:root {
    --primary: #8B5CF6;
    --primary-dark: #7C3AED;
    --primary-light: #A78BFA;
    --primary-transparent: rgba(139, 92, 246, 0.1);
    --bg-dark: #0F0F1B;
    --bg-darker: #080811;
    --bg-card: rgba(30, 30, 46, 0.7);
    --text-light: #F3F4F6;
    --text-lighter: #FFFFFF;
    --accent: #10B981;
    --header-bg: rgba(15, 15, 27, 0.85);
}

[data-theme="light"] {
    --bg-dark: #FFFFFF;
    --bg-darker: #F8F9FA;
    --bg-card: rgba(255, 255, 255, 0.9);
    --text-light: #333333;
    --text-lighter: #000000;
    --accent: #10B981;
    --header-bg: rgba(255, 255, 255, 0.9);
}

[data-theme="light"] .form-control {
    background-color: transparent;
}

[data-theme="light"] .form-control:focus {
    background-color: transparent;
    box-shadow: 0 0 0 0.2rem rgba(0, 0, 0, 0.25);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-darker);
    color: var(--text-light);
    overflow-x: hidden;
    min-height: 100vh;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(139, 92, 246, 0.1) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.07) 0%, transparent 25%);
}

#chat-messages::-webkit-scrollbar {
    background-color: transparent;
}

#chat-messages:-webkit-scrollbar-track {
    background-color: transparent;
}

#chat-messages::-webkit-scrollbar-thumb {
    background-color: #A78BFA;
    border-radius: 10px;
}

#chat-messages::-webkit-scrollbar-thumb:hover {
    background-color: #A78BFA;
}

.table-responsive::-webkit-scrollbar {
    background-color: transparent;
}

.table-responsive::-webkit-scrollbar-track {
    background-color: transparent;
}

.table-responsive::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}

.table-responsive::-webkit-scrollbar-thumb:hover {
    background-color: rgba(0, 0, 0, 0.4);
}

.table-responsive {
    overflow-x: auto;
    max-width: 100%;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-light) transparent;
}

.table-responsive::-webkit-scrollbar {
    height: 4px;
    background: transparent;
}

.table-responsive::-webkit-scrollbar-track {
    background: transparent;
    margin: 0 2px;
}

.table-responsive::-webkit-scrollbar-thumb {
    background: var(--primary-light);
    border-radius: 2px;
    transition: background 0.2s ease;
}

.table-responsive::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

.chat-message {
    margin-bottom: 10px;
    padding: 8px 12px;
    border-radius: 18px;
    max-width: 80%;
    word-wrap: break-word;
}

.user-message {
    background-color: var(--primary-light);
    color: white;
    margin-left: auto;
    text-align: right;
}

.bot-message {
    background-color: #F8F9FA;
    color: #333;
    margin-right: auto;
    text-align: left;
}

#chat-messages::-webkit-scrollbar {
    width: 4px;
}

#chat-messages::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 1px;
}

.sticky-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--primary-transparent);
    padding: 0.8rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.logo-icon {
    font-size: 1.8rem;
    color: var(--primary);
    text-shadow: 0 0 15px var(--primary);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-lighter);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.nav-menu {
    display: flex;
    gap: 1.8rem;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.nav-link:hover {
    color: var(--primary);
    background-color: var(--primary-transparent);
    text-shadow: 0 0 10px var(--primary);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    background-color: var(--primary-transparent);
}

.theme-toggle-btn {
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    background-color: var(--primary-transparent);
    margin-left: 0.5rem;
}

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

/* Main content */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.section-title {
    font-size: 2.3rem;
    text-align: center;
    margin-bottom: 3.5rem;
    color: var(--text-lighter);
    position: relative;
    text-shadow: 0 0 15px rgba(139, 92, 246, 0.5);
}

.section-title:after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary);
    border-radius: 4px;
    box-shadow: 0 0 15px var(--primary);
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--primary-transparent);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
    border-color: var(--primary);
}

/* Forms */
.form-control {
    background-color: var(--bg-card);
    border: 1px solid var(--primary-transparent);
    border-radius: 12px;
    color: var(--text-light);
    padding: 0.8rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(139, 92, 246, 0.25);
    background-color: rgba(35, 35, 55, 0.8);
}

select.form-control {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%23F3F4F6' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-control::placeholder {
    color: rgba(243, 244, 246, 0.6);
}

textarea.form-control {
    resize: none;
}

.form-label {
    color: var(--text-light);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    background-color: var(--primary);
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    box-shadow: 0 5px 20px rgba(139, 92, 246, 0.4);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.6);
}

.btn-outline-secondary {
    background-color: transparent;
    border: 1px solid var(--primary-transparent);
    color: var(--text-light);
}

