/* Neon Cyber Login Form - Variables applied everywhere */

:root {
    /* Primary palette (user provided) */
    --matrix-green: #00ff41;       /* Primary neon green */
    --cyber-pink: #ff5555;         /* Hot pink accent */
    --terminal-black: #0a0a0a;     /* Deep background */
    --panel-black: rgba(0,0,0,0.9); /* Panel background */
    --grid-green: rgba(0,255,65,0.3); /* Grid lines */
    --glitch-red: #ff5555;         /* Error/glitch effects */
    --scan-blue: #00ccff;          /* Scanner effects */
    --text-green: #00ff41;         /* Primary text */
    --text-pink: #ff5555;          /* Accent text */

    /* Derived / utility colors for variants used across the stylesheet */
    --matrix-green-005: rgba(0,255,65,0.05);
    --matrix-green-01: rgba(0,255,65,0.1);
    --matrix-green-02: rgba(0,255,65,0.2);
    --matrix-green-03: rgba(0,255,65,0.3);
    --matrix-green-07: rgba(0,255,65,0.7);

    --panel-dark: rgba(0,0,0,0.9);
    --header-dark-1: #1a1a1a;
    --header-dark-2: #2a2a2a;

    --btn-yellow: #ffff55;
    --btn-green: #55ff55;
    --pink-light: #ff5555;
    --divider-scan: rgba(0,255,65,0.3);
}

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

body {
    font-family: 'Courier New', 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    background: var(--terminal-black);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    /* line-height: 1.4; */
    position: relative;
    overflow: hidden;
}

/* Cyber Grid Background */
.cyber-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.grid-line {
    background: linear-gradient(90deg, transparent, var(--matrix-green), transparent);
    opacity: 0.1;
    animation: gridPulse 4s ease-in-out infinite;
}

.grid-h-1 {
    top: 20%;
    left: 0;
    width: 100%;
    height: 1px;
    animation-delay: 0s;
}

.grid-h-2 {
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    animation-delay: 1.5s;
}

.grid-h-3 {
    top: 80%;
    left: 0;
    width: 100%;
    height: 1px;
    animation-delay: 3s;
}

.grid-v-1 {
    top: 0;
    left: 25%;
    width: 1px;
    height: 100%;
    background: linear-gradient(0deg, transparent, var(--matrix-green), transparent);
    animation-delay: 0.75s;
}

.grid-v-2 {
    top: 0;
    left: 75%;
    width: 1px;
    height: 100%;
    background: linear-gradient(0deg, transparent, var(--matrix-green), transparent);
    animation-delay: 2.25s;
}

@keyframes gridPulse {
    0%, 100% { opacity: 0.1; }
    50% { opacity: 0.3; }
}

.cyber-glitch {
    position: absolute;
    width: 200px;
    height: 2px;
    background: var(--cyber-pink);
    opacity: 0;
    animation: glitchFlash 6s ease-in-out infinite;
}

.glitch-1 {
    top: 30%;
    left: 10%;
    animation-delay: 2s;
}

.glitch-2 {
    top: 70%;
    right: 10%;
    animation-delay: 4s;
}

@keyframes glitchFlash {
    0%, 95%, 100% { opacity: 0; transform: scaleX(0); }
    96%, 99% { opacity: 0.8; transform: scaleX(1); }
}

.login-container {
    width: 100%;
    max-width: 450px;
    position: relative;
    z-index: 1;
}

.cyber-terminal {
    background: var(--panel-black);
    border: 2px solid var(--matrix-green);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 0 30px var(--matrix-green-02), inset 0 0 0 1px rgba(0,255,65,0.1);
    position: relative;
}

.terminal-header {
    background: linear-gradient(90deg, var(--header-dark-1), var(--header-dark-2));
    padding: 12px 16px;
    border-bottom: 1px solid var(--matrix-green);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.terminal-buttons {
    display: flex;
    gap: 8px;
}

.term-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.btn-red {
    background: var(--glitch-red);
    box-shadow: 0 0 8px rgba(255,85,85,0.5);
}

.btn-yellow {
    background: var(--btn-yellow);
    box-shadow: 0 0 8px rgba(255,255,85,0.5);
}

.btn-green {
    background: var(--btn-green);
    box-shadow: 0 0 8px rgba(85,255,85,0.5);
}

