/*
 * Secure Cloud Storage - Encrypted File Storage System
 * Copyright (c) 2025 Nyxor Studios. All rights reserved.
 */

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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border: #334155;
    --shadow: rgba(0, 0, 0, 0.3);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Inter', sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.auth-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-card {
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 20px 60px var(--shadow);
    max-width: 420px;
    width: 100%;
    border: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 8px;
}

.logo svg {
    color: var(--primary);
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 0.95rem;
}

.auth-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    background: var(--bg-primary);
    padding: 4px;
    border-radius: 8px;
}

.tab {
    flex: 1;
    padding: 10px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.tab.active {
    background: var(--primary);
    color: white;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.auth-form.hidden {
    display: none;
}

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

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input {
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group small {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.auth-footer {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    text-align: center;
}

.auth-footer p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.main-container {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.main-container.hidden {
    display: none;
}

.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
}

.nav-brand svg {
    color: var(--primary);
}

.nav-actions {
    display: flex;
    gap: 12px;
}

.nav-btn {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
}

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

.content {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 32px;
}

.upload-zone {
    background: var(--bg-secondary);
    border: 2px dashed var(--border);
    border-radius: 16px;
    padding: 60px 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    margin-bottom: 40px;
}

.upload-zone:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.upload-zone.drag-over {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    transform: scale(1.02);
}

.upload-icon {
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.upload-zone h2 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.upload-zone p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.password-toggle {
    margin: 16px 0;
}

.password-toggle label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text-secondary);
}

.password-input {
    max-width: 300px;
    margin: 16px auto 0;
    padding: 10px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
}

.password-input.hidden {
    display: none;
}

.storage-info {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
}

.storage-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 12px;
}

.storage-used {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
    transition: width 0.3s ease;
}

.storage-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
    margin: 0;
}

.files-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.files-header h3 {
    font-size: 1.5rem;
}

.files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.file-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.2s;
}

.file-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--shadow);
}

.file-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    color: var(--primary);
}

.file-name {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 8px;
    word-break: break-word;
}

.file-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 16px;
}

.file-meta-item {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.file-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.file-badge.protected {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.file-badge.public {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.file-actions {
    display: flex;
    gap: 8px;
}

.file-actions .btn {
    flex: 1;
    font-size: 0.875rem;
    padding: 8px 16px;
}

.loading {
    text-align: center;
    padding: 60px;
    color: var(--text-secondary);
    font-style: italic;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: 16px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow: auto;
    border: 1px solid var(--border);
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 1.5rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.api-key-display {
    display: flex;
    gap: 12px;
    align-items: center;
    margin: 16px 0 24px;
}

.api-key-display code {
    flex: 1;
    background: var(--bg-primary);
    padding: 12px 16px;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--primary-light);
    word-break: break-all;
}

.api-docs {
    margin-top: 24px;
}

.api-docs h4 {
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.api-docs pre {
    background: var(--bg-primary);
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    border: 1px solid var(--border);
}

.api-docs code {
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 20px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.hidden {
    display: none !important;
}

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

    .content {
        padding: 16px;
    }

    .files-grid {
        grid-template-columns: 1fr;
    }

    .auth-card {
        padding: 24px;
    }

    .upload-zone {
        padding: 40px 20px;
    }
}