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

.feature-text {
    color: var(--text-light);
    opacity: 0.8;
    line-height: 1.5;
    transition: color 0.3s ease, opacity 0.3s ease;
}

/* Alerts */
.alert {
    border-radius: 12px;
    border: 1px solid;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    border-color: var(--accent);
    color: var(--accent);
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: #EF4444;
    color: #EF4444;
}

.btn-close {
    width: 1em;
    height: 1em;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M.293.293a1 1 0 011.414 0L8 6.586 14.293.293a1 1 0 111.414 1.414L9.414 8l6.293 6.293a1 1 0 01-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 01-1.414-1.414L6.586 8 .293 1.707a1 1 0 010-1.414z'/%3e%3c/svg%3e");
    background-size: 1em;
    background-repeat: no-repeat;
    background-position: center;
    border: 0;
    filter: invert(1);
    font-size: 1.2rem;
    cursor: pointer;
}

[data-theme="light"] .btn-close {
    filter: none;
}

/* Tables */
.table {
    color: var(--text-light);
    border-radius: 12px;
    overflow: hidden;
}

.table thead th {
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 1rem;
}

.table tbody td {
    border-color: var(--primary-transparent);
    padding: 1rem;
}

.table tbody tr:hover {
    background-color: rgba(139, 92, 246, 0.05);
}

/* Progress bars */
.progress {
    background-color: var(--bg-card);
    border-radius: 10px;
    height: 20px;
}

.progress-bar {
    background-color: var(--primary);
    color: var(--text-lighter);
    transition: width 1s ease-in-out;
}

/* Charts */
.chart-container {
    position: relative;
    height: 400px;
    background: var(--bg-card);
    border-radius: 12px;
    padding: 1rem;
    margin: 1rem 0;
}

/* Balance colors */
.balance-positive {
    color: var(--accent);
    font-weight: bold;
}

.balance-negative {
    color: #EF4444;
    font-weight: bold;
}

/* Footer */
footer {
    background-color: var(--header-bg);
    padding: 2rem;
    text-align: center;
    margin-top: 4rem;
    border-top: 1px solid var(--primary-transparent);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.footer-text {
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.card {
    animation: fadeInUp 0.6s ease-out;
}

.alert {
    animation: slideIn 0.5s ease-out;
}

.chart-container {
    animation: zoomIn 0.8s ease-out;
}

/* Mobile styles */
@media (max-width: 768px) {
    .sticky-header {
        padding: 0.8rem 1rem;
        position: sticky !important;
        top: 0 !important;
        z-index: 1000 !important;
    }

    .mobile-menu-btn {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }

    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background-color: var(--header-bg);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1.2rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        border-bottom: 1px solid var(--primary-transparent);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
        background-color: var(--header-bg);
    }

    .mobile-menu-btn {
        display: block;
    }

    .container {
        padding: 2rem 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .card {
        padding: 1.5rem 1rem;
    }

    .table-responsive {
        font-size: 0.9rem;
    }

    /* Chat window responsive */
    #chat-window {
        width: 90vw !important;
        height: 70vh !important;
        right: 5vw !important;
        bottom: 80px !important;
    }

    /* Grid adjustments */
    .dashboard-grid {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
    }

    .analytics-flex {
        flex-direction: column !important;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem 0.5rem;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 2rem;
    }

    .card {
        padding: 1rem 0.5rem;
        margin-bottom: 1rem;
    }

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }

    .form-control {
        padding: 0.6rem 0.8rem;
        font-size: 0.9rem;
    }

    .table-responsive {
        font-size: 0.8rem;
    }

    .table th, .table td {
        padding: 0.5rem;
    }

    .logo-text {
        font-size: 1.2rem;
    }

    .nav-link {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }

    /* Chat button smaller */
    #chat-button {
        width: 50px !important;
        height: 50px !important;
        bottom: 15px !important;
        right: 15px !important;
    }

    #chat-window {
        width: 95vw !important;
        height: 75vh !important;
        right: 2.5vw !important;
        bottom: 70px !important;
    }

    .chat-message {
        font-size: 0.9rem;
        padding: 6px 10px;
    }

    #chat-input {
        padding: 8px;
        font-size: 0.9rem;
    }
}

::-webkit-scrollbar {
    background-color: transparent;
}

::-webkit-scrollbar-track {
    background-color: transparent;
}

::-webkit-scrollbar-thumb {
    background-color: #A78BFA;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background-color: #A78BFA;
}

::-webkit-scrollbar {
    width: 8px;
}

.typing-dots {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.typing-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--primary);
    margin: 0 2px;
    animation: typing 1.4s infinite ease-in-out;
}

.typing-dots span:nth-child(1) { animation-delay: -0.32s; }
.typing-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing {
    0%, 80%, 100% {
        transform: scale(0);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

.no-data-text {
    color: var(--text-light);
    opacity: 0.7;
}