.terminal-title {
    color: var(--matrix-green);
    font-size: 12px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cyber-content {
    padding: 40px 32px;
}

.neon-header {
    text-align: center;
    margin-bottom: 36px;
}

.cyber-logo {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-frame {
    position: relative;
    z-index: 2;
    color: var(--matrix-green);
    border: 2px solid var(--matrix-green);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--matrix-green-005);
    animation: logoScan 3s ease-in-out infinite;
}

@keyframes logoScan {
    0%, 100% { 
        border-color: var(--matrix-green); 
        box-shadow: 0 0 10px var(--matrix-green-02); 
    }
    50% { 
        border-color: var(--cyber-pink); 
        box-shadow: 0 0 15px rgba(255,0,128,0.5); 
    }
}

.logo-scanner {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--matrix-green-02), transparent);
    animation: scanLine 2s linear infinite;
}

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

.neon-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(0,255,65,0.2) 0%, transparent 70%);
    animation: neonPulse 2s ease-in-out infinite;
}

@keyframes neonPulse {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.2); opacity: 0.8; }
}

.cyber-title {
    color: var(--matrix-green);
    font-size: 1.75rem;
    font-weight: bold;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
}

.title-glitch {
    position: relative;
    display: inline-block;
    animation: textGlitch 4s ease-in-out infinite;
}

@keyframes textGlitch {
    0%, 90%, 100% { 
        transform: translate(0); 
        filter: hue-rotate(0deg); 
    }
    91%, 95% { 
        transform: translate(-2px, 1px); 
        filter: hue-rotate(90deg); 
    }
    96%, 99% { 
        transform: translate(1px, -1px); 
        filter: hue-rotate(180deg); 
    }
}

.access-text {
    color: var(--cyber-pink);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Cyber Form Fields */
.cyber-field {
    position: relative;
    margin-bottom: 28px;
}

.field-frame {
    position: relative;
    background: transparent;
    border: 1px solid var(--matrix-green-03);
    border-radius: 4px;
    overflow: visible;
}

.field-border {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 1px solid transparent;
    border-radius: 4px;
    background: linear-gradient(45deg, var(--matrix-green), var(--cyber-pink)) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: destination-out;
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cyber-field input {
    width: 100%;
    background: transparent;
    border: none;
    padding: 20px 60px 16px 16px;
    color: var(--text-green);
    font-size: 14px;
    font-weight: bold;
    outline: none;
    position: relative;
    z-index: 2;
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cyber-field input::placeholder {
    color: transparent;
}

.cyber-field label {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(0,255,65,0.6);
    font-size: 14px;
    font-weight: bold;
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 3;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cyber-field input:focus ~ .field-border {
    opacity: 1;
}

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

.scan-line {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--matrix-green-03), transparent);
    transition: left 0.5s ease;
}

.cyber-field input:focus ~ .cyber-scanner .scan-line {
    left: 100%;
    animation: continuousScan 2s linear infinite;
}

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

/* Cyber Toggle */
.cyber-field:has(.cyber-toggle) input {
    padding-right: 100px;
}

.cyber-toggle {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    z-index: 4;
    padding: 4px;
}

.toggle-frame {
    width: 24px;
    height: 24px;
    border: 1px solid rgba(0,255,65,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--matrix-green);
    transition: all 0.3s ease;
    background: rgba(0, 0, 0, 0.8);
}

.cyber-toggle:hover .toggle-frame {
    border-color: var(--matrix-green);
    box-shadow: 0 0 8px var(--matrix-green-02);
}

.eye-blocked {
    display: none;
}

.cyber-toggle.toggle-active .eye-scan {
    display: none;
}

.cyber-toggle.toggle-active .eye-blocked {
    display: block;
}

/* Cyber Options */
.cyber-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.neon-checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 12px;
    color: var(--matrix-green);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.neon-checkbox input[type="checkbox"] {
    display: none;
}

.checkbox-matrix {
    width: 20px;
    height: 20px;
    margin-right: 12px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.matrix-frame {
    width: 100%;
    height: 100%;
    border: 1px solid rgba(0,255,65,0.5);
    background: rgba(0, 0, 0, 0.8);
    transition: all 0.3s ease;
    position: absolute;
}

.checkbox-matrix svg {
    color: transparent;
    transition: color 0.3s ease;
    position: relative;
    z-index: 1;
}

