:root {
    --app-bg: #eef2f9;
    --app-bg-accent: #dce8ff;
    --card-bg: #f8fbff;
    --text-main: #16263a;
    --text-strong: #0e1c2d;
    --text-muted: #4c6281;
    --soft-blue: #c8ddff;
    --header-bg: #d9e8ff;
    --pill-bg: #f3f8ff;
    --chip-bg: #f3f8ff;
    --accent: #2b6cc4;
    --border-strong: #2c4364;
    --btn-surface: #e8f1ff;
    --btn-text: #11243c;
    --btn-active-bg: #1f4f91;
    --btn-active-text: #f2f7ff;
}

[data-bs-theme="dark"] {
    --app-bg: #0f1725;
    --app-bg-accent: #182840;
    --card-bg: #1b2a3f;
    --text-main: #e8f1ff;
    --text-strong: #f5f9ff;
    --text-muted: #b4c8e4;
    --soft-blue: #355f90;
    --header-bg: #1b2a42;
    --pill-bg: #223655;
    --chip-bg: #223655;
    --accent: #7fb2ff;
    --border-strong: #9dbfe8;
    --btn-surface: #2c4364;
    --btn-text: #eff6ff;
    --btn-active-bg: #8cb9ff;
    --btn-active-text: #10233f;
}

body.app-bg {
    background: linear-gradient(110deg, var(--app-bg), var(--app-bg-accent));
    color: var(--text-main);
}

.app-header {
    background-color: var(--header-bg);
}

h1,
h2,
h3,
h4,
h5,
h6,
strong,
.fw-bold,
.navbar-brand {
    color: var(--text-strong);
}

p,
li,
small,
label,
span,
div {
    color: inherit;
}

.text-muted {
    color: var(--text-muted) !important;
}

.nav-pill {
    min-width: 10rem;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 1.6rem;
    background-color: var(--pill-bg);
    border-color: var(--border-strong);
    color: var(--text-strong);
}

.nav-pill.active,
.nav-pill.active:hover,
.nav-pill.active:focus {
    background-color: var(--btn-active-bg);
    border-color: var(--btn-active-bg);
    color: var(--btn-active-text);
}

.profile-chip {
    width: 4rem;
    height: 4rem;
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-strong);
    text-decoration: none;
    font-size: 2rem;
    background-color: var(--chip-bg);
}

.page-panel {
    background: var(--card-bg);
    border: 1px solid var(--border-strong);
    border-radius: 0.85rem;
}

.action-btn {
    border: 1px solid var(--border-strong);
    border-radius: 0.75rem;
    background-color: var(--btn-surface);
    color: var(--btn-text);
    font-weight: 700;
    font-size: 2rem;
    padding: 0.75rem 1.25rem;
    text-align: center;
    text-decoration: none;
    display: inline-block;
}

.tile-btn {
    border: 1px solid var(--border-strong);
    border-radius: 0.75rem;
    background-color: var(--btn-surface);
    color: var(--btn-text);
    font-weight: 700;
    font-size: 2rem;
    min-height: 5.25rem;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.tile-btn:hover,
.action-btn:hover {
    background-color: var(--btn-active-bg);
    color: var(--btn-active-text);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.answer-card {
    border: 1px solid var(--border-strong);
    min-height: 16rem;
    background: var(--card-bg);
    border-radius: 0.75rem;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
}

.answer-card:hover {
    box-shadow: 0 4px 12px rgba(43, 108, 196, 0.15);
    border-color: var(--accent);
    transform: translateY(-2px);
}

.answer-card-header {
    border-bottom: 1px solid var(--border-strong);
    border-radius: 0.75rem;
    min-height: 5rem;
    background: linear-gradient(135deg, var(--btn-surface) 0%, var(--app-bg-accent) 100%);
    font-weight: 600;
}

.avatar-dot {
    width: 2.1rem;
    height: 2.1rem;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--soft-blue) 100%);
    display: inline-block;
    flex-shrink: 0;
}

.answer-body {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    min-height: 10rem;
}

