/* ============================================================
   Order Tracking — Nature Distilled + Organic Biophilic
   Unique design with earthy tones, organic shapes, glassmorphism
   ============================================================ */

/* --- Design Tokens --- */
:root {
    --track-bg: #F7F3EE;
    --track-surface: rgba(255, 255, 255, 0.65);
    --track-surface-hover: rgba(255, 255, 255, 0.85);
    --track-border: rgba(139, 115, 85, 0.12);
    --track-border-strong: rgba(139, 115, 85, 0.25);
    --track-text: #2E2A26;
    --track-text-muted: #6B5E52;
    --track-text-faint: #9B8E82;
    --track-primary: #8A9A7E;
    --track-primary-light: rgba(138, 154, 126, 0.15);
    --track-primary-dark: #6B7B5E;
    --track-accent: #C97B5C;
    --track-accent-light: rgba(201, 123, 92, 0.12);
    --track-success: #7A9E7E;
    --track-warning: #D4A574;
    --track-error: #C97B5C;
    --track-shadow: 0 8px 32px rgba(46, 42, 38, 0.08);
    --track-shadow-lg: 0 16px 48px rgba(46, 42, 38, 0.12);
    --track-radius: 24px;
    --track-radius-sm: 16px;
    --track-radius-pill: 60px;
    --track-blur: 20px;
    --track-transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
.md-tracking-container * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.md-tracking-container {
    position: relative;
    z-index: 2;
    margin: 0 auto;
    padding: 20px 16px 100px;
    min-height: 100vh;
    font-family: 'Inter', 'Vazir', system-ui, -apple-system, sans-serif;
    direction: rtl;
}

/* Tablet */
@media (min-width: 768px) {
    .md-tracking-container {
        max-width: 640px;
        padding: 32px 24px 120px;
    }

    .md-tracking-title {
        font-size: 2.2rem;
    }

    .md-tracking-subtitle {
        font-size: 1rem;
    }

    .md-tracking-card {
        padding: 28px;
        border-radius: 28px;
    }

    .md-text-field {
        padding: 16px 48px 16px 20px;
        font-size: 0.95rem;
    }

    .md-btn {
        padding: 16px 28px;
        font-size: 0.95rem;
    }

    .md-order-card {
        padding: 28px;
        border-radius: 28px;
    }

    .md-order-card h4 {
        font-size: 1.2rem;
    }

    .md-order-card p {
        font-size: 0.9rem;
    }

    .md-timeline {
        margin: 32px 0 28px;
        padding: 0 12px;
    }

    .md-step-circle {
        width: 48px;
        height: 48px;
        line-height: 48px;
        font-size: 0.9rem;
    }

    .md-step-label {
        font-size: 0.78rem;
        margin-top: 12px;
    }

    .md-chat-box {
        padding: 24px;
        border-radius: 28px;
    }

    .md-chat-title {
        font-size: 1rem;
    }

    .md-messages {
        max-height: 280px;
    }

    .md-message {
        font-size: 0.85rem;
        padding: 12px 16px;
    }

    .md-chat-input input {
        padding: 14px 20px;
        font-size: 0.9rem;
    }

    .md-chat-send-btn {
        padding: 14px 24px;
        font-size: 0.9rem;
    }

    .md-fab {
        width: 60px;
        height: 60px;
        bottom: 32px;
        left: 32px;
        font-size: 1.3rem;
    }
}

/* Laptop / Small Desktop */
@media (min-width: 1024px) {
    .md-tracking-container {
        max-width: 800px;
        padding: 40px 32px 140px;
    }

    .md-top-app-bar {
        margin: -32px -32px 28px;
        padding: 16px 28px;
    }

