/* SMTP SIMULATOR - ENHANCED STYLES */

/* DEFAULT STYLES */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    outline: none;
}

html {
    font-size: 62.5%;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
    min-height: 100vh;
    position: relative;
    font-size: 1.6rem;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(138, 79, 192, 0.3) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}
/* End of Default Styles */

/* MAIN CONTAINER */
.container {
    max-width: 140rem;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.98);
    border-radius: 2rem;
    box-shadow: 
        0 2rem 6rem rgba(0,0,0,0.3),
        0 0 0 .1rem rgba(255, 255, 255, 0.1) inset;
    overflow: hidden;
    position: relative;
    z-index: 1;
    backdrop-filter: blur(1rem);
}
/* End of Main Container */

/* HEADER SECTION */
header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 4rem 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: headerGlow 8s ease-in-out infinite;
}

@keyframes headerGlow {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(10%, 10%); }
}

header h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    font-weight: 700;
    position: relative;
    z-index: 1;
    text-shadow: 0 .2rem 1rem rgba(0,0,0,0.2);
    letter-spacing: -.05rem;
}

header p {
    font-size: 1.15rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
    font-weight: 300;
}
/* End of Header Section */

/* CONTENT LAYOUT */
.content {
    display: grid;
    grid-template-columns: 42rem 1fr;
    gap: 0;
}
/* End of Content Layout */

/* INPUT SECTION (LEFT PANEL) */
.input-section {
    background: linear-gradient(180deg, #f8f9fa 0%, #f0f1f5 100%);
    padding: 3.5rem;
    border-right: .1rem solid rgba(0,0,0,0.08);
    position: relative;
}

.input-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: .3rem;
    background: linear-gradient(90deg, #667eea, #764ba2);
}

.input-group {
    margin-bottom: 2.2rem;
}

.input-group label {
    display: block;
    margin-bottom: 1rem;
    font-weight: 600;
    color: #2d3748;
    font-size: 1.4rem;
    letter-spacing: .03rem;
}

.input-group input,
.input-group textarea {
    width: 100%;
    padding: 1.4rem 1.6rem;
    border: .2rem solid #e2e8f0;
    border-radius: 1rem;
    font-size: 1.4rem;
    transition: all 0.3s ease;
    background: #fff;
    font-family: inherit;
}

.input-group input:hover,
.input-group textarea:hover {
    border-color: #cbd5e0;
}

.input-group input:focus,
.input-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 .3rem rgba(102, 126, 234, 0.1);
    transform: translateY(-.1rem);
}

.input-group textarea {
    resize: vertical;
    min-height: 9rem;
    line-height: 1.6;
}

.config-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.8rem;
}
/* End of Input Section */

/* SEND BUTTON */
.send-btn {
    width: 100%;
    padding: 1.8rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 1.2rem;
    font-size: 1.8rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 
        0 .4rem 1.5rem rgba(102, 126, 234, 0.4),
        0 0 0 0 rgba(102, 126, 234, 0.5);
    position: relative;
    overflow: hidden;
}

.send-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.send-btn:hover:not(:disabled)::before {
    width: 30rem;
    height: 30rem;
}

.send-btn:hover:not(:disabled) {
    transform: translateY(-.3rem);
    box-shadow: 
        0 .8rem 2.5rem rgba(102, 126, 234, 0.5),
        0 0 0 .3rem rgba(102, 126, 234, 0.2);
}

.send-btn:active:not(:disabled) {
    transform: translateY(-.1rem);
}

.send-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}
/* End of Send Button */

/* VISUALIZATION SECTION (RIGHT PANEL) */
.visualization-section {
    padding: 3.5rem;
    background: linear-gradient(180deg, #ffffff 0%, #fafbfc 100%);
}
/* End of Visualization Section */

