:root {
    --base: #1a1a1a;
    --muted: #5f6368;
    --border: #e8eaed;
    --bg-light: #f8f9fa;
    --primary: #1a73e8;
    --primary-hover: #0d62d0;
    --danger: #d93025;
    --success: #34a853;
    --white: #ffffff;
    --shadow: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 12px 30px rgba(0,0,0,0.15);
    --transition: all 0.22s ease;
}

/* ——— THIN SCROLLBARS (WebKit-based browsers: Chrome, Edge, Safari) ——— */
/* For the whole page */
::-webkit-scrollbar {
    width: 6px;   /* Vertical scrollbar width */
    height: 6px;  /* Horizontal scrollbar height */
}

::-webkit-scrollbar-track {
    background: #f8fafc;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e0;
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: #a0aec0;
}

/* For all scrollable elements inside the page */
* {
    scrollbar-width: thin; /* Firefox */
    scrollbar-color: #cbd5e0 #f8fafc; /* thumb / track */
}

/* Optional: Slightly more visible on hover for better UX */
*:hover::-webkit-scrollbar-thumb {
    background: #a0aec0;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
    font-size: 15px;
}
body {
    font-family: 'Sora', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--base);
    min-height: 100vh;
    background: var(--white);
    padding-top: 80px;
}

/* ---------------- MODAL SCROLL FIX ---------------- */
.auth-modal {
    max-height: 90vh;
    overflow-y: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
    position: relative;
    padding: 24px;
}
.auth-modal::-webkit-scrollbar {
    display: none;
}

.close-auth {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 26px;
    cursor: pointer;
    color: var(--muted);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
    z-index: 10;
}
.close-auth:hover {
    background: var(--bg-light);
    color: var(--base);
}

/* ---------------- AUTH MODAL STYLES ---------------- */
.auth-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s;
}
.auth-backdrop.open {
    opacity: 1;
    visibility: visible;
}
.auth-modal {
    background: var(--white);
    border-radius: 16px;
    width: 92%;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
    transform: scale(0.96);
    transition: transform 0.35s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}
.auth-backdrop.open .auth-modal {
    transform: scale(1);
}
.auth-header {
    text-align: center;
    margin-bottom: 1.8rem;
}
.auth-header h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--base);
}
.auth-form .form-group {
    margin-bottom: 1.4rem;
}
.auth-form label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 14px;
    color: var(--base);
}
.auth-form input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: 'Sora', sans-serif;
    font-size: 15px;
    color: var(--base);
    transition: var(--transition);
}
.auth-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2);
}
.alert {
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 16px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
}
.alert-danger {
    background: #ffebee;
    color: var(--danger);
}
.alert-success {
    background: #e6f4ea;
    color: var(--success);
}
.auth-btn {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 8px;
    font-family: 'Sora', sans-serif;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    background: var(--primary);
    color: white;
}
.auth-btn:hover {
    background: var(--primary-hover);
}
.google-btn {
    width: 100%;
    padding: 12px;
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: 'Sora', sans-serif;
    font-size: 15px;
    font-weight: 600;
    color: var(--base);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 18px 0;
    transition: var(--transition);
}
.google-btn:hover {
    background: var(--bg-light);
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}
.divider {
    text-align: center;
    position: relative;
    margin: 22px 0;
    color: var(--muted);
    font-size: 14px;
}
.divider::before,
.divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background: var(--border);
}
.divider::before { left: 0; }
.divider::after { right: 0; }
.switch-form {
    text-align: center;
    margin-top: 16px;
    font-size: 14px;
    color: var(--muted);
}
.switch-form a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    margin-left: 4px;
}
.forgot-link {
    display: block;
    text-align: right;
    margin-top: 8px;
    font-size: 14px;
    color: var(--primary);
    text-decoration: none;
}
.forgot-link:hover {
    text-decoration: underline;
}

