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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #0f1419;
    color: #e6e8eb;
    min-height: 100vh;
    line-height: 1.5;
}

header {
    background: #1a2028;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #2a3340;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 { font-size: 1.4rem; }

#userInfo { display: flex; align-items: center; gap: 1rem; }
#userEmail { color: #a0a8b0; font-size: 0.9rem; }

.header-right { display: flex; align-items: center; gap: 1rem; }
.lang-switch { display: flex; gap: 4px; }
.lang-btn {
    background: #2a3340;
    color: #a0a8b0;
    padding: 0.35rem 0.55rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    line-height: 1;
}
.lang-btn .flag {
    font-size: 0.85rem;
    line-height: 1;
    filter: saturate(1.1);
}
.lang-btn .lang-code { letter-spacing: 0.5px; }
.lang-btn:hover { background: #353f4d; color: #e6e8eb; }
.lang-btn.active { background: #4dabf7; color: #fff; }

.avatar-mini {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: #2a3340;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}
.avatar-mini img { width: 100%; height: 100%; object-fit: cover; }
.avatar-mini span { font-size: 1.1rem; }

.avatar-sm {
    width: 28px; height: 28px;
    border-radius: 50%;
    background: #2a3340;
    display: inline-flex; align-items: center; justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
    vertical-align: middle;
}
.avatar-sm img { width: 100%; height: 100%; object-fit: cover; }
.avatar-sm span { font-size: 0.85rem; }

.avatar-edit {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 0.5rem;
}
.avatar-preview {
    width: 96px; height: 96px;
    border-radius: 50%;
    background: #0f1419;
    border: 1px solid #2a3340;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}
.avatar-preview img { width: 100%; height: 100%; object-fit: cover; }
.avatar-preview span { font-size: 2.5rem; color: #a0a8b0; }
.avatar-actions { display: flex; flex-direction: column; gap: 0.4rem; }
.avatar-actions .small-btn { align-self: flex-start; }

main {
    max-width: 800px;
    margin: 0 auto;
    padding: 1.5rem;
}

.hidden { display: none !important; }

/* Tabs (auth) */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid #2a3340;
}
.tab {
    background: none;
    border: none;
    color: #a0a8b0;
    padding: 0.75rem 1.25rem;
    cursor: pointer;
    font-size: 0.95rem;
    border-bottom: 2px solid transparent;
}
.tab.active { color: #4dabf7; border-bottom-color: #4dabf7; }

.auth-form {
    background: #1a2028;
    padding: 2rem;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-width: 400px;
    margin: 2rem auto;
}
.auth-form h2 { margin-bottom: 0.5rem; }

input, textarea, select {
    background: #0f1419;
    border: 1px solid #2a3340;
    color: #e6e8eb;
    padding: 0.7rem 0.9rem;
    border-radius: 6px;
    font-size: 0.95rem;
    font-family: inherit;
    width: 100%;
}
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: #4dabf7;
}
textarea { min-height: 70px; resize: vertical; }

button {
    background: #4dabf7;
    border: none;
    color: white;
    padding: 0.7rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: background 0.15s;
}
button:hover:not(:disabled) { background: #3b95e0; }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.secondary { background: #2a3340; }
button.secondary:hover:not(:disabled) { background: #353f4d; }
button.danger { background: #e03131; }
button.danger:hover:not(:disabled) { background: #c92a2a; }

.error { color: #ff6b6b; font-size: 0.9rem; min-height: 1.2em; }

/* App nav */
.app-nav {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid #2a3340;
}
.nav-btn {
    background: none;
    color: #a0a8b0;
    padding: 0.65rem 1rem;
    border-bottom: 2px solid transparent;
    border-radius: 0;
}
.nav-btn:hover { background: none; color: #e6e8eb; }
.nav-btn.active { color: #4dabf7; border-bottom-color: #4dabf7; }

.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.card {
    background: #1a2028;
    border-radius: 8px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.card-inset {
    background: #0f1419;
    border-radius: 6px;
    padding: 1rem;
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.row { display: flex; gap: 0.5rem; }
.row > * { flex: 1; }

