/* ===========================
   Sign In Page Styles
   =========================== */

:root {
    --primary-color: #0066ff;
    --primary-dark: #0052cc;
    --primary-light: #e6f0ff;
    --secondary-color: #6366f1;
    --text-color: #1a202c;
    --text-light: #718096;
    --text-lighter: #a0aec0;
    --border-color: #cbd5e0;
    --border-light: #e2e8f0;
    --error-color: #e53e3e;
    --error-light: #fed7d7;
    --success-color: #38a169;
    --success-light: #c6f6d5;
    --warning-color: #ed8936;
    --bg-light: #f7fafc;
    --bg-lighter: #edf2f7;
    --bg-white: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body {
    width: 100%;
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    background: linear-gradient(135deg, #0066ff 0%, #6366f1 100%);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    min-height: 100vh;
    padding: 24px 16px;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 500px;
}

@media (max-width: 768px) {
    .container {
        max-width: 100%;
    }
}

.signin-wrapper {
    width: 100%;
}

.signin-card {
    background: var(--bg-white);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    padding: 32px;
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.signin-card h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.signin-card h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.signin-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-color);
    margin-top: 24px;
    margin-bottom: 16px;
}

.signin-card .subtitle {
    font-size: 15px;
    color: var(--text-light);
    margin-bottom: 32px;
    line-height: 1.5;
}

.signin-card p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 24px;
}

/* ===========================
   Form Styles
   =========================== */

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 8px;
    letter-spacing: 0.3px;
}

.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="text"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    font-size: 14px;
    border: 1.5px solid var(--border-light);
    border-radius: 10px;
    transition: var(--transition);
    background-color: var(--bg-light);
    color: var(--text-color);
    font-family: inherit;
}

.form-group input[type="email"]:focus,
.form-group input[type="password"]:focus,
.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: var(--bg-white);
    box-shadow: 0 0 0 3px var(--primary-light);
}

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

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
    font-size: 14px;
}

.remember-me {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: var(--text-color);
    gap: 8px;
    transition: var(--transition);
}

.remember-me:hover {
    color: var(--primary-color);
}

.remember-me input[type="checkbox"] {
    cursor: pointer;
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

.forgot-password {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.forgot-password:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ===========================
   Button Styles
   =========================== */

.btn, .btn-signin, button[type="submit"] {
    padding: 12px 20px;
    font-size: 15px;
    font-weight: 600;
    color: white;
    background-color: var(--primary-color);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
    text-align: center;
    text-decoration: none;
    letter-spacing: 0.3px;
}

.btn:hover, .btn-signin:hover, button[type="submit"]:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 8px 16px rgba(0, 102, 255, 0.3);
    transform: translateY(-2px);
}

.btn:active, .btn-signin:active, button[type="submit"]:active {
    transform: translateY(0);
}

.btn:disabled, .btn-signin:disabled, button[type="submit"]:disabled {
    background-color: var(--text-lighter);
    cursor: not-allowed;
    transform: none;
    opacity: 0.6;
}

.btn-signin {
    width: 100%;
    margin-bottom: 20px;
}

.btn-secondary {
    background-color: var(--bg-lighter);
    color: var(--text-color);
    border: 1.5px solid var(--border-light);
}

.btn-secondary:hover {
    background-color: var(--border-light);
    box-shadow: var(--shadow-md);
}

.btn-small {
    padding: 8px 14px;
    font-size: 13px;
}

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

.btn-danger:hover {
    background-color: #c53030;
    box-shadow: 0 8px 16px rgba(229, 62, 62, 0.3);
}

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

.btn-success:hover {
    background-color: #2f855a;
    box-shadow: 0 8px 16px rgba(56, 161, 105, 0.3);
}

.signup-link {
    text-align: center;
    font-size: 14px;
    color: var(--text-light);
}

.signup-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.signup-link a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ===========================
   Error & Success Messages
   =========================== */