/* PROGRESS SECTION */
.progress-section {
    margin-bottom: 3.5rem;
}

.progress-bar {
    width: 100%;
    height: 3.6rem;
    background: linear-gradient(90deg, #e2e8f0 0%, #edf2f7 100%);
    border-radius: 1.8rem;
    overflow: hidden;
    margin-bottom: 1.2rem;
    box-shadow: inset 0 .2rem .4rem rgba(0,0,0,0.06);
    position: relative;
}

.progress-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: .1rem;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    width: 0%;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 1.4rem;
    box-shadow: 0 0 2rem rgba(102, 126, 234, 0.5);
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}
/* End of Progress Section */

/* STATUS BADGE */
.status-badge {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.6rem;
    font-size: 1.3rem;
    letter-spacing: .05rem;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.status-badge.idle {
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e0 100%);
    color: #4a5568;
    box-shadow: 0 .2rem .8rem rgba(0,0,0,0.1);
}

.status-badge.processing {
    background: linear-gradient(135deg, #ffd93d 0%, #ffb800 100%);
    color: #744210;
    box-shadow: 0 .2rem 1.2rem rgba(255, 184, 0, 0.4);
    animation: pulse-badge 1.5s ease-in-out infinite;
}

.status-badge.success {
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    color: #fff;
    box-shadow: 0 .2rem 1.2rem rgba(72, 187, 120, 0.4);
}

.status-badge.error {
    background: linear-gradient(135deg, #fc8181 0%, #f56565 100%);
    color: #fff;
    box-shadow: 0 .2rem 1.2rem rgba(245, 101, 101, 0.4);
}

@keyframes pulse-badge {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}
/* End of Status Badge */

/* NETWORK DIAGRAM */
.network-diagram {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3.5rem;
    padding: 4rem 3.5rem;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    border-radius: 1.6rem;
    position: relative;
    min-height: 20rem;
    box-shadow: 
        0 .4rem 2rem rgba(0,0,0,0.08),
        inset 0 .1rem 0 rgba(255,255,255,0.8);
}

.node {
    text-align: center;
    position: relative;
    z-index: 2;
}

.node-icon {
    width: 11rem;
    height: 11rem;
    background: linear-gradient(135deg, #ffffff 0%, #f7fafc 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4.5rem;
    margin: 0 auto 1.2rem;
    border: .4rem solid #e2e8f0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 
        0 .8rem 2rem rgba(0,0,0,0.12),
        inset 0 .2rem .4rem rgba(255,255,255,0.8);
    position: relative;
}

.node-icon::before {
    content: '';
    position: absolute;
    top: -.4rem;
    left: -.4rem;
    right: -.4rem;
    bottom: -.4rem;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
}

.node-icon:hover {
    transform: translateY(-.5rem) scale(1.05);
    box-shadow: 0 1.2rem 3rem rgba(0,0,0,0.15);
}

.node-icon.active {
    border-color: transparent;
    box-shadow: 
        0 0 0 .4rem rgba(102, 126, 234, 0.3),
        0 0 3rem rgba(102, 126, 234, 0.5),
        0 1.2rem 3rem rgba(0,0,0,0.15);
    transform: scale(1.15);
    animation: node-pulse 1.5s ease-in-out infinite;
}

.node-icon.active::before {
    opacity: 1;
}

@keyframes node-pulse {
    0%, 100% { 
        box-shadow: 
            0 0 0 .4rem rgba(102, 126, 234, 0.3),
            0 0 3rem rgba(102, 126, 234, 0.5),
            0 1.2rem 3rem rgba(0,0,0,0.15);
    }
    50% { 
        box-shadow: 
            0 0 0 .8rem rgba(102, 126, 234, 0.2),
            0 0 4rem rgba(102, 126, 234, 0.6),
            0 1.2rem 3rem rgba(0,0,0,0.15);
    }
}

.node-label {
    font-weight: 700;
    color: #2d3748;
    font-size: 1.5rem;
    letter-spacing: .03rem;
}

