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

:root {
    --primary-color: #10b981;
    --primary-dark: #059669;
    --primary-light: #34d399;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-tertiary: #9ca3af;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 20px;
}

@media (max-width: 768px) {
    body {
        padding: 0;
        background: #fff;
    }
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-primary);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

@media (max-width: 768px) {
    .container {
        border-radius: 0;
        box-shadow: none;
        min-height: 100vh;
    }
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    position: sticky;
    top: 0;
    z-index: 100;
}

@media (max-width: 768px) {
    .header {
        padding: 12px 16px;
    }
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.3px;
}

@media (max-width: 768px) {
    .logo {
        font-size: 16px;
    }
}
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

@media (max-width: 768px) {
    .logo {
        font-size: 18px;
    }
}

/* Status badge (account menu container) */
.status-badge {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-logout {
    background: rgba(255, 255, 255, 0.3);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s;
    margin-left: 12px;
}

.btn-logout:hover {
    background: rgba(255, 255, 255, 0.4);
}

/* Content Area */
.content {
    flex: 1;
    padding: 32px 40px;
}

@media (max-width: 768px) {
    .content {
        padding: 20px 16px;
    }
}

/* Service Unavailable */
.service-unavailable {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    text-align: center;
}

.service-unavailable h2 {
    font-size: 28px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.service-unavailable p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* Upload Container */
.upload-container {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.upload-header {
    text-align: center;
    margin-bottom: 28px;
}

.upload-header h1 {
    font-size: 26px;
    margin-bottom: 6px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@media (max-width: 768px) {
    .upload-header h1 {
        font-size: 21px;
    }
    .upload-header p {
        font-size: 13px;
    }
}

.upload-header p {
    font-size: 15px;
    color: var(--text-secondary);
}

/* Form */
.upload-form {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.form-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.form-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group input {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s;
    font-family: inherit;
    background: var(--bg-primary);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-group input::placeholder {
    color: var(--text-tertiary);
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--primary-light);
    border-radius: 10px;
    padding: 32px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 160px;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary-color);
    background: rgba(16, 185, 129, 0.05);
    transform: translateY(-2px);
}

.upload-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.upload-subtext {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Files List */
.files-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

#filesContainer {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.file-icon {
    font-size: 24px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.file-details {
    flex: 1;
    text-align: left;
    min-width: 0;
}

.file-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    word-break: break-all;
    font-size: 14px;
}

.file-size {
    font-size: 12px;
    color: var(--text-secondary);
}

.btn-remove {
    background: transparent;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-tertiary);
    transition: color 0.3s;
    padding: 0;
    flex-shrink: 0;
}

.btn-remove:hover {
    color: var(--danger-color);
}

/* Add More Button */
.btn-add-more {
    padding: 12px 16px;
    border: 2px dashed var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    align-self: flex-start;
}

.btn-add-more:hover {
    background: rgba(16, 185, 129, 0.05);
}

/* Payment Box */
.payment-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
}

.payment-summary {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.payment-summary p {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-secondary);
}

.payment-summary span {
    color: var(--text-primary);
    font-weight: 600;
}

.payment-total {
    border-top: 2px solid var(--border-color);
    padding-top: 10px;
    margin-top: 8px;
    font-size: 16px !important;
    color: var(--primary-color) !important;
    font-weight: 700 !important;
}

/* Checkbox */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
    user-select: none;
}

.checkbox-label input {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

/* Buttons */
.btn-primary,
.btn-secondary {
    padding: 14px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    width: 100%;
    min-height: 52px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

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

.btn-secondary:hover {
    background: var(--bg-tertiary);
}

/* Loader */
.loader {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Payment Status */
.payment-status {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    text-align: center;
    animation: fadeIn 0.3s ease-in;
}

.status-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(16, 185, 129, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.payment-status h3 {
    font-size: 24px;
    color: var(--text-primary);
    margin: 0;
}

.payment-status p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 14px;
}

.phone-display {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
    margin-top: 12px !important;
}

/* Success Message */
.success-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    text-align: center;
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.success-message h2 {
    font-size: 28px;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.success-message > p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.success-details {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    text-align: left;
    width: 100%;
    max-width: 400px;
    margin-bottom: 24px;
}

.success-details p {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

.success-details p:last-child {
    border-bottom: none;
}

.success-details strong {
    color: var(--primary-color);
}

/* Error Message */
.error-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    text-align: center;
    background: rgba(239, 68, 68, 0.05);
    border-radius: 8px;
    padding: 32px;
    animation: slideUp 0.5s ease-out;
}

.error-message h3 {
    font-size: 20px;
    color: var(--danger-color);
    margin-bottom: 16px;
}

.error-message button {
    margin-top: 20px;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 20px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 12px;
}

/* Responsive */
@media (max-width: 768px) {
    .content {
        padding: 24px;
    }

    .upload-header h1 {
        font-size: 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .upload-zone {
        padding: 32px 16px;
        min-height: 150px;
    }
}

/* Auth Styles */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
    padding: 20px;
}

.auth-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-md);
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.auth-header h1 {
    font-size: 28px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.auth-header p {
    font-size: 14px;
    color: var(--text-secondary);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.auth-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.auth-form .form-group input {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s;
    font-family: inherit;
}

.auth-form .form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.auth-form .form-group input::placeholder {
    color: var(--text-tertiary);
}

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

.auth-toggle a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
}

.auth-toggle a:hover {
    text-decoration: underline;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 24px 0;
    color: var(--text-secondary);
    font-size: 12px;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.btn-google {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 12px 24px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-google:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
}