.neon-checkbox input[type="checkbox"]:checked + .checkbox-matrix .matrix-frame {
    background: var(--matrix-green-02);
    border-color: var(--matrix-green);
    box-shadow: 0 0 8px var(--matrix-green-02);
}

.neon-checkbox input[type="checkbox"]:checked + .checkbox-matrix svg {
    color: var(--matrix-green);
}

.cyber-link {
    color: var(--cyber-pink);
    text-decoration: none;
    font-size: 12px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    position: relative;
}

.cyber-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--cyber-pink);
    transition: width 0.3s ease;
}

.cyber-link:hover::after {
    width: 100%;
}

.cyber-link:hover {
    color: var(--pink-light);
    text-shadow: 0 0 5px rgba(255,0,128,0.5);
}

/* Neon Button */
.neon-button {
    width: 100%;
    background: transparent;
    color: var(--matrix-green);
    border: 2px solid var(--matrix-green);
    border-radius: 4px;
    padding: 0;
    cursor: pointer;
    font-family: inherit;
    font-size: 14px;
    font-weight: bold;
    position: relative;
    margin-bottom: 32px;
    overflow: hidden;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.btn-matrix {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--panel-dark);
    transition: all 0.3s ease;
}

.neon-button:hover {
    border-color: var(--cyber-pink);
    color: var(--cyber-pink);
    box-shadow: 0 0 15px rgba(255,0,128,0.5);
}

.neon-button:hover .btn-matrix {
    background: rgba(255,0,128,0.1);
}

.neon-button:active {
    transform: scale(0.98);
}

.btn-text {
    position: relative;
    z-index: 2;
    transition: opacity 0.3s ease;
}

.btn-loader {
    position: absolute;
    z-index: 2;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.matrix-loader {
    display: flex;
    gap: 4px;
}

.matrix-bar {
    width: 3px;
    height: 16px;
    background: var(--matrix-green);
    animation: matrixPulse 1.2s ease-in-out infinite;
}

.matrix-bar:nth-child(2) { animation-delay: 0.1s; }
.matrix-bar:nth-child(3) { animation-delay: 0.2s; }
.matrix-bar:nth-child(4) { animation-delay: 0.3s; }

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

.neon-button.loading .btn-text {
    opacity: 0;
}

.neon-button.loading .btn-loader {
    opacity: 1;
}

.btn-glow {
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--matrix-green);
    border-radius: 6px;
    opacity: 0;
    filter: blur(8px);
    transition: opacity 0.3s ease;
    z-index: -1;
}

.neon-button:hover .btn-glow {
    opacity: 0.3;
}

/* Cyber Divider */
.cyber-divider {
    display: flex;
    align-items: center;
    margin: 32px 0;
    gap: 16px;
}

.divider-grid {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--divider-scan), transparent);
    position: relative;
    overflow: hidden;
}

.divider-grid::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--matrix-green), transparent);
    animation: dividerScan 3s linear infinite;
}

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

.divider-text {
    color: var(--matrix-green-07);
    font-size: 11px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Matrix Social */
.matrix-social {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
}

.social-matrix {
    flex: 1;
    background: transparent;
    color: var(--matrix-green);
    border: 1px solid var(--matrix-green-03);
    border-radius: 4px;
    padding: 12px 16px;
    cursor: pointer;
    font-family: inherit;
    font-size: 11px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
    min-height: 44px;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.social-frame {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--panel-dark);
    transition: all 0.3s ease;
}

.social-matrix:hover {
    border-color: var(--matrix-green);
    box-shadow: 0 0 10px var(--matrix-green-02);
}

.social-matrix:hover .social-frame {
    background: var(--matrix-green-02);
}

.social-matrix span,
.social-matrix svg {
    position: relative;
    z-index: 2;
}

.social-glow {
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    background: var(--matrix-green-02);
    border-radius: 5px;
    opacity: 0;
    filter: blur(4px);
    transition: opacity 0.3s ease;
    z-index: 0;
}

.social-matrix:hover .social-glow {
    opacity: 1;
}

/* Matrix Signup */
.matrix-signup {
    text-align: center;
    font-size: 12px;
    color: var(--matrix-green);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.matrix-link {
    color: var(--cyber-pink);
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    position: relative;
}

.matrix-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--cyber-pink);
    transition: width 0.3s ease;
}