.list { display: flex; flex-direction: column; gap: 0.6rem; }

.list-item {
    background: #1a2028;
    padding: 1rem 1.25rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.list-item:hover { background: #232b35; }
.list-item-main { display: flex; align-items: center; gap: 0.75rem; }
.list-item h4 { font-size: 1rem; }
.list-item .meta { color: #a0a8b0; font-size: 0.85rem; margin-top: 0.2rem; }
.muted { color: #a0a8b0; font-size: 0.9rem; }

.badge {
    background: #2a3340;
    color: #a0a8b0;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.8rem;
}
.badge.global { background: #1c3a5e; color: #74c0fc; }
.badge.admin { background: #5e1c3a; color: #fc74b1; }

/* Admin panel */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}
.stat-card {
    background: #1a2028;
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
}
.stat-card .stat-value {
    font-size: 1.8rem;
    font-weight: 600;
    color: #4dabf7;
    line-height: 1.2;
}
.stat-card .stat-label {
    font-size: 0.8rem;
    color: #a0a8b0;
    margin-top: 0.2rem;
}
.admin-tab {
    background: none;
    color: #a0a8b0;
    padding: 0.65rem 1rem;
    border-bottom: 2px solid transparent;
    border-radius: 0;
}
.admin-tab:hover { background: none; color: #e6e8eb; }
.admin-tab.active { color: #4dabf7; border-bottom-color: #4dabf7; }

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}
.modal-content {
    background: #1a2028;
    border-radius: 8px;
    padding: 2rem;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.modal-close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: none;
    color: #a0a8b0;
    font-size: 1.5rem;
    line-height: 1;
    padding: 0.25rem 0.6rem;
}
.modal-close:hover { background: rgba(255,255,255,0.05); color: #fff; }

#exerciseDetailModal .modal-content { max-width: 720px; }
.video-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
}
.video-wrap iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}
.badge.video { background: #1c3a2a; color: #74c08a; }
.exercise-link { cursor: pointer; }
.exercise-link:hover strong { text-decoration: underline; color: #74c08a; }
.exercise-group-header {
    font-size: 0.8rem;
    font-weight: 600;
    color: #4dabf7;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 0.75rem;
    margin-bottom: 0.25rem;
    padding-bottom: 0.25rem;
    border-bottom: 1px solid #2a3340;
}
.exercise-group-header:first-of-type { margin-top: 0.4rem; }
.exercise-subgroup-header {
    font-size: 0.78rem;
    font-weight: 500;
    color: #a0a8b0;
    margin-top: 0.4rem;
    margin-bottom: 0.15rem;
    padding-left: 0.4rem;
}

.payment-box {
    background: #1a2028;
    border: 1px solid #2a3340;
    border-radius: 6px;
    padding: 0.6rem 0.8rem;
    margin: 0.5rem 0 0.75rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}
.payment-box:empty { display: none; }
.payment-box button { margin: 0; }
.badge.approved { background: #1c3a2a; color: #74c08a; }
.badge.claimed { background: #3a341c; color: #d4b85a; }
.badge.pending { background: #3a1c1c; color: #d47a7a; }
.card-inset h4 { margin-bottom: 0.4rem; }

.chart-wrap { height: 320px; position: relative; }

.search-input {
    margin-bottom: 0.75rem;
}

.trainer-banner {
    background: #1a2028;
    border-left: 3px solid #4dabf7;
    border-radius: 6px;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
}
.trainer-banner.no-trainer { border-left-color: #fab005; background: #2a2317; }
.trainer-banner .info { display: flex; flex-direction: column; gap: 0.1rem; }
.trainer-banner .info .label { color: #a0a8b0; font-size: 0.8rem; }
.trainer-banner .info .name { font-weight: 500; }

.trainers-pick-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 320px;
    overflow-y: auto;
}
.trainer-pick-card {
    background: #0f1419;
    border: 1px solid #2a3340;
    border-radius: 6px;
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    transition: border-color 0.15s;
}
.trainer-pick-card.current { border-color: #4dabf7; background: #1c3a5e; }
.trainer-pick-card.none-option { border-style: dashed; }
.trainer-pick-card .info { display: flex; flex-direction: column; gap: 0.1rem; }
.trainer-pick-card .info .name { font-weight: 500; }
.trainer-pick-card .info .email { color: #a0a8b0; font-size: 0.85rem; }
.trainer-pick-card .current-tag { color: #74c0fc; font-size: 0.85rem; font-weight: 500; }
.trainer-pick-card button { padding: 0.4rem 0.9rem; font-size: 0.85rem; }

