0.92) 70%, rgba(14, 14, 14, 0));
}

.user-session-auth-modal__scroll {
    flex: 1 1 auto;
    overflow-y: auto;
    min-height: 0;
    padding: 0 24px 24px 24px;
}

.user-session-auth-modal__close {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 999px;
    color: inherit;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.08);
}

.user-session-auth-modal__close:hover,
.user-session-auth-modal__close:focus-visible {
    background: rgba(255, 255, 255, 0.14);
}

.user-session-auth-modal__panel {
    display: none;
}

.user-session-auth-modal__panel.is-active {
    display: block;
}

.user-session-auth-modal__footer {
    position: sticky;
    bottom: -24px;
    z-index: 2;
    display: grid;
    gap: 10px;
    margin-top: 18px;
    padding-top: 16px;
    padding-bottom: 4px;
    background:
        linear-gradient(180deg, rgba(14, 14, 14, 0), rgba(14, 14, 14, 0.92) 18%, rgba(14, 14, 14, 0.98));
}

.user-session-auth-modal__eyebrow {
    margin-bottom: 8px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #ff8a8a;
}

.user-session-auth-modal__title {
    margin: 0;
    font-size: 1.7rem;
    line-height: 1.1;
}

.user-session-auth-modal__copy {
    margin: 10px 0 0 0;
    font-size: 0.92rem;
    line-height: 1.5;
    opacity: 0.82;
}

.user-session-signup-form {
    display: grid;
    gap: 10px;
    margin-top: 18px;
}

.user-session-reset-form {
    display: grid;
    gap: 10px;
    margin-top: 18px;
}

.user-session-social {
    margin-top: 12px;
}

.user-session-social-divider {
    position: relative;
    margin-bottom: 12px;
    text-align: center;
}

.user-session-social-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.12);
}

.user-session-social-divider span {
    position: relative;
    display: inline-block;
    padding: 0 10px;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    opacity: 0.7;
    background: rgba(18, 18, 18, 0.96);
}

.user-session-google-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
    color: #f8fafc;
    font-size: 0.84rem;
    font-weight: 700;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    box-sizing: border-box;
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.18);
    transition: transform 0.2s var(--smooth), background-color 0.2s var(--smooth), border-color 0.2s var(--smooth), box-shadow 0.2s var(--smooth);
}

.user-session-google-button:hover,
.user-session-google-button:focus-visible {
    transform: translateY(-1px);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.08));
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.22);
}

.user-session-google-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    background: #ffffff;
    box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.08);
}

.user-session-google-icon svg {
    width: 18px;
    height: 18px;
    display: block;
}

.user-session-tooltip-actions {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.user-session-tooltip-logout {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 8px 12px;
    border-radius: 10px;
    color: #ffffff;
    font-size: 0.82rem;
    font-weight: 700;
    text-decoration: none;
    background: linear-gradient(135deg, #d43c3c, #b91c1c);
    box-sizing: border-box;
    transition: transform 0.2s var(--smooth), box-shadow 0.2s var(--smooth), filter 0.2s var(--smooth);
}

.user-session-tooltip-logout:hover,
.user-session-tooltip-logout:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(185, 28, 28, 0.28);
    filter: brightness(1.04);
}

.user-session-tooltip-logout.is-loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.user-session-tooltip-logout.is-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin-top: -8px;
    margin-left: -8px;
    border-radius: 999px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #ffffff;
    animation: user-session-spin 0.7s linear infinite;
}

body.light-mode .user-session-tooltip-actions {
    border-top-color: rgba(15, 23, 42, 0.12);
}

body.light-mode .user-session-field input {
    border-color: rgba(15, 23, 42, 0.12);
    background: rgba(15, 23, 42, 0.04);
}

body.light-mode .user-session-field input:focus {
    border-color: rgba(220, 38, 38, 0.75);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

body.light-mode .user-session-social-divider::before {
    background: rgba(15, 23, 42, 0.12);
}

body.light-mode .user-session-social-divider span {
    background: rgba(255, 255, 255, 0.96);
}

