@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --primary-color: #05b9be;
    --primary-hover: #06d4db;
    --secondary-bg: #ebebeb;
    --text-color: #1f1f1f;
    --text-muted: #525252;
    --background-color: #f5f5f5;
    --card-bg: #fff;
    --border-color: #d6d6d6;
    --error-color: #92241f;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-color);
}

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

h1 {
    font-size: 32px;
    color: var(--text-color);
    font-weight: 600;
}

h2 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-color);
}

.card {
    background: var(--card-bg);
    border-radius: 32px;
    padding: 40px;
    margin-bottom: 32px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

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

.card-header h2 {
    margin-bottom: 0;
}

/* Search Box */
.search-box {
    flex: 1;
    margin: 0 20px;
}

.search-box input {
    width: 100%;
    padding: 10px 16px;
    border-radius: 12px;
    border: 2px solid var(--background-color);
    background-color: var(--background-color);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: all 0.2s ease-in-out;
}

.search-box input:focus {
    border-color: var(--primary-color);
    background-color: #fff;
}

/* Upload Box */
.upload-box {
    border: 2px dashed var(--border-color);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    margin-bottom: 24px;
    background-color: var(--background-color);
}

.upload-box:hover,
.upload-box.drag-over {
    border-color: var(--primary-color);
    background-color: rgba(5, 185, 190, 0.05);
}

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

.upload-box p {
    color: var(--text-muted);
    font-weight: 500;
}

.upload-box p span {
    color: var(--primary-color);
    text-decoration: underline;
}

.file-preview {
    margin-top: 15px;
    font-weight: 600;
    color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    border: none;
    outline: none;
    text-decoration: none;
}

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

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

.btn.primary:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

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

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

.btn.small {
    padding: 8px 16px;
    font-size: 14px;
}

.btn.download {
    background-color: rgba(5, 185, 190, 0.1);
    color: var(--primary-color);
}

.btn.download:hover {
    background-color: rgba(5, 185, 190, 0.2);
}

/* Table */
.file-list-container {
    overflow-x: auto;
}

.file-table {
    width: 100%;
    border-collapse: collapse;
}

.file-table th {
    text-align: left;
    padding: 12px 0;
    border-bottom: 2px solid var(--background-color);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 14px;
}

.file-table td {
    padding: 16px 0;
    border-bottom: 1px solid var(--background-color);
    font-weight: 500;
}

.empty-state {
    text-align: center;
    padding: 40px 0;
    color: var(--text-muted);
}

.hidden {
    display: none !important;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    padding: 16px 32px;
    border-radius: 12px;
    background: var(--text-color);
    color: #fff;
    font-weight: 600;
    z-index: 1000;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    animation: slideUp 0.3s ease-out;
}

/* Auth Overlay */
.auth-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--background-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.auth-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 32px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    text-align: center;
    width: 100%;
    max-width: 400px;
}

.auth-card h2 {
    font-size: 18px;
    margin-bottom: 24px;
    color: var(--text-muted);
}

.auth-card input {
    width: 100%;
    padding: 16px;
    border-radius: 12px;
    border: 2px solid var(--secondary-bg);
    margin-bottom: 20px;
    font-size: 24px;
    text-align: center;
    letter-spacing: 8px;
    outline: none;
    transition: border-color 0.2s;
}

.auth-card input:focus {
    border-color: var(--primary-color);
}

.toast.error {
    background-color: var(--error-color);
}

@keyframes slideUp {
    from {
        bottom: 0;
        opacity: 0;
    }

    to {
        bottom: 40px;
        opacity: 1;
    }
}

footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 20px;
}

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

    .card {
        padding: 24px;
    }

    h1 {
        font-size: 24px;
    }
}