.error-message-box {
    background-color: var(--error-light);
    color: var(--error-color);
    padding: 14px 16px;
    border-radius: 10px;
    margin-bottom: 24px;
    font-size: 14px;
    border-left: 4px solid var(--error-color);
    animation: slideDown 0.3s ease-out;
}

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

.form-group.error input {
    border-color: var(--error-color);
    background-color: var(--error-light);
}

.form-group.error .error-message {
    color: var(--error-color);
    font-size: 12px;
    margin-top: 6px;
    display: block;
    font-weight: 500;
}

.success-message {
    background-color: var(--success-light);
    color: var(--success-color);
    padding: 14px 16px;
    border-radius: 10px;
    margin-bottom: 24px;
    font-size: 14px;
    border-left: 4px solid var(--success-color);
    animation: slideDown 0.3s ease-out;
}

.warning-message {
    background-color: #feebc8;
    color: var(--warning-color);
    padding: 14px 16px;
    border-radius: 10px;
    margin-bottom: 24px;
    font-size: 14px;
    border-left: 4px solid var(--warning-color);
}

/* ===========================
   Table Styles
   =========================== */

table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
    box-shadow: var(--shadow-sm);
    border-radius: 10px;
    overflow: hidden;
}

thead {
    background-color: var(--bg-lighter);
}

th {
    padding: 14px 16px;
    text-align: left;
    font-weight: 700;
    color: var(--text-color);
    border-bottom: 2px solid var(--border-light);
    letter-spacing: 0.3px;
}

td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-light);
}

tbody tr {
    transition: var(--transition);
}

tbody tr:hover {
    background-color: var(--bg-light);
}

tbody tr:last-child td {
    border-bottom: none;
}

/* ===========================
   Card/Section Styles
   =========================== */

.card, .section {
    background-color: var(--bg-white);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-color);
}

.section {
    box-shadow: none;
    border: 1.5px solid var(--border-light);
}

.card-header {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1.5px solid var(--border-light);
}

.card-header h3 {
    margin: 0;
    color: var(--text-color);
}

/* ===========================
   Stats Container
   =========================== */

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
    margin-top: 20px;
}

.stat {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg-lighter) 100%);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
    cursor: pointer;
}

.stat:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: var(--primary-color);
}

.stat-label {
    font-size: 12px;
    color: var(--text-light);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

/* ===========================
   Responsive Design
   =========================== */

@media (max-width: 768px) {
    .signin-card {
        padding: 32px;
    }

    .signin-card h1 {
        font-size: 28px;
    }

    .signin-card h2 {
        font-size: 22px;
    }

    .form-group input[type="email"],
    .form-group input[type="password"],
    .form-group input[type="text"],
    .form-group input[type="number"],
    .form-group select,
    .form-group textarea {
        padding: 11px 13px;
        font-size: 16px;
    }

    .btn, .btn-signin, button[type="submit"] {
        padding: 11px 18px;
        font-size: 14px;
    }

    .stats {
        grid-template-columns: repeat(2, 1fr);
    }

    table {
        font-size: 13px;
    }

    th, td {
        padding: 12px 12px;
    }

    .stat-value {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 12px;
        align-items: flex-start;
    }

    .signin-card {
        padding: 16px;
        border-radius: 12px;
        margin-bottom: 24px;
    }

    .signin-card h1 {
        font-size: 20px;
    }

    .signin-card h2 {
        font-size: 18px;
    }

    .signin-card h3 {
        font-size: 16px;
        margin-top: 18px;
        margin-bottom: 12px;
    }

    .signin-card .subtitle {
        font-size: 13px;
        margin-bottom: 20px;
    }

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

    .form-group label {
        font-size: 13px;
    }

    .form-group input[type="email"],
    .form-group input[type="password"],
    .form-group input[type="text"],
    .form-group input[type="number"],
    .form-group select,
    .form-group textarea {
        font-size: 16px;
        padding: 10px 12px;
    }

    .btn, .btn-signin, button[type="submit"] {
        width: 100%;
        padding: 12px 12px;
        font-size: 14px;
        margin-bottom: 8px;
    }