body.light-mode .user-session-google-button {
    color: #0f172a;
    border-color: rgba(15, 23, 42, 0.12);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(248, 250, 252, 0.95));
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

body.light-mode .user-session-google-button:hover,
body.light-mode .user-session-google-button:focus-visible {
    background: linear-gradient(180deg, rgba(255, 255, 255, 1), rgba(241, 245, 249, 1));
    border-color: rgba(15, 23, 42, 0.18);
    box-shadow: 0 14px 28px rgba(15, 23, 42, 0.12);
}

body.light-mode .user-session-secondary-button {
    border-color: rgba(15, 23, 42, 0.12);
    background: rgba(15, 23, 42, 0.04);
}

body.light-mode .user-session-secondary-button:hover,
body.light-mode .user-session-secondary-button:focus-visible {
    border-color: rgba(220, 38, 38, 0.34);
    background: rgba(15, 23, 42, 0.07);
}

body.light-mode .user-session-password-checklist {
    background: rgba(15, 23, 42, 0.04);
}

body.light-mode .user-session-password-checklist div::before {
    background: rgba(15, 23, 42, 0.14);
}

body.light-mode .user-session-password-checklist div.is-valid {
    color: #166534;
}

body.light-mode .user-session-auth-modal__dialog {
    color: var(--text-color-light);
    background:
        radial-gradient(circle at top right, rgba(229, 9, 20, 0.12), transparent 32%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(245, 245, 241, 0.98));
    box-shadow: 0 28px 72px rgba(15, 23, 42, 0.16);
}

body.light-mode .user-session-auth-modal__header {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.92) 70%, rgba(255, 255, 255, 0));
}

body.light-mode .user-session-auth-modal__close {
    background: rgba(15, 23, 42, 0.06);
}

body.light-mode .user-session-auth-modal__close:hover,
body.light-mode .user-session-auth-modal__close:focus-visible {
    background: rgba(15, 23, 42, 0.1);
}

body.light-mode .user-session-auth-modal__footer {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.92) 18%, rgba(255, 255, 255, 0.98));
}

@keyframes user-session-spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.theme-switcher {
    cursor: pointer;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.5s var(--bounce), background-color 0.3s;
    position: relative;
    overflow: hidden;
}

.theme-switcher:hover {
    transform: rotate(180deg) scale(1.2);
    background-color: rgba(255,255,255,0.1);
}
body.light-mode .theme-switcher:hover { background-color: rgba(0,0,0,0.1); }

.print-button {
    cursor: pointer;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    padding: 0;
    margin: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: transparent;
    box-shadow: none;
    transition: transform 0.25s var(--smooth), background-color 0.25s var(--smooth), box-shadow 0.25s var(--smooth);
}

.print-button:hover {
    transform: scale(1.12);
    background-color: rgba(255,255,255,0.1);
}

body.light-mode .print-button {
    background: transparent;
    box-shadow: none;
}

body.light-mode .print-button:hover {
    background-color: rgba(0,0,0,0.1);
}

.print-button img {
    width: 22px;
    height: 22px;
    display: block;
    transition: transform 0.25s var(--smooth), filter 0.25s var(--smooth);
}

.print-button:hover img {
    transform: scale(1.08);
    filter: drop-shadow(0 0 10px rgba(229, 9, 20, 0.28));
}

.theme-switcher svg {
    width: 24px;
    height: 24px;
    transition: opacity 0.35s ease, transform 0.45s var(--bounce), fill 0.3s;
    position: absolute;
    inset: 8px;
}

#moon-icon {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

#sun-icon {
    opacity: 0;
    transform: scale(0.6) rotate(-90deg);
}

body.light-mode #moon-icon {
    opacity: 0;
    transform: scale(0.6) rotate(90deg);
}

body.light-mode #sun-icon {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}
#moon-icon path { fill: var(--text-color-dark); }
#sun-icon path { fill: var(--text-color-light); }

.title-container {
    position: relative;
    z-index: 3;
}

body.edit-mode-enabled .title-container {
    padding-right: 40px; /* Add padding to prevent overlap */
    padding-bottom: 30px; /* Add padding for the button */
}