    .md-brand-icon {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }

    .md-brand-text {
        font-size: 1.3rem;
    }

    .md-tracking-title {
        font-size: 2.5rem;
    }

    .md-tracking-subtitle {
        font-size: 1.05rem;
    }

    .md-tracking-card {
        padding: 32px;
    }

    .md-order-card {
        padding: 32px;
    }

    .md-order-card h4 {
        font-size: 1.3rem;
    }

    .md-order-card p {
        font-size: 0.95rem;
        line-height: 2;
    }

    .md-timeline {
        margin: 36px 0 32px;
    }

    .md-step-circle {
        width: 52px;
        height: 52px;
        line-height: 52px;
        font-size: 1rem;
    }

    .md-step-label {
        font-size: 0.82rem;
    }

    .md-chat-box {
        padding: 28px;
    }

    .md-messages {
        max-height: 320px;
    }

    .md-message {
        font-size: 0.9rem;
    }

    .md-item-row {
        padding: 14px 0;
    }

    .md-item-name {
        font-size: 0.9rem;
    }

    .md-item-price {
        font-size: 0.82rem;
    }

    .md-fab {
        width: 64px;
        height: 64px;
        bottom: 40px;
        left: 40px;
        font-size: 1.4rem;
    }

    /* Hover effects for desktop */
    .md-order-card {
        transition: box-shadow var(--track-transition), transform var(--track-transition);
    }

    .md-order-card:hover {
        box-shadow: var(--track-shadow-lg);
        transform: translateY(-2px);
    }

    .md-tracking-card {
        transition: box-shadow var(--track-transition), transform var(--track-transition);
    }

    .md-tracking-card:hover {
        box-shadow: var(--track-shadow-lg);
        transform: translateY(-2px);
    }

    .md-chat-box {
        transition: box-shadow var(--track-transition), transform var(--track-transition);
    }

    .md-chat-box:hover {
        box-shadow: var(--track-shadow-lg);
        transform: translateY(-2px);
    }
}

/* Desktop */
@media (min-width: 1280px) {
    .md-tracking-container {
        max-width: 900px;
        padding: 48px 40px 160px;
    }

    .md-tracking-title {
        font-size: 2.8rem;
    }

    .md-tracking-card {
        padding: 36px;
    }

    .md-order-card {
        padding: 36px;
    }

    .md-timeline {
        margin: 40px 0 36px;
    }

    .md-step-circle {
        width: 56px;
        height: 56px;
        line-height: 56px;
    }

    .md-chat-box {
        padding: 32px;
    }

    .md-messages {
        max-height: 360px;
    }

    .md-order-list-item {
        padding: 20px;
    }

    .md-top-app-bar {
        margin: -40px -40px 32px;
        padding: 18px 32px;
    }

    .md-brand-icon {
        width: 44px;
        height: 44px;
        font-size: 1.2rem;
    }

    .md-brand-text {
        font-size: 1.4rem;
    }
}

/* --- Ambient Background --- */
.md-ambient-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.md-ambient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: blobFloat 20s ease-in-out infinite;
}

.md-ambient-orb--1 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(138, 154, 126, 0.3), transparent 70%);
    top: -100px;
    right: -80px;
    animation-delay: 0s;
}

.md-ambient-orb--2 {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(201, 123, 92, 0.25), transparent 70%);
    bottom: 20%;
    left: -100px;
    animation-delay: -7s;
}

.md-ambient-orb--3 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(212, 165, 116, 0.2), transparent 70%);
    top: 50%;
    right: -60px;
    animation-delay: -14s;
}

@keyframes blobFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -40px) scale(1.1); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(15px, 35px) scale(1.05); }
}

/* --- Top App Bar --- */
.md-top-app-bar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    margin: -20px -16px 24px;
    background: rgba(247, 243, 238, 0.8);
    backdrop-filter: blur(var(--track-blur));
    -webkit-backdrop-filter: blur(var(--track-blur));
    border-bottom: 1px solid var(--track-border);
    transition: var(--track-transition);
}

.md-top-app-bar--scrolled {
    box-shadow: var(--track-shadow);
    background: rgba(247, 243, 238, 0.92);
}

.md-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--track-text);
}

.md-brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--track-primary), var(--track-primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
    box-shadow: 0 4px 12px rgba(138, 154, 126, 0.3);
}

