/* Snackalyzer Styles */

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

:root {
    --primary:       #3B5BDB;
    --primary-hover: #2F4AC5;
    --primary-dim:   rgba(59, 91, 219, 0.08);
    --success:       #2F9E6F;
    --success-dim:   rgba(47, 158, 111, 0.12);
    --error:         #E03131;
    --error-dim:     rgba(224, 49, 49, 0.08);
    --warning:       #E67700;

    --bg:       #F4F5F7;
    --card:     #FFFFFF;
    --surface:  #F0F1F3;

    --text:     #1A1B1E;
    --text-2:   #5C5F66;
    --text-3:   #909296;

    --border:   #DDE1E7;
    --border-2: #E8EBF0;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow:    0 4px 12px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.10);

    --radius:    12px;
    --radius-sm: 8px;

    --font: 'Plus Jakarta Sans', system-ui, sans-serif;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    padding: 20px 16px;
}

.container {
    max-width: 780px;
    margin: 0 auto;
}

/* ============================================================
   HEADER
   ============================================================ */

header {
    text-align: center;
    margin-bottom: 22px;
    padding: 14px 20px;
}

h1 {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text);
    margin-bottom: 4px;
}

.subtitle {
    color: var(--text-3);
    font-size: 0.875rem;
    font-weight: 500;
}

/* ============================================================
   MODE TOGGLE
   ============================================================ */

.mode-toggle {
    display: inline-flex;
    background: var(--surface);
    border-radius: 10px;
    padding: 4px;
    border: 1px solid var(--border);
    margin: 14px auto 0;
    gap: 3px;
}

.mode-btn {
    padding: 6px 16px;
    border: none;
    background: none;
    border-radius: 7px;
    font-size: 0.82rem;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    color: var(--text-3);
    transition: all 0.18s;
    white-space: nowrap;
}

.mode-btn.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 1px 4px rgba(59, 91, 219, 0.25);
}

.mode-btn:not(.active):hover {
    color: var(--text);
    background: var(--border-2);
}

/* ============================================================
   SECTIONS
   ============================================================ */

section {
    background: var(--card);
    border: 1px solid var(--border-2);
    border-radius: var(--radius);
    padding: 22px;
    margin-bottom: 14px;
    box-shadow: var(--shadow-sm);
}

h2 {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
}

.section-header h2 {
    margin-bottom: 0;
}

/* ============================================================
   TOOLTIP
   ============================================================ */

.tooltip-container {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.tooltip-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 17px;
    height: 17px;
    border-radius: 50%;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-3);
    font-size: 0.65rem;
    font-weight: 700;
    cursor: help;
    transition: all 0.15s;
}

.tooltip-icon:hover {
    background: var(--primary-dim);
    border-color: var(--primary);
    color: var(--primary);
}

.tooltip-text {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    left: 50%;
    top: calc(100% + 8px);
    transform: translateX(calc(16px - 50%));
    background: var(--text);
    color: #fff;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 400;
    white-space: normal;
    width: 240px;
    text-align: left;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: opacity 0.18s, visibility 0.18s;
    pointer-events: none;
}

.tooltip-text::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 41%;
    border: 6px solid transparent;
    border-bottom-color: var(--text);
}

.tooltip-container:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* ============================================================
   INPUTS
   ============================================================ */

.input-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 14px;
    margin-bottom: 16px;
}

.input-group {
    display: flex;
    flex-direction: column;
}

label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 7px;
    color: var(--text-2);
}

input[type="number"] {
    padding: 10px 12px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: var(--font);
    font-weight: 500;
    background: var(--card);
    color: var(--text);
    transition: border-color 0.18s, box-shadow 0.18s;
    -moz-appearance: textfield;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
}

input[type="number"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-dim);
}

input[type="number"]::placeholder {
    color: var(--text-3);
    font-weight: 400;
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn-primary {
    width: 100%;
    padding: 13px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 700;
    font-family: var(--font);
    cursor: pointer;
    transition: background-color 0.18s, box-shadow 0.18s, transform 0.1s;
}

.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(59, 91, 219, 0.25);
}

.btn-secondary {
    padding: 7px 14px;
    background: var(--card);
    color: var(--text-2);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: all 0.18s;
    margin-bottom: 0;
}

.btn-secondary:hover {
    background: var(--surface);
    color: var(--text);
}

.btn-primary:active,
.btn-secondary:active {
    transform: scale(0.98);
}

/* ============================================================
   MORE OPTIONS
   ============================================================ */

.more-options {
    margin-top: 14px;
    cursor: pointer;
}

.more-options summary {
    color: var(--text-3);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    user-select: none;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 0;
    transition: color 0.15s;
}

.more-options summary::-webkit-details-marker {
    display: none;
}

.more-options summary::before {
    content: '▶';
    font-size: 0.6rem;
    transition: transform 0.2s;
    display: inline-block;
}