.connection-line {
    position: absolute;
    top: 50%;
    left: 16rem;
    right: 16rem;
    height: .5rem;
    background: linear-gradient(90deg, #cbd5e0 0%, #a0aec0 50%, #cbd5e0 100%);
    z-index: 1;
    border-radius: .3rem;
    box-shadow: 0 .2rem .8rem rgba(0,0,0,0.1);
}

.connection-line::before,
.connection-line::after {
    content: '';
    position: absolute;
    width: 1.2rem;
    height: 1.2rem;
    background: #a0aec0;
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
}

.connection-line::before { left: -.6rem; }
.connection-line::after { right: -.6rem; }
/* End of Network Diagram */

/* ANIMATED PACKET */
.packet {
    position: absolute;
    width: 3.5rem;
    height: 3.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    display: none;
    box-shadow: 
        0 0 2rem rgba(102, 126, 234, 0.8),
        0 0 4rem rgba(102, 126, 234, 0.4),
        inset 0 .2rem .4rem rgba(255,255,255,0.3);
    border: .2rem solid rgba(255, 255, 255, 0.5);
}

.packet::before {
    content: '📦';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.8rem;
}

.packet.moving-right {
    display: block;
    animation: moveRight 2s linear, packet-glow 0.5s ease-in-out infinite;
}

.packet.moving-left {
    display: block;
    animation: moveLeft 2s linear, packet-glow 0.5s ease-in-out infinite;
}

@keyframes moveRight {
    from { left: 0; }
    to { left: calc(100% - 3.5rem); }
}

@keyframes moveLeft {
    from { left: calc(100% - 3.5rem); }
    to { left: 0; }
}

@keyframes packet-glow {
    0%, 100% { 
        box-shadow: 
            0 0 2rem rgba(102, 126, 234, 0.8),
            0 0 4rem rgba(102, 126, 234, 0.4),
            inset 0 .2rem .4rem rgba(255,255,255,0.3);
    }
    50% { 
        box-shadow: 
            0 0 3rem rgba(102, 126, 234, 1),
            0 0 6rem rgba(102, 126, 234, 0.6),
            inset 0 .2rem .4rem rgba(255,255,255,0.3);
    }
}
/* End of Animated Packet */

/* STATISTICS GRID */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.8rem;
    margin-top: 2.5rem;
}

.stat-card {
    background: linear-gradient(135deg, #ffffff 0%, #f7fafc 100%);
    padding: 2.5rem;
    border-radius: 1.4rem;
    text-align: center;
    transition: all 0.3s ease;
    border: .1rem solid #e2e8f0;
    box-shadow: 0 .2rem 1rem rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: .3rem;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-.5rem);
    box-shadow: 0 .8rem 2.5rem rgba(0,0,0,0.12);
    border-color: #667eea;
}

.stat-card:hover::before {
    transform: scaleX(1);
}

.stat-value {
    font-size: 3.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: .8rem;
    line-height: 1;
}

.stat-label {
    color: #718096;
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: .05rem;
    text-transform: uppercase;
}
/* End of Statistics Grid */

/* LOG SECTION */
.log-section {
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    color: #e2e8f0;
    padding: 2.5rem;
    border-radius: 1.4rem;
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: 1.3rem;
    max-height: 42rem;
    overflow-y: auto;
    line-height: 1.8;
    box-shadow: 
        inset 0 .2rem 1rem rgba(0,0,0,0.3),
        0 .4rem 2rem rgba(0,0,0,0.15);
    border: .1rem solid rgba(255,255,255,0.1);
}

.log-section::-webkit-scrollbar {
    width: .8rem;
}

.log-section::-webkit-scrollbar-track {
    background: rgba(0,0,0,0.2);
    border-radius: .4rem;
}

.log-section::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.5);
    border-radius: .4rem;
}

.log-section::-webkit-scrollbar-thumb:hover {
    background: rgba(102, 126, 234, 0.7);
}

.log-entry {
    margin-bottom: 1rem;
    padding: .6rem 1.2rem;
    border-radius: .6rem;
    transition: all 0.2s ease;
    border-left: .3rem solid transparent;
}

