/* ================================================================
   CC-GEN v2.0 — Responsive Breakpoints
   ================================================================ */

/* Mobile-first base is already in main.css */

/* Small phones → Large phones */
@media (min-width: 480px) {
    .main-grid {
        padding: 16px;
    }
    .card-3d {
        width: 340px;
        height: 214px;
    }
}

/* Phones → Small tablets */
@media (min-width: 640px) {
    .main-grid {
        padding: 20px;
    }
    .output-cards-list {
        max-height: 360px;
    }
}

/* Tablets */
@media (min-width: 768px) {
    .main-grid {
        grid-template-columns: 1fr 1fr;
        padding: 24px;
        gap: 24px;
    }
    .bottom-panels {
        grid-template-columns: 1fr 1fr 1fr;
    }
    .header-content {
        padding: 0 24px;
    }
}

/* Laptops */
@media (min-width: 1024px) {
    .main-grid {
        grid-template-columns: 380px 1fr;
        max-width: 1200px;
        margin: 0 auto;
        gap: 28px;
        padding: 28px;
    }
    .bottom-panels {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 28px 28px;
    }
}

/* Desktops */
@media (min-width: 1280px) {
    .main-grid {
        grid-template-columns: 420px 1fr;
        max-width: 1400px;
        gap: 32px;
        padding: 32px;
    }
    .bottom-panels {
        max-width: 1400px;
        padding: 0 32px 32px;
    }
}

/* Large desktops / 4K */
@media (min-width: 1536px) {
    .main-grid {
        max-width: 1600px;
        grid-template-columns: 460px 1fr;
    }
    .bottom-panels {
        max-width: 1600px;
    }
}

/* ═══ Mobile overrides (< 768px) ═══ */
@media (max-width: 767px) {
    .main-grid {
        grid-template-columns: 1fr;
        padding: 10px;
        gap: 12px;
    }

    .bottom-panels {
        grid-template-columns: 1fr;
        padding: 0 10px 10px;
    }

    /* Header */
    .app-header {
        padding: 8px 0;
    }
    .header-content {
        padding: 0 12px;
    }
    .header-title {
        font-size: 18px;
    }
    .header-logo {
        width: 28px;
        height: 28px;
        font-size: 14px;
    }
    .header-version {
        font-size: 10px;
        padding: 1px 6px;
    }

    /* Disclaimer */
    .disclaimer-banner {
        padding: 6px 12px;
        font-size: 11px;
    }

    /* Panels */
    .glass-panel {
        border-radius: 12px;
    }
    .panel-header {
        padding: 12px 14px;
    }
    .panel-title {
        font-size: 11px;
        letter-spacing: 1px;
    }
    .panel-body {
        padding: 14px;
    }

    /* Form */
    .form-group {
        margin-bottom: 12px;
    }
    .form-label {
        font-size: 11px;
        margin-bottom: 4px;
    }
    .form-input {
        padding: 9px 12px;
        font-size: 13px;
    }
    .form-select {
        padding: 9px 12px;
        font-size: 12px;
    }
    .form-row {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 6px;
    }

    /* Presets */
    .quick-presets {
        gap: 4px;
        margin-bottom: 12px;
    }
    .preset-btn {
        font-size: 11px;
        padding: 5px 9px;
    }

    /* Range slider */
    .range-group {
        gap: 8px;
    }
    .range-value {
        font-size: 13px;
        min-width: 40px;
        padding: 3px 8px;
    }

    /* Generate button */
    .btn-generate {
        padding: 12px 20px;
        font-size: 14px;
    }

    /* Output */
    .output-textarea {
        min-height: 150px;
        max-height: 250px;
        font-size: 11px;
        padding: 10px;
    }
    .output-actions {
        gap: 6px;
        margin-top: 10px;
    }
    .btn-action {
        padding: 7px 12px;
        font-size: 11px;
    }

    /* Stats */
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
        margin-top: 12px;
    }
    .stat-card {
        padding: 8px 10px;
    }
    .stat-label {
        font-size: 9px;
    }
    .stat-value {
        font-size: 14px;
    }

    /* Card preview */
    .card-preview-container {
        padding: 10px 0;
    }
    .card-3d {
        width: 280px;
        height: 176px;
    }
    .card-face {
        padding: 16px;
        border-radius: 12px;
    }
    .card-chip {
        width: 40px;
        height: 30px;
    }
    .card-brand-logo {
        font-size: 16px;
    }
    .card-number-display {
        font-size: 15px;
        letter-spacing: 2px;
        word-spacing: 4px;
    }
    .card-holder-name {
        font-size: 9px;
        letter-spacing: 1px;
    }
    .card-holder-label {
        font-size: 7px;
    }
    .card-expiry-value {
        font-size: 12px;
    }
    .card-expiry-label {
        font-size: 7px;
    }

    /* Tabs */
    .tab-bar {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        gap: 2px;
        padding: 3px;
    }
    .tab-bar::-webkit-scrollbar {
        display: none;
    }
    .tab-btn {
        padding: 8px 12px;
        font-size: 12px;
        gap: 4px;
    }
    .tab-panel-inner {
        padding: 14px;
    }

    /* Lookup */
    .lookup-grid {
        grid-template-columns: 1fr 1fr;
        gap: 6px;
    }
    .lookup-item {
        padding: 8px 10px;
    }
    .lookup-item-label {
        font-size: 9px;
    }
    .lookup-item-value {
        font-size: 12px;
    }

    /* History */
    .history-item {
        padding: 8px 10px;
    }
    .history-number {
        font-size: 12px;
    }
    .history-brand {
        font-size: 10px;
    }

    /* Validator */
    .validation-check {
        padding: 8px 0;
        gap: 8px;
    }
    .check-icon {
        width: 20px;
        height: 20px;
        font-size: 10px;
    }
    .check-label {
        font-size: 12px;
    }

    /* Toast */
    .toast-container {
        bottom: 12px;
        right: 12px;
        left: 12px;
    }
    .toast {
        padding: 10px 14px;
        font-size: 12px;
        min-width: unset;
        width: 100%;
    }

    /* Footer */
    .app-footer {
        padding: 16px 12px;
        font-size: 11px;
    }
}

/* ═══ Extra small phones (< 360px) ═══ */
@media (max-width: 359px) {
    .main-grid {
        padding: 6px;
        gap: 8px;
    }
    .header-title {
        font-size: 16px;
    }
    .header-left {
        gap: 8px;
    }
    .card-3d {
        width: 240px;
        height: 152px;
    }
    .card-face {
        padding: 12px;
    }
    .card-chip {
        width: 32px;
        height: 24px;
    }
    .card-number-display {
        font-size: 13px;
        letter-spacing: 1px;
    }
    .card-brand-logo {
        font-size: 14px;
    }
    .preset-btn {
        font-size: 10px;
        padding: 4px 7px;
    }
    .form-row {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 4px;
    }
    .form-input {
        font-size: 12px;
        padding: 8px 10px;
    }
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 4px;
    }
    .stat-value {
        font-size: 12px;
    }
    .tab-btn {
        font-size: 11px;
        padding: 6px 8px;
    }
}

/* ═══ Landscape phones ═══ */
@media (max-height: 500px) and (orientation: landscape) {
    .app-header {
        padding: 4px 0;
    }
    .disclaimer-banner {
        padding: 4px 12px;
        font-size: 10px;
    }
    .card-preview-container {
        padding: 6px 0;
    }
    .card-3d {
        width: 220px;
        height: 138px;
    }
    .card-face {
        padding: 10px;
    }
    .output-textarea {
        min-height: 100px;
        max-height: 200px;
    }
}