.match-area {
    border: 1px solid var(--border-strong);
    background: var(--card-bg);
    border-radius: 0.75rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.portrait-placeholder {
    width: 23rem;
    height: 27rem;
    border: 1px solid var(--border-strong);
    border-radius: 0.75rem;
    background: linear-gradient(135deg, var(--app-bg-accent) 0%, var(--card-bg) 100%);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05);
    margin: 0 auto;
    display: grid;
    place-items: center;
}

.person-icon-lg {
    width: 9rem;
    height: 9rem;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--soft-blue) 100%);
    opacity: 0.7;
    box-shadow: 0 4px 8px rgba(43, 108, 196, 0.2);
}

.profile-avatar {
    width: 9rem;
    height: 9rem;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent), var(--btn-active-bg));
    color: #fff;
    box-shadow: 0 0.35rem 1rem rgba(0, 0, 0, 0.12) inset;
}

.profile-avatar-initials {
    font-size: 2.3rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    line-height: 1;
    font-family: var(--bs-body-font-family);
    text-transform: uppercase;
}

.person-shoulders {
    width: 18rem;
    height: 8rem;
    border-radius: 8rem 8rem 0 0;
    background: linear-gradient(135deg, var(--accent) 0%, var(--soft-blue) 100%);
    opacity: 0.7;
    box-shadow: 0 4px 8px rgba(43, 108, 196, 0.2);
}

.skip-btn {
    min-width: 14rem;
    background: var(--soft-blue);
    border-color: #7d9dcc;
    font-size: 1.5rem;
    opacity: 0.85;
    transition: all 0.2s ease;
}

.skip-btn:hover {
    opacity: 1;
    transform: translateY(-2px);
}

.date-pill {
    border: 1px solid var(--border-strong);
    max-width: 34rem;
}

.landing-actions {
    max-width: 24rem;
}

.auth-shell {
    max-width: 72rem;
}

.auth-card {
    overflow: hidden;
}

.auth-intro {
    background: linear-gradient(160deg, var(--app-bg-accent), var(--card-bg));
    border: 1px solid var(--border-strong);
    border-radius: 0.85rem;
}

.auth-kicker {
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 700;
    font-size: 0.85rem;
}

.auth-form .form-label {
    font-weight: 700;
    color: var(--text-strong);
}

.auth-form input[type="text"],
.auth-form input[type="email"],
.auth-form input[type="password"],
.auth-form input[type="checkbox"] {
    accent-color: var(--accent);
}

.auth-form .position-relative input[type="password"],
.auth-form .position-relative input[type="text"] {
    padding-right: 2.8rem;
}

.auth-form input[type="text"],
.auth-form input[type="email"],
.auth-form input[type="password"] {
    width: 100%;
    border: 1px solid var(--border-strong);
    border-radius: 0.75rem;
    padding: 0.85rem 1rem;
    background: var(--card-bg);
    color: var(--text-strong);
}

.auth-form input[type="text"]:focus,
.auth-form input[type="email"]:focus,
.auth-form input[type="password"]:focus {
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(127, 178, 255, 0.25);
    border-color: var(--accent);
}

.auth-textarea {
    border: 1px solid var(--border-strong);
    border-radius: 0.75rem;
    padding: 0.85rem 1rem;
    background: var(--card-bg);
    color: var(--text-strong);
    font-family: inherit;
}

.auth-textarea:focus {
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(127, 178, 255, 0.25);
    border-color: var(--accent);
}

.auth-meta {
    font-size: 0.95rem;
}

.auth-submit {
    border-radius: 0.85rem;
    background: var(--btn-surface);
    border: 1px solid var(--border-strong);
    color: var(--btn-text);
    font-weight: 700;
    padding: 0.8rem 1rem;
    min-height: 3.2rem;
}

.auth-submit:hover,
.auth-submit:focus {
    background: var(--btn-active-bg);
    border-color: var(--btn-active-bg);
    color: var(--btn-active-text);
}

.auth-confirm-btn {
    background: transparent;
    border: 1px solid var(--border-strong);
    color: var(--text-strong);
}