.log-entry:hover {
    background: rgba(255,255,255,0.05);
}

.log-entry.command {
    color: #81e6d9;
    border-left-color: #81e6d9;
}

.log-entry.response {
    color: #fbd38d;
    border-left-color: #fbd38d;
}

.log-entry.error {
    color: #fc8181;
    background: rgba(252, 129, 129, 0.15);
    border-left-color: #fc8181;
    font-weight: 600;
}

.log-entry.warning {
    color: #f6e05e;
    background: rgba(246, 224, 94, 0.15);
    border-left-color: #f6e05e;
}

.log-entry.success {
    color: #68d391;
    background: rgba(104, 211, 145, 0.15);
    border-left-color: #68d391;
    font-weight: 600;
}

.log-timestamp {
    color: #a0aec0;
    margin-right: 1.2rem;
    font-weight: 600;
}
/* End of Log Section */

/* INFO BOX */
.info-box {
    background: linear-gradient(135deg, #ebf8ff 0%, #e6fffa 100%);
    border-left: .4rem solid #4299e1;
    padding: 1.8rem 2rem;
    margin-bottom: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 .2rem 1rem rgba(66, 153, 225, 0.1);
    transition: all 0.3s ease;
}

.info-box:hover {
    box-shadow: 0 .4rem 1.5rem rgba(66, 153, 225, 0.2);
    transform: translateX(.3rem);
}

.info-box h3 {
    color: #2c5282;
    margin-bottom: 1rem;
    font-size: 1.6rem;
    font-weight: 700;
}

.info-box p {
    color: #2d3748;
    line-height: 1.7;
    font-size: 1.35rem;
}
/* End of Info Box */

/* TOP NAVIGATION BAR */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 1.5rem 3rem;
    z-index: 1000;
    box-shadow: 0 .2rem 1.5rem rgba(0,0,0,0.3);
}

.nav-buttons {
    max-width: 140rem;
    margin: 0 auto;
    display: flex;
    justify-content: flex-end;
    gap: 1.2rem;
}

.nav-btn {
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.15);
    border: .2rem solid rgba(255, 255, 255, 0.3);
    color: #fff;
    border-radius: .8rem;
    font-size: 1.4rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(.5rem);
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-.2rem);
    box-shadow: 0 .4rem 1.2rem rgba(0,0,0,0.2);
}

body {
    padding-top: 8rem;
}
/* End of Top Navigation Bar */

/* MODAL STYLES */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 2000;
    backdrop-filter: blur(.5rem);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

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

.modal-content {
    background: linear-gradient(135deg, #ffffff 0%, #f7fafc 100%);
    padding: 4rem;
    border-radius: 2rem;
    max-width: 60rem;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 2rem 6rem rgba(0,0,0,0.5);
    animation: slideUp 0.4s ease;
}

.modal-content.large-modal {
    max-width: 90rem;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(5rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-content::-webkit-scrollbar {
    width: .8rem;
}

.modal-content::-webkit-scrollbar-track {
    background: #e2e8f0;
    border-radius: .4rem;
}

.modal-content::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: .4rem;
}

.close-btn {
    position: absolute;
    top: 2rem;
    right: 2rem;
    font-size: 3.5rem;
    font-weight: 300;
    color: #718096;
    cursor: pointer;
    transition: all 0.3s ease;
    line-height: 1;
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.close-btn:hover {
    color: #667eea;
    background: rgba(102, 126, 234, 0.1);
    transform: rotate(90deg);
}

.modal-content h2 {
    font-size: 3rem;
    color: #2d3748;
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: .3rem solid #667eea;
}

.modal-content h3 {
    font-size: 2rem;
    color: #4a5568;
    margin-bottom: 1.2rem;
    margin-top: 2rem;
}

.modal-section {
    margin-bottom: 3rem;
}

.modal-section p {
    font-size: 1.5rem;
    line-height: 1.8;
    color: #4a5568;
    margin-bottom: 1rem;
}