.more-options[open] summary::before {
    transform: rotate(90deg);
}

.more-options summary:hover {
    color: var(--text-2);
}

.checkbox-group {
    margin-top: 10px;
    padding: 12px 14px;
    background: var(--surface);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 9px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0;
    text-transform: none;
    color: var(--text-2);
    transition: color 0.15s;
}

.checkbox-group label:hover {
    color: var(--text);
}

.checkbox-group input[type="checkbox"],
.snack-controls input[type="checkbox"],
.snack-checkbox {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--primary);
}

/* ============================================================
   LOGGED SECTION
   ============================================================ */

.logged-section {
    animation: fadeUp 0.25s ease;
}

.log-input-row {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
}

.log-input-row select {
    flex: 1;
    padding: 10px 12px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-family: var(--font);
    font-weight: 500;
    background: var(--card);
    color: var(--text);
    cursor: pointer;
    transition: border-color 0.18s;
    appearance: auto;
}

.log-input-row select:focus {
    outline: none;
    border-color: var(--primary);
}

.log-input-row input[type="number"] {
    width: 68px;
    text-align: center;
}

.log-input-row .btn-primary {
    width: auto;
    padding: 10px 18px;
}

.snack-item.logged {
    border-left-color: var(--primary);
}

/* Qty stepper */
.qty-stepper {
    display: inline-flex;
    align-items: center;
    border: 1.5px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
    vertical-align: middle;
}

.qty-btn {
    background: var(--card);
    border: none;
    width: 26px;
    height: 26px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--text-3);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.15s, color 0.15s;
    user-select: none;
    -webkit-user-select: none;
}

.qty-btn:hover {
    background: var(--surface);
    color: var(--text);
}

.qty-btn:active {
    background: var(--primary);
    color: #fff;
}

.qty-value {
    min-width: 26px;
    text-align: center;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text);
    border-left: 1.5px solid var(--border);
    border-right: 1.5px solid var(--border);
    padding: 4px 2px;
    line-height: 18px;
}

/* Remove logged btn */
.snack-item .remove-logged-btn {
    background: none;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 5px;
    transition: background-color 0.15s, color 0.15s;
    color: var(--text-3);
    line-height: 1;
}

.snack-item .remove-logged-btn:hover {
    background: var(--error-dim);
    color: var(--error);
}

/* Logged totals */
.logged-totals {
    margin-top: 12px;
    padding: 13px 16px;
    background: var(--primary-dim);
    border: 1px solid rgba(59, 91, 219, 0.15);
    border-radius: var(--radius-sm);
}

.logged-totals .totals-grid {
    grid-template-columns: repeat(4, 1fr);
}

.logged-totals .total-value {
    font-size: 1.05rem;
    color: var(--primary);
}

.logged-totals .total-label {
    color: var(--text-3);
}

.clear-log-btn {
    margin-top: 10px;
    width: 100%;
    color: var(--error);
}

.clear-log-btn:hover {
    background: var(--error-dim);
    border-color: var(--error);
    color: var(--error);
}

/* Totals sub-labels */
.totals-row-label {
    font-size: 0.68rem;
    opacity: 0.75;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 2px;
}

.total-item .total-sub {
    font-size: 0.72rem;
    color: var(--text-3);
    margin-top: 2px;
}

.total-item .overage {
    color: var(--warning);
    font-weight: 600;
}

/* ============================================================
   RESULTS
   ============================================================ */

.results-section {
    animation: fadeUp 0.3s ease;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.export-btn {
    margin-bottom: 18px;
    width: 100%;
}

/* Totals card */
.totals-card {
    margin-bottom: 16px;
    padding: 18px 20px;
    background: var(--primary);
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
}

.totals-card::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -10%;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    pointer-events: none;
}

.totals-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.total-item {
    text-align: center;
}

.total-label {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 4px;
}

.total-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.02em;
    line-height: 1;
}

/* Snack result items */
.snack-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 13px 14px;
    background: var(--surface);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    border-left: 3px solid var(--success);
    transition: opacity 0.3s, transform 0.3s, margin-bottom 0.3s, max-height 0.3s, padding 0.3s;
    max-height: 200px;
    overflow: hidden;
}

.snack-item.removing {
    opacity: 0;
    transform: translateX(100%);
    margin-bottom: 0;
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
}

.snack-info {
    flex: 1;
}

.snack-actions {
    display: flex;
    gap: 6px;
    margin-left: 12px;
}

.thumbs-down-btn {
    background: none;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    padding: 5px 8px;
    border-radius: 5px;
    transition: background-color 0.15s, transform 0.1s;
    color: var(--text-3);
}

.thumbs-down-btn:hover {
    background: var(--error-dim);
    color: var(--error);
}

.thumbs-down-btn:active {
    transform: scale(0.92);
}

.snack-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text);
    margin-bottom: 2px;
    letter-spacing: -0.01em;
}

.snack-quantity {
    color: var(--text-3);
    font-size: 0.8rem;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.snack-macros {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.snack-macros span {
    font-size: 0.78rem;
    color: var(--text-2);
}

/* ============================================================
   LOADING & ERROR
   ============================================================ */