.md-brand-text {
    font-family: 'Playfair Display', 'Vazir', serif;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--track-text);
    letter-spacing: -0.01em;
}

.md-brand-text span {
    color: var(--track-accent);
    margin: 0 2px;
}

.md-app-bar-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

.md-icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    border: none;
    background: transparent;
    color: var(--track-text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--track-transition);
    position: relative;
    text-decoration: none;
    font-size: 1.05rem;
}

.md-icon-btn:hover {
    background: var(--track-primary-light);
    color: var(--track-primary-dark);
}

.md-badge {
    position: absolute;
    top: 4px;
    left: 4px;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    background: var(--track-accent);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 5px;
    box-shadow: 0 2px 6px rgba(201, 123, 92, 0.3);
}

/* --- Tracking Header --- */
.md-tracking-header {
    text-align: center;
    margin-bottom: 28px;
    position: relative;
}

.md-tracking-header::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--track-primary), var(--track-accent));
    border-radius: 2px;
    margin: 16px auto 0;
}

.md-tracking-title {
    font-family: 'Playfair Display', 'Vazir', serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--track-text);
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.md-tracking-subtitle {
    font-size: 0.9rem;
    color: var(--track-text-muted);
    margin-top: 6px;
    line-height: 1.7;
}

/* --- Search Card --- */
.md-tracking-card {
    background: var(--track-surface);
    backdrop-filter: blur(var(--track-blur));
    -webkit-backdrop-filter: blur(var(--track-blur));
    border-radius: var(--track-radius);
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid var(--track-border);
    box-shadow: var(--track-shadow);
    position: relative;
    overflow: hidden;
}

.md-tracking-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--track-primary), var(--track-accent), var(--track-warning));
    border-radius: var(--track-radius) var(--track-radius) 0 0;
}

.md-input-group {
    position: relative;
    display: flex;
    align-items: center;
    margin-bottom: 14px;
}

.md-input-icon {
    position: absolute;
    right: 16px;
    font-size: 0.95rem;
    color: var(--track-text-faint);
    pointer-events: none;
    transition: var(--track-transition);
}

.md-text-field {
    width: 100%;
    padding: 14px 44px 14px 18px;
    background: rgba(255, 255, 255, 0.5);
    border: 1.5px solid var(--track-border);
    border-radius: var(--track-radius-pill);
    color: var(--track-text);
    font-family: inherit;
    font-size: 0.9rem;
    transition: var(--track-transition);
    box-shadow: 0 2px 8px rgba(46, 42, 38, 0.04);
}

.md-text-field::placeholder {
    color: var(--track-text-faint);
}

.md-text-field:focus {
    outline: none;
    border-color: var(--track-primary);
    box-shadow: 0 0 0 4px var(--track-primary-light), 0 4px 12px rgba(46, 42, 38, 0.06);
    background: rgba(255, 255, 255, 0.8);
}

.md-text-field:focus + .md-input-icon,
.md-input-group:focus-within .md-input-icon {
    color: var(--track-primary);
}

.md-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    border-radius: var(--track-radius-pill);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--track-transition);
    border: none;
    text-decoration: none;
}

.md-btn--filled {
    background: linear-gradient(135deg, var(--track-primary), var(--track-primary-dark));
    color: white;
    box-shadow: 0 4px 16px rgba(138, 154, 126, 0.3);
}

.md-btn--filled:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(138, 154, 126, 0.4);
}

.md-btn--filled:active {
    transform: translateY(0) scale(0.98);
}

.md-btn--block {
    width: 100%;
}

/* --- Order Card --- */
.md-order-card {
    background: var(--track-surface);
    backdrop-filter: blur(var(--track-blur));
    -webkit-backdrop-filter: blur(var(--track-blur));
    border-radius: var(--track-radius);
    padding: 24px;
    margin-bottom: 20px;
    border: 1px solid var(--track-border);
    box-shadow: var(--track-shadow);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.5s ease-out;
}