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

.help-text {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Coupon Section */
.coupon-toggle {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    user-select: none;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: background 0.2s;
}
.coupon-toggle:hover {
    background: var(--bg-tertiary);
}
.coupon-toggle-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
}
.coupon-chevron {
    transition: transform 0.2s;
    color: var(--text-secondary);
}
.coupon-dropdown {
    display: none;
    margin-top: 8px;
    padding: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}
.coupon-row {
    display: flex;
    gap: 8px;
}
.coupon-input {
    flex: 1;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.coupon-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}
.coupon-input::placeholder {
    color: var(--text-tertiary);
    font-weight: 400;
    letter-spacing: 0;
    text-transform: none;
}
.coupon-btn {
    padding: 12px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s;
}
.coupon-btn:hover {
    background: var(--primary-dark);
}
.coupon-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}
.coupon-message {
    margin-top: 8px;
    font-size: 13px;
}

/* Slots Dashboard */
.slots-dashboard-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 18px;
}

.slots-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 14px 12px;
    text-align: center;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.slots-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.1);
}

.slots-card--available {
    background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
    border-color: #bbf7d0;
}

.slots-card--buy {
    cursor: pointer;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-color: #059669;
}

.slots-card--buy .slots-card-label,
.slots-card--buy .slots-card-value {
    color: #fff;
}

.slots-card--buy .slots-card-icon {
    stroke: #fff;
}

.slots-card-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-bottom: 6px;
}

.slots-card-icon {
    width: 16px;
    height: 16px;
    stroke: var(--text-secondary);
    flex-shrink: 0;
}

.slots-card-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.4px;
}

.slots-card-value {
    font-size: 26px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 4px 0 0;
    line-height: 1;
}

.slots-card--available .slots-card-value {
    color: #059669;
}

@media (max-width: 600px) {
    .slots-dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .slots-card {
        padding: 10px 8px;
    }

    .slots-card-value {
        font-size: 20px;
    }

    .slots-card-label {
        font-size: 10px;
    }

    .slots-card-icon {
        width: 13px;
        height: 13px;
    }
}

/* Slots Package Modal Cards */
.slot-package-card {
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    padding: 14px 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.25s ease;
    background: #fff;
    position: relative;
}

.slot-package-card:hover {
    border-color: #10b981;
    box-shadow: 0 3px 10px rgba(16, 185, 129, 0.1);
}

.slot-package-card.selected {
    border-color: #10b981;
    background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.15);
}

.slot-package-card.selected::after {
    content: '✓';
    position: absolute;
    top: 6px;
    right: 6px;
    background: #10b981;
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 12px;
}

.slot-package-name {
    font-size: 14px;
    font-weight: 700;
    color: #111827;
    margin: 0 0 6px 0;
}

.slot-package-slots {
    font-size: 24px;
    font-weight: 700;
    color: #10b981;
    margin: 0 0 2px 0;
}

.slot-package-label {
    font-size: 11px;
    color: #6b7280;
    margin: 0 0 8px 0;
}

.slot-package-price {
    font-size: 15px;
    font-weight: 700;
    color: #111827;
    margin: 8px 0 3px 0;
}

.slot-package-discount {
    font-size: 11px;
    color: #059669;
    font-weight: 600;
    margin: 0;
}

@media (max-width: 480px) {
    .slot-package-card {
        padding: 10px 8px;
    }

    .slot-package-slots {
        font-size: 20px;
    }

    .slot-package-price {
        font-size: 13px;
    }
}



@media (max-width: 480px) {
    .auth-card {
        padding: 24px;
    }

    .auth-header h1 {
        font-size: 22px;
    }

    .content {
        padding: 14px;
    }

    .upload-header h1 {
        font-size: 19px;
    }

    .upload-header p {
        font-size: 13px;
    }

    .upload-form {
        gap: 18px;
    }

    .payment-details {
        flex-direction: column;
        gap: 4px;
    }
}

/* ── Slots Package Selection Card ───────────────────────────────────────────── */
.slot-package-card {
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    padding: 20px 16px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #fff;
    position: relative;
}

.slot-package-card:hover {
    border-color: #10b981;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.1);
}

.slot-package-card.selected {
    border-color: #10b981;
    background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.15);
}

.slot-package-card.selected::after {
    content: '✓';
    position: absolute;
    top: 8px;
    right: 8px;
    background: #10b981;
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 14px;
}

.slot-package-name {
    font-size: 16px;
    font-weight: 700;
    color: #111827;
    margin: 0 0 8px 0;
}

.slot-package-slots {
    font-size: 28px;
    font-weight: 700;
    color: #10b981;
    margin: 0 0 4px 0;
}

.slot-package-label {
    font-size: 12px;
    color: #6b7280;
    margin: 0 0 12px 0;
}

.slot-package-price {
    font-size: 18px;
    font-weight: 700;
    color: #111827;
    margin: 12px 0 4px 0;
}

.slot-package-discount {
    font-size: 12px;
    color: #059669;
    font-weight: 600;
    margin: 0;
}

/* ── Skeleton loading animation ───────────────────────────────────────────── */
@keyframes shimmer {
    0%   { background-position: -600px 0; }
    100% { background-position:  600px 0; }
}
.sk-line {
    border-radius: 6px;
    background: linear-gradient(90deg, #e5e7eb 25%, #f3f4f6 50%, #e5e7eb 75%);
    background-size: 600px 100%;
    animation: shimmer 1.4s ease-in-out infinite;
    display: block;
}