.exercise-block {
    background: #0f1419;
    border-radius: 6px;
    padding: 0.9rem;
    margin: 0.75rem 0;
}
.exercise-block h4 { margin-bottom: 0.5rem; }

.set-row {
    display: grid;
    grid-template-columns: 50px 1fr 1fr 30px;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
}
.set-row .set-num { color: #a0a8b0; font-weight: 500; }
.set-row .icon-btn {
    background: none;
    color: #ff6b6b;
    padding: 0.2rem 0.4rem;
    font-size: 1.1rem;
}
.set-row .icon-btn:hover { background: rgba(255,107,107,0.1); }

.planned-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 0.6rem;
    margin-bottom: 0.4rem;
    background: #161b22;
    border-radius: 4px;
    font-size: 0.9rem;
}
.planned-row .planned-name { flex: 1; min-width: 0; }
.planned-row .planned-target { color: #a0a8b0; white-space: nowrap; }
.planned-row .planned-rest { color: #6c757d; font-size: 0.8rem; white-space: nowrap; }
.planned-row .planned-actions { display: flex; gap: 0.25rem; }
.planned-row .planned-actions button {
    background: #2a3340;
    color: #e6e8eb;
    border: none;
    border-radius: 4px;
    padding: 0.25rem 0.55rem;
    cursor: pointer;
    font-size: 0.9rem;
    line-height: 1;
}
.planned-row .planned-actions button:hover { background: #3a4350; }
.planned-row .planned-actions .btn-delete {
    color: #ff6b6b;
    font-weight: 600;
    padding: 0.35rem 0.7rem;
}
.planned-row .planned-actions .btn-delete:hover { background: rgba(255,107,107,0.15); }

.list-item .btn-delete-icon {
    background: transparent;
    border: none;
    color: #e53935;
    cursor: pointer;
    font-size: 0.95rem;
    padding: 0;
    line-height: 1;
}
.list-item .btn-delete-icon:hover { color: #ff1744; }

/* === Nutrition forms (add meal + add item) === */
.nutrition-add-form {
    display: grid;
    gap: 0.5rem 0.7rem;
    align-items: end;
    margin-top: 0.7rem;
    padding: 0.8rem;
    background: rgba(77,171,247,0.04);
    border: 1px dashed #2a3340;
    border-radius: 8px;
}
.nutrition-add-form .nf-field { display: flex; flex-direction: column; gap: 0.25rem; min-width: 0; }
.nutrition-add-form .nf-field label {
    font-size: 0.7rem; color: #8a93a0;
    text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600;
}
.nutrition-add-form input,
.nutrition-add-form select {
    padding: 0.45rem 0.6rem;
    background: #0e1116;
    border: 1px solid #2a3340;
    border-radius: 6px;
    color: #e6e8eb;
    font-size: 0.92rem;
    min-width: 0;
    width: 100%;
}
.nutrition-add-form input:focus,
.nutrition-add-form select:focus {
    outline: none; border-color: #4dabf7;
    box-shadow: 0 0 0 2px rgba(77,171,247,0.18);
}
.nutrition-add-form .nf-macros {
    display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0.4rem;
}
.nutrition-add-form button.nf-btn {
    padding: 0.55rem 1rem;
    background: #4dabf7; color: #0e1116;
    border: none; border-radius: 6px;
    font-weight: 700; font-size: 0.9rem;
    cursor: pointer; white-space: nowrap;
}
.nutrition-add-form button.nf-btn:hover { background: #6cb8fa; }

.nf-meal-form { grid-template-columns: 0.8fr 2fr auto; }
.nf-meal-form .nf-field:first-child {
    grid-column: 1 / -1;
}
.nf-meal-form .meal-type-select {
    padding: 0.6rem 0.7rem;
    font-size: 0.98rem;
    font-weight: 600;
}
.nf-item-form { grid-template-columns: 2.2fr 1fr 0.9fr 1.8fr auto; }