.md-order-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--track-primary), var(--track-accent));
    border-radius: var(--track-radius) var(--track-radius) 0 0;
}

.md-order-card h4 {
    font-family: 'Playfair Display', 'Vazir', serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--track-text);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--track-border);
}

.md-order-card h5 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--track-text);
    margin-bottom: 12px;
}

.md-order-card h6 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--track-text-muted);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.md-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    margin-bottom: 16px;
}

.md-col {
    flex: 1 1 45%;
    min-width: 0;
}

.md-order-card p {
    font-size: 0.88rem;
    line-height: 1.8;
    color: var(--track-text-muted);
    margin-bottom: 4px;
}

.md-order-card strong,
.md-order-card b {
    color: var(--track-text);
    font-weight: 600;
}

.md-total-price {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--track-primary-dark);
    margin: 16px 0;
    padding: 12px 16px;
    background: var(--track-primary-light);
    border-radius: var(--track-radius-sm);
    text-align: center;
}

/* --- Status Badge --- */
.md-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--track-radius-pill);
    font-size: 0.78rem;
    font-weight: 600;
    margin-top: 8px;
}

.md-status-badge--pending {
    background: rgba(212, 165, 116, 0.15);
    color: #B8860B;
    border: 1px solid rgba(212, 165, 116, 0.25);
}

.md-status-badge--confirmed {
    background: var(--track-primary-light);
    color: var(--track-primary-dark);
    border: 1px solid rgba(138, 154, 126, 0.25);
}

.md-status-badge--shipped {
    background: rgba(100, 149, 237, 0.12);
    color: #4169E1;
    border: 1px solid rgba(100, 149, 237, 0.2);
}

.md-status-badge--delivered {
    background: rgba(122, 158, 126, 0.15);
    color: #4A7C4E;
    border: 1px solid rgba(122, 158, 126, 0.25);
}

/* --- Timeline / Stepper --- */
.md-timeline {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin: 28px 0 24px;
    position: relative;
    padding: 0 8px;
}

.md-timeline::before {
    content: '';
    position: absolute;
    top: 20px;
    right: 24px;
    left: 24px;
    height: 2px;
    background: var(--track-border);
    border-radius: 1px;
}

.md-timeline::after {
    content: '';
    position: absolute;
    top: 20px;
    right: 24px;
    height: 2px;
    background: linear-gradient(90deg, var(--track-primary), var(--track-accent));
    border-radius: 1px;
    transition: width 0.6s ease;
}

.md-step {
    text-align: center;
    flex: 1;
    position: relative;
    z-index: 2;
}

.md-step-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin: 0 auto;
    line-height: 40px;
    font-weight: 700;
    font-size: 0.85rem;
    transition: var(--track-transition);
    position: relative;
    background: rgba(255, 255, 255, 0.6);
    border: 2px solid var(--track-border);
    color: var(--track-text-faint);
    box-shadow: 0 2px 8px rgba(46, 42, 38, 0.06);
}

.md-step.done .md-step-circle {
    background: linear-gradient(135deg, var(--track-primary), var(--track-primary-dark));
    border-color: transparent;
    color: white;
    box-shadow: 0 4px 16px rgba(138, 154, 126, 0.35);
}

.md-step.active .md-step-circle {
    background: linear-gradient(135deg, var(--track-accent), #D4957A);
    border-color: transparent;
    color: white;
    box-shadow: 0 4px 20px rgba(201, 123, 92, 0.4);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(201, 123, 92, 0.4); }
    50% { box-shadow: 0 4px 32px rgba(201, 123, 92, 0.6); }
}

.md-step-label {
    font-size: 0.7rem;
    margin-top: 10px;
    color: var(--track-text-faint);
    font-weight: 500;
    line-height: 1.4;
    transition: var(--track-transition);
}

.md-step.done .md-step-label {
    color: var(--track-primary-dark);
    font-weight: 600;
}

