/* vαitasense Web Platform - Styling */

:root {
    --color-primary: #1e3a5f;
    --color-dark-bg: #0a1929;
    --color-white: #ffffff;
    --color-text: #e0e0e0;
    --color-text-light: #b0b0b0;

    /* Pastel accent colors */
    --color-pastel-blue: #b0c4de;
    --color-pastel-orange: #f4a460;
    --color-pastel-red: #ffa1d6;
    --color-pastel-coral: #ffc0d0;

    /* Status colors */
    --color-success: #66bb6a;
    --color-warning: #ffa726;
    --color-error: #ef5350;
    --color-info: #42a5f5;
}

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

html, body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)), url('starry_night_image.png') center/cover no-repeat fixed;
    background-color: var(--color-dark-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background-color: var(--color-primary);
    padding: 20px;
    border-bottom: 3px solid var(--color-pastel-orange);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.title {
    font-size: 28px;
    font-weight: bold;
    color: var(--color-white);
    letter-spacing: 0.02em;
    margin: 0;
}

.title .alpha {
    color: var(--color-pastel-red);
}

.title .letter-i {
    color: var(--color-pastel-blue);
}

.title .copyright {
    display: inline;
    font-size: 0.85em;
    opacity: 1;
    margin-left: 4px;
    color: var(--color-white);
}

.header-user {
    display: flex;
    align-items: center;
    gap: 16px;
}

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

.user-info strong {
    color: var(--color-pastel-blue);
}

/* Container */
.container {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    width: 100%;
}

/* Landing Section */
.landing-section {
    text-align: center;
    margin-bottom: 60px;
}

.landing-section h2 {
    font-size: 32px;
    margin-bottom: 12px;
    color: var(--color-white);
}

.landing-section > p {
    font-size: 16px;
    color: var(--color-text-light);
    margin-bottom: 40px;
}

/* Features Grid */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.feature-box {
    background-color: rgba(30, 58, 95, 0.4);
    border: 1px solid var(--color-pastel-blue);
    border-radius: 8px;
    padding: 24px;
    transition: all 0.3s ease;
}

.feature-box:hover {
    background-color: rgba(30, 58, 95, 0.6);
    border-color: var(--color-pastel-orange);
    transform: translateY(-4px);
}

.feature-box h3 {
    color: var(--color-pastel-blue);
    margin-bottom: 8px;
    font-size: 16px;
}

.feature-box p {
    color: var(--color-text-light);
    font-size: 14px;
}

/* Auth Buttons */
.auth-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-pastel-orange);
    color: #1a237e;
}

.btn-primary:hover {
    background-color: #f59a5a;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(244, 164, 96, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-pastel-blue);
    border: 2px solid var(--color-pastel-blue);
}

.btn-secondary:hover {
    background-color: rgba(176, 196, 222, 0.1);
    border-color: var(--color-pastel-orange);
    color: var(--color-pastel-orange);
}

.btn-accent {
    background-color: var(--color-pastel-blue);
    color: #1a237e;
}

.btn-accent:hover {
    background-color: #c0d4e8;
}

.btn-small {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-block {
    width: 100%;
}

/* Info Section */
.info-section {
    background-color: rgba(30, 58, 95, 0.3);
    border-left: 4px solid var(--color-pastel-coral);
    padding: 24px;
    border-radius: 6px;
    margin-top: 40px;
}

.info-section h3 {
    color: var(--color-pastel-blue);
    margin-bottom: 16px;
    font-size: 18px;
}

.info-section ol {
    padding-left: 24px;
}

.info-section li {
    margin-bottom: 12px;
    color: var(--color-text-light);
}

.info-section strong {
    color: var(--color-white);
}

/* Auth Form Container */
.auth-form-container {
    background-color: rgba(30, 58, 95, 0.5);
    border: 1px solid var(--color-pastel-blue);
    border-radius: 8px;
    padding: 32px;
    max-width: 400px;
    margin: 0 auto;
    margin-top: 40px;
}

.auth-form-container h2 {
    color: var(--color-white);
    margin-bottom: 24px;
    font-size: 24px;
    text-align: center;
}

/* Form */
.auth-form {
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--color-pastel-blue);
    font-weight: 600;
    font-size: 13px;
}

.form-group input {
    width: 100%;
    padding: 10px 12px;
    background-color: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--color-pastel-blue);
    border-radius: 4px;
    color: var(--color-white);
    font-size: 14px;
    transition: border-color 0.3s;
}

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

.form-group input:focus {
    outline: none;
    border-color: var(--color-pastel-orange);
    background-color: rgba(0, 0, 0, 0.5);
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 14px;
    border-left: 4px solid;
}

.alert-error {
    background-color: rgba(239, 83, 80, 0.1);
    border-color: var(--color-error);
    color: #ff7575;
}

.alert-success {
    background-color: rgba(102, 187, 106, 0.1);
    border-color: var(--color-success);
    color: #81c784;
}

.alert-info {
    background-color: rgba(66, 165, 245, 0.1);
    border-color: var(--color-info);
    color: #64b5f6;
}

