/* UPS Equipment Collection - Styles */

:root {
    --color-bg: #0a0a0f;
    --color-surface: #12121a;
    --color-surface-elevated: #1a1a25;
    --color-border: #2a2a3a;
    --color-text: #e4e4e7;
    --color-text-muted: #71717a;
    --color-primary: #00d4aa;
    --color-primary-hover: #00f5c4;
    --color-primary-muted: rgba(0, 212, 170, 0.1);
    --color-error: #ef4444;
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --transition: 0.2s ease;
}

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

body {
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 640px;
    margin: 0 auto;
    padding: 24px 16px;
}

/* Header */
header {
    margin-bottom: 32px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 600;
}

/* Cards */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 16px;
}

.card.intro {
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-elevated) 100%);
    border-color: var(--color-primary);
    border-width: 1px;
}

.card h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card h2 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.card-description {
    color: var(--color-text-muted);
    font-size: 14px;
    margin-bottom: 20px;
}

/* Form */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.field-error {
    font-size: 12px;
    color: var(--color-error);
    min-height: 16px;
    display: block;
}

input.invalid,
select.invalid {
    border-color: var(--color-error);
    background: rgba(239, 68, 68, 0.05);
}

input.invalid:focus,
select.invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

input.valid {
    border-color: var(--color-success);
}

input.valid:focus {
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
}

label .optional {
    font-weight: 400;
    color: var(--color-text-muted);
    font-size: 12px;
}

/* Assets Table */
.assets-table {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.assets-table-header {
    display: grid;
    grid-template-columns: 1fr 2fr 1.5fr;
    gap: 12px;
    padding: 12px 16px;
    background: var(--color-surface-elevated);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
}

.asset-row {
    display: grid;
    grid-template-columns: 1fr 2fr 1.5fr;
    gap: 12px;
    padding: 14px 16px;
    border-top: 1px solid var(--color-border);
    font-size: 14px;
}

.asset-row:hover {
    background: var(--color-surface-elevated);
}

.asset-tag {
    font-family: 'JetBrains Mono', monospace;
    color: var(--color-primary);
    font-weight: 500;
}

.asset-name {
    color: var(--color-text);
}

.asset-serial {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--color-text-muted);
}

.no-assets {
    padding: 24px 16px;
    text-align: center;
    color: var(--color-text-muted);
}

#assets-card.hidden {
    display: none;
}

input, select {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    font-size: 15px;
    color: var(--color-text);
    font-family: inherit;
    transition: border-color var(--transition), box-shadow var(--transition);
}

input:focus, select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-muted);
}

input::placeholder {
    color: var(--color-text-muted);
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2371717a' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

/* Helper Text */
.helper-text {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-top: 16px;
    padding: 12px;
    background: var(--color-primary-muted);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--color-primary);
}

.helper-text svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Destination Card */
.card.destination {
    background: var(--color-surface-elevated);
}

.destination-info {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 12px;
}

.destination-icon {
    width: 48px;
    height: 48px;
    background: var(--color-primary-muted);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.destination-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--color-primary);
}

.dest-name {
    font-weight: 600;
    font-size: 15px;
}

.dest-address {
    color: var(--color-text-muted);
    font-size: 14px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    border: none;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg);
    width: 100%;
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary-muted);
}

.btn-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Submit Card */
.submit-card {
    text-align: center;
}

.submit-note {
    margin-top: 12px;
    font-size: 13px;
    color: var(--color-text-muted);
}

/* Loading State */
#loading {
    text-align: center;
    padding: 48px 24px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

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

/* Error State */
.error-icon {
    width: 56px;
    height: 56px;
    background: rgba(239, 68, 68, 0.1);
    border: 2px solid var(--color-error);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 24px;
    font-weight: 700;
    color: var(--color-error);
}

#error {
    text-align: center;
}

#error h2 {
    color: var(--color-error);
    margin-bottom: 8px;
}

/* Success State */
.success-icon {
    width: 56px;
    height: 56px;
    background: rgba(34, 197, 94, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.success-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--color-success);
}

.success-icon.large {
    width: 72px;
    height: 72px;
}

.success-icon.large svg {
    width: 40px;
    height: 40px;
}

#success, #already-submitted {
    text-align: center;
}

#success h2, #already-submitted h2 {
    margin-bottom: 8px;
}

/* Info Box */
.info-box {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: 16px;
    margin: 24px 0;
    text-align: left;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
}

.info-row:not(:last-child) {
    border-bottom: 1px solid var(--color-border);
}

.info-row .label {
    color: var(--color-text-muted);
    font-size: 14px;
}

.info-row .value {
    font-weight: 600;
    font-size: 14px;
}

.info-row .value.tracking {
    font-family: monospace;
    color: var(--color-primary);
}

.status-badge {
    padding: 4px 10px;
    background: var(--color-primary-muted);
    color: var(--color-primary);
    border-radius: 20px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Next Steps */
.next-steps {
    text-align: left;
    margin: 24px 0;
    padding: 20px;
    background: var(--color-surface-elevated);
    border-radius: var(--radius-md);
}

.next-steps h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.next-steps ol {
    list-style: none;
    counter-reset: steps;
}

.next-steps li {
    counter-increment: steps;
    padding: 8px 0;
    padding-left: 32px;
    position: relative;
    font-size: 14px;
}

.next-steps li::before {
    content: counter(steps);
    position: absolute;
    left: 0;
    width: 22px;
    height: 22px;
    background: var(--color-primary-muted);
    color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

/* Footer */
footer {
    margin-top: 48px;
    text-align: center;
    padding: 24px;
    border-top: 1px solid var(--color-border);
}

footer p {
    color: var(--color-text-muted);
    font-size: 13px;
}

/* Utility */
.hidden {
    display: none !important;
}

/* Pending Status */
.success-icon.pending {
    color: #f59e0b;
}

.status-pending {
    color: #f59e0b;
    font-weight: 600;
}

.help-text {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 14px;
    margin-top: 16px;
}

/* Multiple Packages */
#packages-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 16px;
}

.package-entry {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 16px;
}

.package-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.package-title {
    font-weight: 600;
    color: var(--color-text);
    font-size: 14px;
}

.btn-remove-package {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-remove-package:hover {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

#add-package-btn {
    width: 100%;
    padding: 12px;
    margin-bottom: 12px;
}

#add-package-btn svg {
    flex-shrink: 0;
}

/* Responsive */
@media (max-width: 480px) {
    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-group.full-width {
        grid-column: auto;
    }

    .card {
        padding: 20px;
    }

    .card h1 {
        font-size: 24px;
    }
}