/**
 * MatterMind Main Stylesheet
 * Base styles, typography, layout, and navigation
 */

/* CSS Variables */
:root {
    --teal-primary: #008B8B;
    --teal-light: #20B2AA;
    --teal-dark: #006666;
    --white: #FFFFFF;
    --grey-light: #F5F5F5;
    --grey-medium: #CCCCCC;
    --grey-dark: #333333;
    --red-alert: #E74C3C;
    --yellow-warning: #F39C12;
    --green-success: #27AE60;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 8px rgba(0,0,0,0.15);
    --border-radius: 6px;
    --transition: all 0.2s ease-in-out;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    background-color: var(--grey-light);
    color: var(--grey-dark);
    line-height: 1.6;
    font-size: 14px;
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 15px;
    font-weight: 600;
    line-height: 1.3;
}

h1 { font-size: 28px; }
h2 { font-size: 24px; }
h3 { font-size: 20px; }
h4 { font-size: 18px; }
h5 { font-size: 16px; }
h6 { font-size: 14px; }

a {
    color: var(--teal-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--teal-dark);
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.container-narrow {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

/* Navigation Bar */
.navbar {
    background-color: var(--teal-primary);
    color: var(--white);
    padding: 15px 0;
    box-shadow: var(--shadow);
}

.navbar-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-collapse {
    display: flex;
    align-items: center;
    gap: 0;
    flex: 1;
}

.navbar-brand {
    font-family: 'DM Serif Display', Georgia, 'Times New Roman', serif;
    font-size: 28px;
    font-weight: 400;
    letter-spacing: -0.02em;
    color: var(--white);
    display: inline-flex;
    align-items: baseline;
    gap: 1px;
    line-height: 1;
}

.navbar-brand span {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.82em;
    font-weight: 700;
    color: var(--white);
}

.navbar-brand:hover {
    color: var(--white);
    opacity: 0.9;
}

.navbar-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hamburger-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin: -8px;
}

.hamburger-icon,
.hamburger-icon::before,
.hamburger-icon::after {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

.hamburger-icon {
    position: relative;
}

.hamburger-icon::before,
.hamburger-icon::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger-icon::before { top: -7px; }
.hamburger-icon::after { top: 7px; }

.hamburger-btn.open .hamburger-icon { background: transparent; }
.hamburger-btn.open .hamburger-icon::before { top: 0; transform: rotate(45deg); }
.hamburger-btn.open .hamburger-icon::after { top: 0; transform: rotate(-45deg); }

.navbar-menu {
    display: flex;
    gap: 20px;
    align-items: center;
}

.navbar-link {
    color: var(--white);
    padding: 8px 15px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.navbar-link:hover {
    background-color: var(--teal-dark);
    color: var(--white);
}

.navbar-link.active {
    background-color: var(--teal-dark);
}

/* Login/Register Page Styles */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-card {
    background: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow-hover);
    padding: 40px;
    width: 100%;
    max-width: 450px;
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-logo {
    font-family: 'DM Serif Display', Georgia, 'Times New Roman', serif;
    font-size: 42px;
    font-weight: 400;
    letter-spacing: -0.02em;
    color: #222;
    margin-bottom: 10px;
    line-height: 1;
}

.auth-logo span {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.82em;
    font-weight: 700;
    color: var(--teal-primary);
}

.auth-subtitle {
    color: #777;
    font-size: 14px;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--grey-light);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }

.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }

.p-1 { padding: 10px; }
.p-2 { padding: 20px; }
.p-3 { padding: 30px; }

.ml-1 { margin-left: 10px; }
.ml-2 { margin-left: 20px; }
.mr-1 { margin-right: 10px; }
.mr-2 { margin-right: 20px; }

.d-flex { display: flex; }
.flex-between { justify-content: space-between; }
.flex-center { justify-content: center; }
.align-center { align-items: center; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: 10px; }
.gap-2 { gap: 20px; }