    .btn.btn-success, .btn.btn-danger {
        width: auto;
    }

    .stats {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .stat {
        padding: 14px;
    }

    .stat-label {
        font-size: 11px;
    }

    .stat-value {
        font-size: 18px;
        margin-top: 6px;
    }

    table {
        font-size: 12px;
        display: block;
        overflow-x: auto;
    }

    thead {
        display: none;
    }

    tbody, tr, td {
        display: block;
        width: 100%;
    }

    tr {
        margin-bottom: 12px;
        border: 1px solid var(--border-light);
        border-radius: 6px;
        overflow: hidden;
    }

    td {
        text-align: right;
        padding-left: 45%;
        padding-right: 12px;
        padding-top: 10px;
        padding-bottom: 10px;
        position: relative;
        border-bottom: none;
        display: block;
    }

    td::before {
        content: attr(data-label);
        position: absolute;
        left: 12px;
        top: 10px;
        font-weight: 600;
        color: var(--text-color);
        width: 40%;
    }

    .card, .section {
        padding: 16px;
    }

    .form-group textarea {
        min-height: 80px;
    }

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

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

    .form-actions button {
        width: 100%;
        margin-bottom: 0;
    }

    .actions .btn {
        padding: 6px 8px;
        font-size: 11px;
    }

    .actions {
        gap: 4px;
    }
}

.nav-right { margin-left: auto; }

/* ===========================
   Header/Navigation
   =========================== */

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-light);
    flex-wrap: wrap;
    gap: 16px;
}

.header-left {
    flex: 1;
    min-width: 200px;
}

.header-left h1 {
    margin: 0;
    font-size: 28px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.user-info {
    text-align: right;
    min-width: auto;
}

.user-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 2px;
    word-break: break-word;
}

.user-role {
    font-size: 11px;
    color: var(--text-light);
    text-transform: capitalize;
    background-color: var(--bg-lighter);
    padding: 4px 8px;
    border-radius: 6px;
    display: inline-block;
    white-space: nowrap;
}

.logout-btn {
    background-color: var(--error-color);
    color: white;
    padding: 8px 12px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
    display: inline-block;
}

.logout-btn:hover {
    background-color: #c53030;
    box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        align-items: flex-start;
        margin-bottom: 24px;
        padding-bottom: 16px;
    }

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

    .header-right {
        width: 100%;
        justify-content: space-between;
    }

    .user-info {
        flex: 1;
    }
}

@media (max-width: 480px) {
    .header {
        flex-direction: column;
        align-items: flex-start;
        margin-bottom: 20px;
        padding-bottom: 16px;
    }

    .header-left h1 {
        font-size: 20px;
        margin-bottom: 12px;
    }

    .header-right {
        width: 100%;
        flex-direction: column;
        gap: 8px;
        align-items: stretch;
    }

    .user-info {
        text-align: left;
        padding-bottom: 8px;
        border-bottom: 1px solid var(--border-light);
    }

    .user-name {
        font-size: 13px;
        margin-bottom: 2px;
    }

    .user-role {
        font-size: 11px;
    }

    .logout-btn {
        width: 100%;
        text-align: center;
        padding: 10px 12px;
        font-size: 14px;
    }
}

/* ===========================
   Form Layout
   =========================== */

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

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

@media (max-width: 480px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    justify-content: flex-end;
}

@media (max-width: 480px) {
    .form-actions {
        flex-direction: column-reverse;
        justify-content: stretch;
    }

    .form-actions button {
        width: 100%;
    }
}

/* ===========================
   Action Buttons
   =========================== */

.actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.actions .btn {
    margin: 0;
    padding: 8px 12px;
    font-size: 12px;
    white-space: nowrap;
}

/* ===========================
   Content Grid
   =========================== */

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.content-full {
    grid-column: 1 / -1;
}

/* ===========================
   Empty States
   =========================== */

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-light);
}

.empty-state h3 {
    margin-top: 0;
}

.empty-state p {
    margin-bottom: 20px;
}

.nav-right { margin-left:auto; }