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

:root {
    --bg-black: #000000;
    --text-white: #ffffff;
    --text-gray: #a0a0a0;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --accent-turquoise: #00e5ff;
    --accent-glow: rgba(0, 229, 255, 0.3);
    --node-trigger: #ff6b6b;
    --node-action: #4ecdc4;
    --node-condition: #ffe66d;
    --node-tool: #a8dadc;
    --node-endpoint: #f1faee;
}

body {
    font-family: 'Montserrat', sans-serif;
    background: var(--bg-black);
    color: var(--text-white);
    zoom: 0.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== LOGIN PAGE ========== */

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: #000000;
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, rgba(255, 255, 255, 0.01) 1px, transparent 1px),
        linear-gradient(rgba(255, 255, 255, 0.01) 1px, transparent 1px);
    background-size: 80px 80px;
    animation: gridMove 20s linear infinite;
    pointer-events: none;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(80px, 80px); }
}

.login-page::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 229, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.6; transform: translate(-50%, -50%) scale(1.1); }
}

.login-container {
    width: 100%;
    max-width: 480px;
    padding: 2rem;
    z-index: 10;
    animation: fadeInUp 0.8s ease-out;
}

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

.login-card {
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 3.5rem;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.6),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-turquoise), transparent);
    animation: scanLine 3s linear infinite;
}

@keyframes scanLine {
    0% { left: -100%; }
    100% { left: 100%; }
}

.login-header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: 0.4em;
    text-align: center;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    background: linear-gradient(135deg, #ffffff 0%, var(--accent-turquoise) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-header p {
    font-size: 0.85rem;
    font-weight: 300;
    letter-spacing: 0.25em;
    text-align: center;
    color: var(--text-gray);
    margin-bottom: 2.5rem;
    text-transform: uppercase;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    position: relative;
}

.form-group label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--text-gray);
    transition: color 0.3s ease;
}

.form-group input:focus + label,
.form-group select:focus + label,
.form-group textarea:focus + label {
    color: var(--accent-turquoise);
}

.form-group input,
.form-group select,
.form-group textarea {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 1rem 1.25rem;
    color: var(--text-white);
    font-family: 'Montserrat', sans-serif;
    font-size: 0.95rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-turquoise);
    background: rgba(255, 255, 255, 0.04);
    box-shadow: 
        0 0 0 3px rgba(0, 229, 255, 0.1),
        0 4px 12px rgba(0, 229, 255, 0.15);
    transform: translateY(-2px);
}

.btn-login {
    background: var(--accent-turquoise);
    color: #000000;
    border: none;
    border-radius: 10px;
    padding: 1.125rem;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    margin-top: 1rem;
    position: relative;
    overflow: hidden;
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-login:hover::before {
    width: 300px;
    height: 300px;
}

.btn-login:hover {
    background: #00d4ff;
    transform: translateY(-3px);
    box-shadow: 
        0 8px 24px rgba(0, 229, 255, 0.4),
        0 0 40px rgba(0, 229, 255, 0.2);
}

.btn-login:active {
    transform: translateY(-1px);
}

.login-footer {
    margin-top: 2.5rem;
    text-align: center;
}

.login-footer p {
    font-size: 0.65rem;
    font-weight: 300;
    letter-spacing: 0.2em;
    color: var(--text-gray);
    text-transform: uppercase;
    opacity: 0.6;
}

/* ========== DASHBOARD PAGE ========== */

.dashboard-page {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: #000000;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2.5rem;
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    border-bottom: 1px solid var(--glass-border);
    position: relative;
    z-index: 100;
}

.dashboard-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-turquoise), transparent);
    opacity: 0.3;
}

.header-left h1 {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    background: linear-gradient(135deg, #ffffff 0%, var(--accent-turquoise) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-subtitle {
    font-size: 0.65rem;
    font-weight: 300;
    letter-spacing: 0.25em;
    color: var(--text-gray);
    text-transform: uppercase;
    display: block;
    margin-top: 0.25rem;
}

.header-right {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.btn-add,
.btn-lang,
.btn-logout {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 0.75rem 1.5rem;
    color: var(--text-white);
    font-family: 'Montserrat', sans-serif;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-add::before,
.btn-lang::before,
.btn-logout::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.btn-add:hover::before,
.btn-lang:hover::before,
.btn-logout:hover::before {
    left: 100%;
}