.loading {
    text-align: center;
    padding: 48px 20px;
}

.loading p {
    color: var(--text-3);
    font-size: 0.875rem;
    margin-top: 14px;
}

.spinner {
    width: 36px;
    height: 36px;
    margin: 0 auto;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.75s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.error {
    background: var(--error-dim);
    border: 1px solid rgba(224, 49, 49, 0.15);
    color: var(--error);
}

/* ============================================================
   TOAST
   ============================================================ */

.toast {
    position: fixed;
    bottom: 22px;
    left: 50%;
    transform: translateX(-50%) translateY(16px);
    background: var(--text);
    color: #fff;
    padding: 11px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.25s, transform 0.25s;
    pointer-events: none;
    white-space: nowrap;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ============================================================
   HAMBURGER & SIDEBAR
   ============================================================ */

.hamburger-menu {
    position: fixed;
    top: 18px;
    left: 18px;
    z-index: 1001;
    width: 38px;
    height: 38px;
    background: var(--card);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    padding: 8px;
    box-shadow: var(--shadow-sm);
    transition: background 0.15s;
}

.hamburger-menu:hover {
    background: var(--surface);
}

.hamburger-menu span {
    width: 18px;
    height: 1.5px;
    background: var(--text-2);
    border-radius: 2px;
    transition: all 0.25s;
}

.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: -330px;
    width: 310px;
    background: var(--card);
    border-right: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    z-index: 1002;
    transition: left 0.28s cubic-bezier(0.16, 1, 0.3, 1);
    overflow-y: auto;
    padding: 22px 18px;
}

.sidebar.open {
    left: 0;
}

.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.28s, visibility 0.28s;
}

.sidebar-overlay.open {
    opacity: 1;
    visibility: visible;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-2);
}

.sidebar-header h3 {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-3);
    margin: 0;
}

.close-sidebar {
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--text-3);
    cursor: pointer;
    line-height: 1;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    transition: background 0.15s, color 0.15s;
}

.close-sidebar:hover {
    background: var(--surface);
    color: var(--text);
}

.snack-controls {
    padding: 10px 12px;
    background: var(--surface);
    border-radius: var(--radius-sm);
    margin-bottom: 4px;
}

.snack-controls label {
    display: flex;
    align-items: center;
    gap: 9px;
    cursor: pointer;
    font-weight: 700;
    font-size: 0.75rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text-2);
}

.snack-list {
    margin-top: 10px;
    display: grid;
    gap: 2px;
}

.snack-list-item {
    border-radius: 7px;
    font-size: 0.875rem;
}

.snack-checkbox-label {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 9px 10px;
    cursor: pointer;
    border-radius: 7px;
    transition: background-color 0.15s;
}

.snack-checkbox-label:hover {
    background: var(--surface);
}

.snack-checkbox {
    flex-shrink: 0;
}

.snack-list-content {
    flex: 1;
    min-width: 0;
}

.snack-list-name {
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 2px;
    color: var(--text);
}

.snack-list-macros {
    color: var(--text-3);
    font-size: 0.76rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.no-snacks-message {
    text-align: center;
    color: var(--text-3);
    padding: 24px;
    font-size: 0.875rem;
    font-style: italic;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 600px) {
    body {
        padding: 12px;
    }

    .hamburger-menu {
        top: 12px;
        left: 12px;
        width: 36px;
        height: 36px;
    }

    .sidebar {
        width: 285px;
        left: -295px;
        padding: 18px 14px;
    }

    header {
        margin-bottom: 14px;
        padding: 8px 12px;
    }

    h1 {
        font-size: 1.5rem;
    }

    .subtitle {
        font-size: 0.82rem;
    }

    section {
        padding: 16px;
        margin-bottom: 10px;
        border-radius: 10px;
    }

    h2 {
        font-size: 0.72rem;
        margin-bottom: 14px;
    }

    .input-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        margin-bottom: 12px;
    }

    label {
        font-size: 0.72rem;
    }

    input[type="number"] {
        padding: 9px 10px;
        font-size: 0.95rem;
    }

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

    .more-options {
        margin-top: 10px;
    }

    .more-options summary {
        padding: 6px 0;
    }

    .checkbox-group {
        padding: 10px 12px;
    }

    .totals-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .snack-item {
        padding: 11px 12px;
        margin-bottom: 7px;
    }

    .snack-name {
        font-size: 0.9rem;
    }

    .snack-macros span {
        font-size: 0.74rem;
    }

    .mode-btn {
        padding: 5px 12px;
        font-size: 0.78rem;
    }

    .log-input-row {
        flex-wrap: wrap;
    }

    .log-input-row select {
        flex: 1 1 100%;
        font-size: 0.85rem;
    }

    .log-input-row input[type="number"] {
        width: 60px;
    }

    .log-input-row .btn-primary {
        flex: 1;
    }

    .logged-totals .totals-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .total-value {
        font-size: 1.25rem;
    }

    .totals-card {
        padding: 14px 16px;
    }
}