.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.hide-mobile { }

@media (max-width: 768px) {
    .hide-mobile { display: none !important; }

    .table-responsive table th,
    .table-responsive table td {
        padding: 8px 10px;
        font-size: 13px;
        white-space: nowrap;
    }
}

.text-success { color: var(--green-success); }
.text-warning { color: var(--yellow-warning); }
.text-danger { color: var(--red-alert); }
.text-muted { color: #777; }

.bg-success { background-color: var(--green-success); }
.bg-warning { background-color: var(--yellow-warning); }
.bg-danger { background-color: var(--red-alert); }

/* List Styles */
ol, ul {
    padding-left: 20px;
}

ol li, ul li {
    margin-bottom: 8px;
}

/* Small Text */
small, .small {
    font-size: 12px;
}

/* Horizontal Rule */
hr {
    border: none;
    border-top: 1px solid var(--grey-medium);
    margin: 20px 0;
}

/* Code Blocks */
code {
    background-color: var(--grey-light);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    color: var(--teal-dark);
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--grey-light);
    border-top: 3px solid var(--teal-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Sync Button Spinners */
#sync-btn-spinner,
#sync-firm-btn-spinner {
    display: inline-block;
    animation: spin 1s linear infinite;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    .navbar-content {
        flex-direction: column;
        gap: 0;
    }

    .navbar-top {
        width: 100%;
    }

    .hamburger-btn {
        display: block;
    }

    .navbar-collapse {
        display: none;
        width: 100%;
        padding-top: 12px;
    }

    .navbar-collapse.open {
        display: block;
    }

    .navbar-menu {
        flex-direction: column;
        gap: 4px;
        align-items: stretch;
        width: 100%;
        padding-top: 8px;
    }

    .navbar-link {
        display: block;
        text-align: left;
        padding: 12px 15px;
    }

    .notification-bell-wrapper {
        padding: 8px 15px;
    }

    .feedback-pill {
        padding: 12px 15px !important;
        justify-content: flex-start;
    }

    .auth-card {
        padding: 30px 20px;
    }

    h1 { font-size: 24px; }
    h2 { font-size: 20px; }
    h3 { font-size: 18px; }
}

@media (max-width: 480px) {
    body {
        font-size: 13px;
    }

    .btn {
        padding: 8px 15px;
        font-size: 13px;
    }

    .auth-card {
        padding: 20px 15px;
    }
}

/* Feedback Pill Button */
.feedback-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--white);
    color: var(--teal-primary);
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    white-space: nowrap;
}

.feedback-pill:hover {
    background: var(--teal-light);
    color: var(--white);
}

.feedback-pill svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

/* Feedback Modal Overrides */
.feedback-modal .modal-content {
    max-width: 480px;
}

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

.feedback-modal label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 13px;
    color: var(--grey-dark);
}

.feedback-modal select,
.feedback-modal textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--grey-medium);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.2s;
    background: var(--white);
}

.feedback-modal select:focus,
.feedback-modal textarea:focus {
    outline: none;
    border-color: var(--teal-primary);
    box-shadow: 0 0 0 3px rgba(0, 139, 139, 0.1);
}

.feedback-modal textarea {
    resize: vertical;
    min-height: 120px;
}

.feedback-char-count {
    text-align: right;
    font-size: 12px;
    color: #999;
    margin-top: 4px;
}

.feedback-char-count.near-limit {
    color: var(--yellow-warning);
}

.feedback-char-count.at-limit {
    color: var(--red-alert);
}

.feedback-error {
    color: var(--red-alert);
    font-size: 13px;
    margin-top: 8px;
    display: none;
}

/* Feedback Toast Notification */
.feedback-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--green-success);
    color: var(--white);
    padding: 14px 24px;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    z-index: 2000;
    transform: translateY(100px);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.feedback-toast.visible {
    transform: translateY(0);
    opacity: 1;
}