.md-step.active .md-step-label {
    color: var(--track-accent);
    font-weight: 700;
}

/* --- Order Items --- */
.md-order-items {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--track-border);
}

.md-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--track-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 12px;
}

.md-item-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--track-border);
    transition: var(--track-transition);
}

.md-item-row:last-child {
    border-bottom: none;
}

.md-item-row:hover {
    background: rgba(255, 255, 255, 0.4);
    margin: 0 -12px;
    padding: 12px;
    border-radius: var(--track-radius-sm);
}

.md-item-info {
    flex: 1;
    min-width: 0;
}

.md-item-name {
    font-weight: 600;
    display: block;
    color: var(--track-text);
    font-size: 0.88rem;
    line-height: 1.5;
}

.md-item-price {
    color: var(--track-text-muted);
    font-size: 0.78rem;
    margin-top: 2px;
    direction: ltr;
    display: inline-block;
}

.md-item-qty {
    background: var(--track-primary-light);
    border: 1px solid rgba(138, 154, 126, 0.2);
    padding: 4px 12px;
    border-radius: var(--track-radius-pill);
    font-size: 0.72rem;
    color: var(--track-primary-dark);
    font-weight: 600;
    min-width: 40px;
    text-align: center;
    white-space: nowrap;
}

/* --- Chat Box --- */
.md-chat-box {
    background: var(--track-surface);
    backdrop-filter: blur(var(--track-blur));
    -webkit-backdrop-filter: blur(var(--track-blur));
    border-radius: var(--track-radius);
    padding: 20px;
    margin-top: 20px;
    border: 1px solid var(--track-border);
    box-shadow: var(--track-shadow);
    position: relative;
    overflow: hidden;
}

.md-chat-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--track-accent), var(--track-warning), var(--track-primary));
    border-radius: var(--track-radius) var(--track-radius) 0 0;
}

.md-chat-title {
    font-weight: 700;
    color: var(--track-text);
    margin-bottom: 14px;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.md-chat-title::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--track-success);
    box-shadow: 0 0 8px rgba(122, 158, 126, 0.5);
    animation: pulse 2s ease-in-out infinite;
}

.md-messages {
    max-height: 220px;
    overflow-y: auto;
    margin-bottom: 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 4px;
}

.md-message {
    padding: 10px 14px;
    border-radius: 18px;
    max-width: 85%;
    font-size: 0.82rem;
    line-height: 1.7;
    animation: fadeInUp 0.3s ease-out;
}

.md-message.user {
    background: rgba(255, 255, 255, 0.7);
    color: var(--track-text);
    margin-right: auto;
    border: 1px solid var(--track-border);
    border-bottom-right-radius: 6px;
    box-shadow: 0 2px 6px rgba(46, 42, 38, 0.04);
}

.md-message.admin {
    background: linear-gradient(135deg, var(--track-primary-light), rgba(138, 154, 126, 0.08));
    color: var(--track-primary-dark);
    margin-left: auto;
    border: 1px solid rgba(138, 154, 126, 0.2);
    border-bottom-left-radius: 6px;
    box-shadow: 0 2px 6px rgba(138, 154, 126, 0.08);
}

.md-chat-input-area {
    display: flex;
    gap: 10px;
    margin-top: 12px;
}

.md-chat-input {
    flex: 1;
}

.md-chat-input input {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--track-radius-pill);
    border: 1.5px solid var(--track-border);
    background: rgba(255, 255, 255, 0.5);
    color: var(--track-text);
    font-family: inherit;
    font-size: 0.85rem;
    transition: var(--track-transition);
}

.md-chat-input input::placeholder {
    color: var(--track-text-faint);
}

.md-chat-input input:focus {
    outline: none;
    border-color: var(--track-primary);
    box-shadow: 0 0 0 4px var(--track-primary-light);
    background: rgba(255, 255, 255, 0.8);
}