.main-title {
    text-align: center;
    padding: 20px 20px 30px 20px;
    font-size: 2.5em;
    font-weight: 900;
    letter-spacing: 1px;
    animation: fadeIn 1s ease-out;
    border-radius: 10px;
}

.main-title.editing {
    background-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 15px rgba(241, 196, 15, 0.3);
    outline: none;
}

#edit-title-btn {
    position: absolute;
    bottom: 20px;
    right: 0;
    color: var(--text-color-dark);
    opacity: 0.7;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease-in-out;
}

#edit-title-btn:hover {
    opacity: 1;
    background-color: rgba(255, 255, 255, 0.1);
}

body.light-mode #edit-title-btn {
    color: var(--text-color-light);
}

body.light-mode #edit-title-btn:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
    .user-session-tooltip {
        right: -8px;
        min-width: 160px;
    }
}

/* --- TABS --- */
.tabs-container {
    margin: -50px 50px 0 50px;
    position: relative;
    scroll-behavior: smooth;
    z-index: 3;
}

.tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding-bottom: 10px;
    border-bottom: 2px solid #333;
}
body.light-mode .tabs { border-bottom-color: #ddd; }

#reading .title-container {
    margin-bottom: 20px;
    padding-bottom: 10px;
}

body.light-mode #reading .title-container {
    border-bottom-color: #ddd;
}

#reading .article-part {
    margin-bottom: 20px;
}

.tab-button {
    background: transparent;
    color: #888;
    border: none;
    padding: 12px 20px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: bold;
    border-bottom: 4px solid transparent;
    transition: all 0.3s var(--smooth);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
    letter-spacing: 0.5px;
}

.tab-button:hover {
    color: var(--text-color-dark);
    background-color: rgba(255,255,255,0.05);
    transform: translateY(-2px);
}
body.light-mode .tab-button:hover { 
    color: var(--text-color-light);
    background-color: rgba(0,0,0,0.05);
}

.tab-button.active {
    color: var(--text-color-dark);
    border-bottom-color: var(--primary-color);
}

body.light-mode .tab-button.active {
    color: var(--text-color-light);
}

/* --- CONTENT CONTAINER --- */
.content-container {
    background-color: var(--container-bg-dark);
    margin: 30px 50px;
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow-dark);
    min-height: 400px; 
    transition: background-color 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden; 
}

body.light-mode .content-container {
    background-color: var(--container-bg-light);
    box-shadow: var(--shadow-light);
}
/* --- PAGE NAVIGATION --- */
.page-navigation {
    display: flex;
    justify-content: space-between;
    padding: 20px 50px;
    margin: 0 auto;
    max-width: 1100px;
}

.page-navigation button {
    background: none;
    border: none;
    color: var(--text-color-dark);
    font-size: 1em;
    font-weight: bold;
    cursor: pointer;
    padding: 0;
    transition: color 0.2s;
}

body.light-mode .page-navigation button {
    color: var(--text-color-light);
}

.page-navigation button:hover {
    color: var(--primary-color);
}

body.light-mode .page-navigation button:hover:not(:disabled) {
    color: var(--primary-color);
}

/* --- FOOTER --- */
.footer {
    text-align: center;
    padding: 20px 50px;
    margin: 20px auto 0;
    max-width: 1100px;
    color: #888;
    font-size: 0.9em;
}

body.light-mode .footer {
    color: #555;
}

.footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.footer .version {
    margin-top: 5px;
    font-size: 0.8em;
    color: #777;
}

.footer img {
    height: 1em; /* This makes the image height match the text's font size */
    width: auto;
    vertical-align: middle; /* Aligns the image nicely with the text */
}

.footer a {
    color: #8a2be2; /* Purple color */
    text-decoration: none;
    font-weight: bold;
    transition: color 0.2s;
}

body.light-mode .footer a {
    color: #6a0dad; /* A slightly darker purple for light mode */
}

.footer a:hover {
    color: var(--primary-color);
}

.tab-header h2 {
    display: flex;
    align-items: center;
    justify-content: space-between;
}