@media (max-width: 720px) {
    .nf-meal-form,
    .nf-item-form { grid-template-columns: 1fr 1fr; }
    .nf-item-form .nf-field.nf-macros-wrap { grid-column: 1 / -1; }
    .nutrition-add-form button.nf-btn { grid-column: 1 / -1; }
}
.planned-row .planned-actions button:disabled { opacity: 0.3; cursor: not-allowed; }
.planned-row .planned-actions .btn-toggle {
    background: #2a3340;
    color: #e6e8eb;
    padding: 0.35rem 0.7rem;
}
.planned-row.completed { background: rgba(77,200,120,0.08); border-left: 3px solid #4dc878; }
.planned-row.completed .btn-toggle { background: #4dc878; color: #0f1419; font-weight: 600; }
.planned-row.completed .btn-toggle:hover { background: #3fb068; }
.planned-row .completion-badge {
    color: #a0a8b0;
    font-size: 0.85rem;
    white-space: nowrap;
    padding: 0.2rem 0.5rem;
    background: rgba(255,255,255,0.04);
    border-radius: 3px;
}

.add-set-form {
    display: grid;
    grid-template-columns: 50px 1fr 1fr auto;
    gap: 0.5rem;
    margin-top: 0.6rem;
    align-items: center;
}
.add-set-form input { padding: 0.5rem 0.7rem; }

/* Veci dropdown za izbor vjezbi (trener) */
#trainerExerciseSelect,
.day-exercise-select,
#trainerStatsExerciseSelect {
    padding: 0.95rem 1rem;
    font-size: 1.05rem;
    min-height: 3rem;
}

/* Plan dan: select za vjezbu zauzima vise prostora od malih input polja */
.add-pe-form {
    grid-template-columns: minmax(220px, 2fr) 60px 70px 70px 80px auto auto !important;
}
.add-pe-form .day-exercise-select {
    width: 100%;
    min-width: 220px;
}
.add-pe-form .pe-reps,
.add-pe-form .pe-duration {
    grid-column: 3;
    grid-row: 1;
}
.add-pe-form .pe-mode-toggle {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 0.78rem;
    color: #a0a8b0;
    white-space: nowrap;
}
.add-pe-form .pe-mode-toggle label {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
}
.add-pe-form .pe-mode-toggle input[type="radio"] {
    width: auto;
    margin: 0;
}

/* Read-only profil prikaz */
.qr-image {
    display: flex;
    justify-content: center;
    padding: 1rem 0;
}
.qr-image img {
    max-width: 280px;
    width: 100%;
    background: #fff;
    border-radius: 8px;
    padding: 8px;
}

.profile-readonly { display: flex; flex-direction: column; gap: 0.4rem; margin-top: 0.5rem; }
.profile-avatar-row { display: flex; justify-content: center; padding: 0.5rem 0 1rem; }
.profile-row {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 0.5rem;
    padding: 0.4rem 0.6rem;
    background: #161b22;
    border-radius: 4px;
    font-size: 0.9rem;
}
.profile-row .profile-key { color: #a0a8b0; }
.profile-row .profile-val { color: #e6e8eb; word-break: break-word; white-space: pre-wrap; }

.trainer-link {
    color: #4dabf7;
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
}
.trainer-link:hover { text-decoration: underline; }

/* Role picker */
.role-picker { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; margin-bottom: 0.5rem; }
.role-option {
    background: #0f1419;
    border: 1px solid #2a3340;
    border-radius: 6px;
    padding: 0.8rem;
    cursor: pointer;
    text-align: center;
    transition: all 0.15s;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}
.role-option:has(input:checked) { border-color: #4dabf7; background: #1c3a5e; }
.role-option input { display: none; }
.role-option span { font-size: 1rem; font-weight: 500; }
.role-option small { color: #a0a8b0; font-size: 0.8rem; }

#trainerPickerWrap { display: flex; flex-direction: column; gap: 0.3rem; }
.small { font-size: 0.85rem; }
.small-btn { padding: 0.4rem 0.8rem; font-size: 0.85rem; margin-bottom: 0.5rem; }