.auth-confirm-btn:hover,
.auth-confirm-btn:focus {
    background: var(--btn-active-bg);
    border-color: var(--btn-active-bg);
    color: var(--btn-active-text);
}

.auth-errors {
    border: 1px solid var(--border-strong);
    background: color-mix(in srgb, var(--soft-blue) 30%, transparent);
    color: var(--text-strong);
}

.auth-panel-pad {
    padding-left: clamp(1.5rem, 3vw, 3rem);
    padding-right: clamp(1.5rem, 3vw, 3rem);
}

.auth-page-shell {
    padding-left: clamp(1.5rem, 4vw, 4rem);
    padding-right: clamp(1.5rem, 4vw, 4rem);
}

.answer-body {
    min-height: 10.5rem;
}

.btn-outline-dark {
    --bs-btn-color: var(--text-strong);
    --bs-btn-border-color: var(--border-strong);
    --bs-btn-hover-color: var(--btn-active-text);
    --bs-btn-hover-bg: var(--btn-active-bg);
    --bs-btn-hover-border-color: var(--btn-active-bg);
    --bs-btn-focus-shadow-rgb: 127, 178, 255;
    --bs-btn-active-color: var(--btn-active-text);
    --bs-btn-active-bg: var(--btn-active-bg);
    --bs-btn-active-border-color: var(--btn-active-bg);
}

/* Outline danger button: red text, on hover becomes red background with white text */
.btn-outline-danger {
    --bs-btn-color: #c43b3b;
    --bs-btn-border-color: #c43b3b;
    color: #c43b3b;
    border-color: #c43b3b;
}
.btn-outline-danger:hover,
.btn-outline-danger:focus {
    color: #fff !important;
    background-color: #c43b3b !important;
    border-color: #c43b3b !important;
}

a {
    color: var(--accent);
}

.roster-card {
    height: 110px;
    overflow: hidden;
}

.roster-name-wrap {
    overflow: hidden;
    min-width: 0;
    flex: 1;
}

.roster-name {
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.9rem;
    line-height: 1.3;
}

.roster-nickname {
    font-weight: 400;
    font-style: italic;
    color: var(--accent);
}

.roster-email {
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.8rem;
}

.roster-edit-btn {
    opacity: 0.4;
    transition: opacity 0.15s;
    padding: 0.2rem 0.4rem;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.roster-card:hover .roster-edit-btn {
    opacity: 1;
}

.course-card:hover {
    background: var(--btn-surface) !important;
    transition: background 0.15s ease;
}

@media (max-width: 768px) {
    .nav-pill {
        min-width: 100%;
        font-size: 1.2rem;
    }

    .auth-intro {
        margin-bottom: 0.5rem;
    }

    .action-btn,
    .tile-btn {
        font-size: 1.5rem;
    }

    .auth-panel-pad {
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }

    .auth-page-shell {
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }
}

/* Profile action buttons: ensure consistent height and alignment */
.profile-actions {
    flex-wrap: nowrap;
}

.profile-actions .btn {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    padding-left: 1rem !important;
    padding-right: 1rem !important;
    /* slightly shorter uniform height */
    min-height: 3.2rem;
    height: 3.2rem;
    white-space: nowrap;
}

.profile-actions .btn.btn-outline-dark,
.profile-actions .btn.btn-outline-danger,
.profile-actions .btn.btn-danger {
    line-height: 1;
}

@media (max-width: 768px) {
    .profile-actions {
        flex-wrap: wrap;
    }
    .profile-actions .btn {
        height: auto;
        min-height: 2.8rem;
        white-space: normal;
    }
}

/* Password Toggle Button */
.btn-password-toggle {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
}

.btn-password-toggle:hover,
.btn-password-toggle:focus {
    color: var(--accent);
    outline: none;
}

.btn-password-toggle svg {
    width: 1.2rem;
    height: 1.2rem;
    stroke-width: 2;
}

.icon-eye-off {
    display: none !important;
}

.btn-password-toggle.show-password .icon-eye {
    display: none !important;
}

.btn-password-toggle.show-password .icon-eye-off {
    display: block !important;
}