.modal-section ul,
.modal-section ol {
    margin-left: 2.5rem;
    margin-bottom: 1.5rem;
}

.modal-section li {
    font-size: 1.5rem;
    line-height: 1.8;
    color: #4a5568;
    margin-bottom: .8rem;
}

.modal-section strong {
    color: #2d3748;
    font-weight: 700;
}
/* End of Modal Styles */

/* TEAM GRID (DEVELOPED BY MODAL) */
.team-sections-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.team-section {
    display: flex;
    flex-direction: column;
}

.team-section h2 {
    font-size: 2.4rem;
    color: #2d3748;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: .3rem solid #667eea;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
    gap: 2rem;
}

.team-member {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    padding: 2.5rem 2rem;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    border-radius: 1.4rem;
    border: .2rem solid #e2e8f0;
    transition: all 0.3s ease;
    min-height: 18rem;
    text-align: center;
}

.team-member:hover {
    transform: translateY(-.5rem);
    box-shadow: 0 .8rem 2.5rem rgba(0,0,0,0.12);
    border-color: #667eea;
}

.member-photo {
    width: 10rem;
    height: 10rem;
    flex-shrink: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4.5rem;
    border: .5rem solid #fff;
    box-shadow: 
        0 .6rem 2rem rgba(0,0,0,0.15),
        inset 0 0 0 .2rem rgba(255,255,255,0.3);
    overflow: hidden;
    position: relative;
}

.member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.member-photo:not(:has(img))::before {
    content: attr(data-initials);
    font-size: 4.5rem;
    color: #fff;
    font-weight: 700;
}

.member-info {
    text-align: center;
    flex: 1;
}

.team-member h3 {
    font-size: 1.8rem;
    color: #2d3748;
    margin-bottom: .5rem;
    margin-top: 0;
    font-weight: 700;
}

.team-member .reg-no {
    font-size: 1.3rem;
    color: #718096;
    margin-bottom: 0;
    font-family: 'Courier New', monospace;
    font-weight: 600;
}

.project-info {
    background: linear-gradient(135deg, #ebf8ff 0%, #e6fffa 100%);
    padding: 2.5rem;
    border-radius: 1.4rem;
    border-left: .4rem solid #4299e1;
}

.project-info h3 {
    color: #2c5282;
    margin-bottom: 1.5rem;
    margin-top: 0;
}

.project-info p {
    font-size: 1.5rem;
    color: #2d3748;
    margin-bottom: .8rem;
}
/* End of Team Grid */

/*   RESPONSIVE DESIGN    */
@media (max-width: 1024px) {
    .content {
        grid-template-columns: 1fr;
    }

    .input-section {
        border-right: none;
        border-bottom: .1rem solid rgba(0,0,0,0.08);
    }

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

    .network-diagram {
        padding: 3rem 2rem;
    }
    
    .team-sections-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 55%;
    }

    header h1 {
        font-size: 2rem;
    }

    .network-diagram {
        flex-direction: column;
        gap: 2.5rem;
    }

    .connection-line {
        display: none;
    }

    .config-grid {
        grid-template-columns: 1fr;
    }

    .node-icon {
        width: 9rem;
        height: 9rem;
        font-size: 3.5rem;
    }

    .nav-buttons {
        flex-wrap: wrap;
        gap: .8rem;
    }

    .nav-btn {
        padding: .8rem 1.5rem;
        font-size: 1.2rem;
    }
    
    .member-photo {
        width: 10rem;
        height: 10rem;
    }

    .modal-content {
        padding: 3rem 2rem;
        margin: 2rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 1rem;
    }
    
    .container {
        border-radius: 1.5rem;
    }
    
    .input-section,
    .visualization-section {
        padding: 2rem;
    }
    
    .member-photo {
        width: 9rem;
        height: 9rem;
    }
    
    .team-member {
        padding: 2rem;
    }
}
/* End of Responsive Design */