.md-chat-send-btn {
    background: linear-gradient(135deg, var(--track-primary), var(--track-primary-dark));
    border: none;
    border-radius: var(--track-radius-pill);
    padding: 12px 20px;
    font-weight: 600;
    color: white;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.85rem;
    box-shadow: 0 4px 12px rgba(138, 154, 126, 0.3);
    transition: var(--track-transition);
    white-space: nowrap;
}

.md-chat-send-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(138, 154, 126, 0.4);
}

.md-chat-send-btn:active {
    transform: translateY(0) scale(0.97);
}

/* --- Order List --- */
.md-order-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    margin-bottom: 12px;
    background: var(--track-surface);
    backdrop-filter: blur(var(--track-blur));
    -webkit-backdrop-filter: blur(var(--track-blur));
    border-radius: var(--track-radius-sm);
    border: 1px solid var(--track-border);
    box-shadow: 0 4px 16px rgba(46, 42, 38, 0.06);
    cursor: pointer;
    transition: var(--track-transition);
    animation: fadeInUp 0.4s ease-out;
}

.md-order-list-item:hover {
    background: var(--track-surface-hover);
    border-color: var(--track-border-strong);
    transform: translateY(-2px);
    box-shadow: var(--track-shadow-lg);
}

.md-order-list-item:active {
    transform: translateY(0) scale(0.98);
}

/* --- Empty State --- */
.md-empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--track-text-faint);
    font-size: 0.9rem;
}

.md-empty-state::before {
    content: '🌿';
    display: block;
    font-size: 2.5rem;
    margin-bottom: 12px;
    opacity: 0.6;
}

/* --- FAB --- */
.md-fab {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 200;
    width: 56px;
    height: 56px;
    border-radius: 18px;
    border: none;
    background: linear-gradient(135deg, var(--track-accent), #D4957A);
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(201, 123, 92, 0.35);
    transition: var(--track-transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.md-fab:hover {
    transform: scale(1.08) rotate(-5deg);
    box-shadow: 0 12px 32px rgba(201, 123, 92, 0.45);
}

.md-fab:active {
    transform: scale(0.95);
}

.md-fab__badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 22px;
    height: 22px;
    border-radius: 11px;
    background: var(--track-text);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 6px;
    box-shadow: 0 2px 8px rgba(46, 42, 38, 0.2);
}

/* --- Animations --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Scrollbar --- */
.md-messages::-webkit-scrollbar {
    width: 4px;
}

.md-messages::-webkit-scrollbar-track {
    background: transparent;
}

.md-messages::-webkit-scrollbar-thumb {
    background: var(--track-border-strong);
    border-radius: 2px;
}

/* --- Responsive --- */
@media (max-width: 400px) {
    .md-tracking-container {
        padding: 16px 12px 80px;
    }

    .md-tracking-title {
        font-size: 1.5rem;
    }

    .md-tracking-card {
        padding: 18px;
    }

    .md-order-card {
        padding: 18px;
    }

    .md-timeline {
        padding: 0 4px;
    }

    .md-step-circle {
        width: 34px;
        height: 34px;
        line-height: 34px;
        font-size: 0.75rem;
    }

    .md-step-label {
        font-size: 0.65rem;
    }
}

/* --- Accessibility --- */
@media (prefers-reduced-motion: reduce) {
    .md-ambient-orb,
    .md-step.active .md-step-circle,
    .md-chat-title::before {
        animation: none;
    }

    .md-order-card,
    .md-order-list-item,
    .md-message {
        animation: none;
    }
}

@media (forced-colors: active) {
    .md-order-card,
    .md-tracking-card,
    .md-chat-box {
        border: 2px solid ButtonText;
    }

    .md-btn--filled,
    .md-chat-send-btn {
        border: 2px solid ButtonText;
    }
}

/* --- Focus Visible --- */
.md-btn:focus-visible,
.md-icon-btn:focus-visible,
.md-text-field:focus-visible,
.md-chat-send-btn:focus-visible,
.md-order-list-item:focus-visible {
    outline: 3px solid var(--track-primary);
    outline-offset: 2px;
}