/* Auth Footer */
.auth-footer {
    text-align: center;
    color: var(--color-text-light);
    font-size: 13px;
    padding-top: 12px;
    border-top: 1px solid rgba(176, 196, 222, 0.2);
}

.auth-footer a {
    color: var(--color-pastel-blue);
    text-decoration: none;
    font-weight: 600;
}

.auth-footer a:hover {
    color: var(--color-pastel-orange);
}

/* Dashboard */
.dashboard-header {
    margin-bottom: 32px;
}

.dashboard-header h2 {
    font-size: 28px;
    color: var(--color-white);
    margin-bottom: 8px;
}

.subtitle {
    color: var(--color-text-light);
    font-size: 14px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    background-color: rgba(30, 58, 95, 0.3);
    border-radius: 8px;
    border: 1px dashed var(--color-pastel-blue);
}

.empty-state h3 {
    color: var(--color-white);
    margin-bottom: 12px;
    font-size: 20px;
}

.empty-state p {
    color: var(--color-text-light);
}

/* Sessions Table */
.sessions-table {
    background-color: rgba(30, 58, 95, 0.3);
    border-radius: 8px;
    border: 1px solid var(--color-pastel-blue);
    overflow: hidden;
    margin-bottom: 32px;
}

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

.sessions-table thead {
    background-color: rgba(30, 58, 95, 0.6);
    border-bottom: 2px solid var(--color-pastel-orange);
}

.sessions-table th {
    padding: 16px;
    text-align: left;
    color: var(--color-pastel-blue);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sessions-table td {
    padding: 16px;
    border-bottom: 1px solid rgba(176, 196, 222, 0.1);
    color: var(--color-text);
    font-size: 14px;
}

.sessions-table tbody tr:hover {
    background-color: rgba(30, 58, 95, 0.4);
}

.timestamp {
    color: var(--color-pastel-blue);
    font-weight: 500;
}

.session-id code {
    background-color: rgba(0, 0, 0, 0.3);
    padding: 2px 6px;
    border-radius: 3px;
    color: var(--color-pastel-orange);
    font-family: 'Courier New', monospace;
    font-size: 12px;
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-pending {
    background-color: rgba(255, 167, 38, 0.2);
    color: var(--color-pastel-orange);
    border: 1px solid var(--color-pastel-orange);
}

.status-processing {
    background-color: rgba(66, 165, 245, 0.2);
    color: var(--color-info);
    border: 1px solid var(--color-info);
}

.status-completed {
    background-color: rgba(102, 187, 106, 0.2);
    color: var(--color-success);
    border: 1px solid var(--color-success);
}

.status-failed {
    background-color: rgba(239, 83, 80, 0.2);
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

.action {
    text-align: right;
}

.text-muted {
    color: var(--color-text-light);
}

/* Upload Section */
.upload-section {
    background-color: rgba(30, 58, 95, 0.3);
    border: 1px solid var(--color-pastel-blue);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 32px;
}

.upload-section h3 {
    color: var(--color-white);
    margin-bottom: 16px;
    font-size: 18px;
}

.upload-form-container {
    max-width: 500px;
}

.form-hint {
    font-size: 12px;
    color: var(--color-text-light);
    margin-top: 4px;
    margin-bottom: 0;
}

.form-group input[type="file"] {
    cursor: pointer;
}

/* Info Box */
.info-box {
    background-color: rgba(30, 58, 95, 0.3);
    border-left: 4px solid var(--color-pastel-red);
    padding: 24px;
    border-radius: 6px;
    margin-top: 32px;
}

.info-box h3 {
    color: var(--color-pastel-blue);
    margin-bottom: 16px;
    font-size: 16px;
}

.info-box ul {
    list-style: none;
}

.info-box li {
    margin-bottom: 12px;
    color: var(--color-text-light);
    padding-left: 20px;
    position: relative;
}

.info-box li:before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--color-pastel-orange);
}

.info-box strong {
    color: var(--color-white);
}

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    text-align: center;
    padding: 20px;
    margin-top: auto;
    border-top: 1px solid rgba(176, 196, 222, 0.2);
}

.footer p {
    margin: 0;
    font-size: 12px;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 20px 12px;
    }

    .header-content {
        flex-direction: column;
        gap: 12px;
    }

    .title {
        font-size: 24px;
    }

    .header-user {
        justify-content: center;
    }

    .landing-section h2 {
        font-size: 24px;
    }

    .auth-buttons {
        flex-direction: column;
    }

    .auth-form-container {
        padding: 24px;
        max-width: 100%;
    }

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

    .sessions-table {
        font-size: 12px;
    }

    .sessions-table th,
    .sessions-table td {
        padding: 12px;
    }

    .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 20px;
    }

    .landing-section h2 {
        font-size: 20px;
    }

    .landing-section > p {
        font-size: 14px;
    }

    .auth-form-container {
        padding: 16px;
    }

    .sessions-table {
        overflow-x: auto;
    }
}