.btn-add:hover,
.btn-lang:hover,
.btn-logout:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-turquoise);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 229, 255, 0.2);
}

.btn-add {
    background: var(--accent-turquoise);
    color: #000000;
    border-color: var(--accent-turquoise);
    font-weight: 700;
}

.btn-add:hover {
    background: #00d4ff;
    box-shadow: 0 4px 16px rgba(0, 229, 255, 0.4);
}

.dashboard-main {
    flex: 1;
    overflow: hidden;
    position: relative;
}

.workflow-canvas {
    width: 100%;
    height: 100%;
    position: relative;
    background: 
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 50px 50px;
}

.canvas-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

#nodesContainer {
    position: relative;
    width: 100%;
    height: 100%;
}

.workflow-node {
    position: absolute;
    background: var(--glass-bg);
    backdrop-filter: blur(25px);
    border: 1px solid var(--glass-border);
    border-radius: 14px;
    padding: 1.75rem;
    min-width: 220px;
    max-width: 320px;
    cursor: move;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.workflow-node:hover {
    border-color: var(--accent-turquoise);
    box-shadow: 
        0 8px 24px rgba(0, 0, 0, 0.4),
        0 0 30px rgba(0, 229, 255, 0.15);
    transform: translateY(-4px);
}

.node-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.node-type {
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.node-delete {
    background: none;
    border: none;
    color: #ff6b6b;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0.5;
    transition: all 0.3s ease;
    line-height: 1;
}

.node-delete:hover {
    opacity: 1;
    transform: scale(1.2);
    filter: drop-shadow(0 0 8px rgba(255, 107, 107, 0.6));
}

.node-title {
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.node-description {
    font-size: 0.8rem;
    font-weight: 300;
    color: var(--text-gray);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.node-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.7rem;
    color: var(--accent-turquoise);
    text-decoration: none;
    letter-spacing: 0.1em;
    font-weight: 600;
    text-transform: uppercase;
    transition: all 0.3s ease;
    padding: 0.5rem 0;
}

.node-link:hover {
    color: #00d4ff;
    transform: translateX(4px);
    text-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

.connections-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.connection-line {
    stroke: var(--accent-turquoise);
    stroke-width: 2;
    fill: none;
    opacity: 0.5;
    filter: drop-shadow(0 0 4px rgba(0, 229, 255, 0.4));
    animation: connectionPulse 2s ease-in-out infinite;
}

@keyframes connectionPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

/* ========== MODAL ========== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(15px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: 18px;
    padding: 2.5rem;
    max-width: 540px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.6),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    animation: modalSlideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalSlideUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h2 {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    background: linear-gradient(135deg, #ffffff 0%, var(--accent-turquoise) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 2rem;
    cursor: pointer;
    opacity: 0.5;
    transition: all 0.3s ease;
    line-height: 1;
}

.modal-close:hover {
    opacity: 1;
    transform: rotate(90deg);
    color: var(--accent-turquoise);
}

.node-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.btn-cancel,
.btn-save {
    flex: 1;
    padding: 1rem;
    border-radius: 10px;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-cancel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-white);
}

.btn-cancel:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-save {
    background: var(--accent-turquoise);
    border: none;
    color: #000000;
}

.btn-save:hover {
    background: #00d4ff;
    box-shadow: 0 6px 20px rgba(0, 229, 255, 0.4);
    transform: translateY(-2px);
}

/* ========== SCROLLBAR ========== */

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

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.02);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-turquoise);
}

/* ========== RESPONSIVE ========== */

@media (max-width: 768px) {
    body {
        zoom: 1;
    }
    
    .login-card {
        padding: 2.5rem;
    }
    
    .dashboard-header {
        flex-direction: column;
        gap: 1rem;
        padding: 1.25rem 1.5rem;
    }
    
    .header-right {
        width: 100%;
        justify-content: space-between;
    }
    
    .workflow-node {
        min-width: 180px;
        max-width: 280px;
        padding: 1.25rem;
    }
    
    .modal-content {
        padding: 2rem;
    }
}

/* ========== SELECTION ========== */

::selection {
    background: var(--accent-turquoise);
    color: #000000;
}

::-moz-selection {
    background: var(--accent-turquoise);
    color: #000000;
}