/* ---------------- HEADER / NAV ---------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 2.5rem;
    background: var(--white);
    z-index: 1000;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.logo {
    height: 53px;
    transition: opacity 0.2s;
}
.logo:hover {
    opacity: 0.92;
}
.nav-container {
    display: flex;
    align-items: center;
    gap: 2rem;
}
.nav-item {
    position: relative;
    font-weight: 500;
    font-size: 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-item > a,
.nav-item > span {
    text-decoration: none;
    color: #0C0E0E;
    padding: 8px 0;
    transition: var(--transition);
    display: inline-block;
}
.nav-item::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}
.nav-item:hover::after,
.nav-item:hover > a,
.nav-item:hover > span {
    color: var(--primary);
    width: 100%;
}
.dropdown-indicator {
    font-size: 10px;
    color: var(--muted);
    transition: color 0.2s;
}
.nav-item:hover .dropdown-indicator {
    color: var(--primary);
}
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    min-width: 210px;
    padding: 8px 0;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.25s, transform 0.25s;
    margin-top: 8px;
}
.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 20px;
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 8px solid var(--white);
}
.dropdown-menu a {
    display: block;
    padding: 10px 20px;
    color: var(--base);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
}
.dropdown-menu a:hover {
    background: var(--bg-light);
    color: var(--primary);
}
.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.user-dropdown {
    position: relative;
}
.user-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
}
.user-trigger:hover {
    background: var(--bg-light);
}
.user-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #e8f0fe;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0C0E0E;
    font-weight: 600;
    font-size: 14px;
}
.caret {
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid var(--muted);
    transition: var(--transition);
}
.user-dropdown:hover .caret,
.user-dropdown.active .caret {
    border-top-color: var(--primary);
}
.user-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    min-width: 190px;
    padding: 6px 0;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.25s, transform 0.25s;
    margin-top: 8px;
}
.user-menu::before {
    content: '';
    position: absolute;
    top: -8px;
    right: 20px;
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 8px solid var(--white);
}
.user-menu a {
    display: block;
    padding: 10px 20px;
    text-decoration: none;
    font-weight: 400;
    font-size: 14px;
    color: var(--base);
    transition: var(--transition);
}
.user-menu a:hover {
    background: var(--bg-light);
    color: var(--primary);
}
.user-menu a.logout {
    color: var(--danger);
}
.user-menu a.logout:hover {
    background: #ffebee;
    color: var(--danger);
}
.user-menu .btn {
    display: block;
    width: calc(100% - 40px);
    margin: 6px 20px;
    padding: 10px 16px;
    text-align: center;
    border-radius: 6px;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    transition: var(--transition);
}
.user-menu .login-btn {
    background: var(--primary);
    color: white;
}
.user-menu .signup-btn {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}
.user-menu .signup-btn:hover {
    background: #f0f7ff;
}
.user-dropdown:hover .user-menu,
.user-dropdown.active .user-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 34px;
    height: 26px;
    cursor: pointer;
    padding: 4px;
}
.menu-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background: var(--base);
    border-radius: 2px;
    transition: var(--transition);
}
.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--white);
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem 2.2rem;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.35s cubic-bezier(0.22, 0.61, 0.36, 1),
                transform 0.35s cubic-bezier(0.22, 0.61, 0.36, 1),
                visibility 0.35s;
}
.mobile-overlay.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.close-btn {
    align-self: flex-end;
    background: none;
    border: none;
    font-size: 32px;
    cursor: pointer;
    color: var(--base);
    padding: 0;
    margin-bottom: 1.8rem;
    line-height: 1;
    transition: var(--transition);
}
.close-btn:hover {
    color: var(--primary);
    transform: rotate(90deg);
}
.mobile-nav {
    list-style: none;
}
.mobile-nav > li {
    margin-bottom: 1.1rem;
    font-size: 15px;
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 6px;
}
.mobile-nav > li > a {
    text-decoration: none;
    color: var(--base);
    transition: var(--transition);
}
.mobile-nav > li > a:hover {
    color: var(--primary);
}
.mobile-dropdown-indicator {
    font-size: 10px;
    color: var(--muted);
}
.mobile-submenu {
    padding-left: 24px;
    margin-top: 8px;
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease, visibility 0.3s;
    overflow: hidden;
}
.mobile-submenu.open {
    max-height: 200px;
    opacity: 1;
    visibility: visible;
    margin-top: 12px;
}
.mobile-submenu a {
    display: block;
    font-size: 15px;
    font-weight: 500;
    color: var(--muted);
    margin-top: 9px;
    text-decoration: none;
    transition: var(--transition);
}
.mobile-submenu a:hover {
    color: var(--primary);
}
.mobile-user {
    margin-top: 1.8rem;
    padding-top: 1.2rem;
    border-top: 1px solid var(--border);
}
.mobile-user .email {
    display: block;
    margin-bottom: 12px;
    color: var(--muted);
    font-weight: 600;
    font-size: 15px;
}
.mobile-action-item {
    display: block;
    width: 100%;
    padding: 12px 16px;
    margin-top: 10px;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    transition: var(--transition);
    font-size: 15px;
    box-sizing: border-box;
}
.mobile-login {
    background: var(--primary);
    color: white;
}
.mobile-login:hover {
    background: var(--primary-hover);
}
.mobile-signup {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}
.mobile-signup:hover {
    background: #f0f7ff;
}
.mobile-logout {
    background: #ffebee;
    color: var(--danger);
}
.mobile-logout:hover {
    background: #ffdadf;
}
.contact-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}
.contact-modal-backdrop.open {
    opacity: 1;
    visibility: visible;
}
.contact-modal {
    background: var(--white);
    border-radius: 12px;
    width: 90%;
    max-width: 520px;
    padding: 2.2rem;
    box-shadow: var(--shadow-lg);
    transform: scale(0.95);
    transition: transform 0.3s ease;
}
.contact-modal-backdrop.open .contact-modal {
    transform: scale(1);
}
.contact-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}
.contact-modal h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--base);
}
.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--muted);
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}
.modal-close:hover {
    background: var(--bg-light);
    color: var(--base);
}
.contact-form .form-group {
    margin-bottom: 1.4rem;
}
.contact-form label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 14px;
    color: var(--base);
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: 'Sora', sans-serif;
    font-size: 15px;
    color: var(--base);
    transition: var(--transition);
}
.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.2);
}
.contact-form textarea {
    min-height: 120px;
    resize: vertical;
}
.contact-form button {
    width: 100%;
    padding: 13px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-family: 'Sora', sans-serif;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.contact-form button:hover {
    background: var(--primary-hover);
}

@media (max-width: 768px) {
    .nav-container,
    .user-dropdown {
        display: none;
    }
    .menu-toggle {
        display: flex;
    }
    .menu-toggle.open span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    .menu-toggle.open span:nth-child(2) {
        opacity: 0;
    }
    .menu-toggle.open span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    body {
        padding-top: 72px;
    }
    .header {
        padding: 0.8rem 1.2rem;
    }
    .logo {
        height: 50px;
    }
    .contact-modal,
    .auth-modal {
        padding: 1.8rem;
        margin: 0 16px;
    }
    .contact-modal h2,
    .auth-header h2 {
        font-size: 22px;
    }
}