.matrix-link:hover::after {
    width: 100%;
}

.matrix-link:hover {
    color: var(--pink-light);
    text-shadow: 0 0 5px rgba(255,0,128,0.5);
}

.cyber-field input:focus + label,
.cyber-field input:not(:placeholder-shown) + label {
    top: -8px;
    font-size: 14px;
    color: var(--matrix-green);
    transform: translateY(0);
    background: transparent;
    padding: 0 4px;
}

.cyber-error {
    color: var(--cyber-pink);
    font-size: 11px;
    font-weight: bold;
    margin-top: 6px;
    opacity: 0;
    transform: translateY(-4px);
    transition: all 0.3s ease;
    position: relative;
    z-index: 5;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cyber-error.show {
    opacity: 1;
    transform: translateY(0);
}

.cyber-field.error .field-frame {
    border-color: var(--cyber-pink);
}

.cyber-field.error .field-border {
    opacity: 1;
}

.cyber-field.error label {
    color: var(--cyber-pink);
}

/* Cyber Success */
.cyber-success {
    display: none;
    text-align: center;
    padding: 40px 20px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease;
}

.cyber-success.show {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.success-matrix {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.matrix-rings {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.success-ring {
    position: absolute;
    border: 2px solid var(--matrix-green);
    border-radius: 50%;
    animation: matrixExpand 1.5s ease-out forwards;
    opacity: 0;
}

.ring-1 {
    width: 60px;
    height: 60px;
    top: 20px;
    left: 20px;
    animation-delay: 0s;
    margin-top: -25%;

}

.ring-2 {
    width: 80px;
    height: 80px;
    top: 10px;
    left: 10px;
    animation-delay: 0.3s;
    margin-top: -25%;

}

.ring-3 {
    width: 100px;
    height: 100px;
    top: 0;
    left: 0;
    animation-delay: 0.6s;
    margin-top: -25%;
}

@keyframes matrixExpand {
    0% { opacity: 0; transform: scale(0); }
    50% { opacity: 1; transform: scale(1.1); }
    100% { opacity: 0.8; transform: scale(1); }
}

.success-core {
    position: relative;
    z-index: 2;
    color: var(--matrix-green);
    animation: coreActivate 0.8s ease-out 0.9s forwards;
    opacity: 0;
    margin-top: -42%;
    margin-left: -5%;

}

@keyframes coreActivate {
    0% { opacity: 0; transform: scale(0); }
    100% { opacity: 1; transform: scale(1); }
}

.success-title {
    color: var(--matrix-green);
    font-size: 1.1rem;
    font-weight: bold;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 5%;
}

.success-desc {
    color: var(--matrix-green-02);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Mobile Responsive */
@media (max-width: 480px) {
    body {
        padding: 16px;
    }
    
    .cyber-terminal {
        border-radius: 4px;
    }
    
    .cyber-content {
        padding: 32px 24px;
    }
    
    .cyber-title {
        font-size: 1.5rem;
    }
    
    .cyber-logo {
        width: 60px;
        height: 60px;
    }
    
    .logo-frame {
        width: 50px;
        height: 50px;
    }
    
    .cyber-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .matrix-social {
        flex-direction: column;
    }
    
    .grid-line {
        opacity: 0.05;
    }
}

/* ================================================================= */

/* Matrix Animation */

/* ================================================================ */

body {
    background: black;
    overflow: hidden; /* Hide scrollbars if canvas is larger than viewport */
    position: relative; /* Needed for pseudo-element positioning */
}
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.82); /* Darkness */
    /* backdrop-filter: blur(px); /* Blur effect */
    z-index: 0; /* Between canvas and login container */
}
canvas {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1; /* Ensure canvas is in the background */
}
.login-container {
    position: relative;
    z-index: 1; /* Ensure login content is above the canvas and overlay */
}


/* Chrome, Edge, Safari autofill fix */

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
input:-webkit-autofill:active {
  -webkit-box-shadow: 0 0 0 1000px transparent inset !important;
  box-shadow: 0 0 0 1000px transparent inset !important;
  background-color: transparent !important;
  color: var(--text-green) !important; /* তোমার ইনপুট টেক্সটের neon color */
  -webkit-text-fill-color: var(--text-green) !important;
  caret-color: var(--text-green) !important;
  transition: background-color 5000s ease-in-out 0s; /* Chrome এর delay hack */
}