/* ============================================================
   ROOT VARIABLES – GLOBAL DESIGN SYSTEM
   ============================================================ */
:root {
    --bg-main: #02040a;
    --bg-alt: #041a2f;

    --tron-cyan: #00eaff;
    --tron-green: #00ff9d;
    --tron-blue: #00c8ff;

    --text-main: #7feaff;
    --text-light: #b8f3ff;

    --glow-cyan: 0 0 20px var(--tron-cyan);
    --glow-green: 0 0 20px var(--tron-green);

    --radius: 8px;
    --transition: 0.25s ease;
}

/* ============================================================
   GLOBAL PAGE STYLING
   ============================================================ */
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    overflow-y: auto;
}

body {
    font-family: "Consolas", "Courier New", monospace;
    background: var(--bg-main);
    color: var(--text-main);
    text-shadow: 0 0 6px var(--tron-blue);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ============================================================
   MATRIX CANVAS BACKGROUND
   ============================================================ */
#matrixCanvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: -10;
    pointer-events: none;
}

/* Glow Overlay */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at center, rgba(0,255,157,0.05), transparent 70%);
    pointer-events: none;
    z-index: -5;
}

/* ============================================================
   MATRIX CODE RAIN
   ============================================================ */
.matrix-rain {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -8;
    overflow: hidden;
    opacity: 0.15;
}

.matrix-rain span {
    position: absolute;
    top: -100px;
    color: var(--tron-green);
    font-size: 18px;
    font-family: monospace;
    text-shadow: 0 0 10px var(--tron-green);
    animation: rain 4s linear infinite;
}

@keyframes rain {
    0% { transform: translateY(-100px); opacity: 0; }
    10% { opacity: 1; }
    100% { transform: translateY(110vh); opacity: 0; }
}

/* ============================================================
   TRON LOGO (ULTRA)
   ============================================================ */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 22px;
    background: linear-gradient(90deg, var(--bg-alt), var(--bg-main) 70%);
    border-bottom: 3px solid var(--tron-cyan);
    position: relative;
    overflow: hidden;
    box-shadow:
        0 0 18px var(--tron-cyan),
        inset 0 0 22px rgba(0, 234, 255, 0.25);
}

/* Tron Laser Lines */
.logo::before,
.logo::after {
    content: "";
    position: absolute;
    height: 2px;
    width: 100%;
    left: 0;
    background: linear-gradient(90deg, transparent, var(--tron-cyan), transparent);
    animation: tronLine 3s linear infinite;
    opacity: 0.8;
}

.logo::before { top: 0; }
.logo::after { bottom: 0; animation-delay: 1.5s; }

@keyframes tronLine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Logo Text */
.logo-text {
    font-size: 26px;
    font-weight: bold;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--tron-cyan);
    text-shadow:
        0 0 10px var(--tron-cyan),
        0 0 20px var(--tron-cyan),
        0 0 40px var(--tron-cyan);
    animation: tronPulse 2.5s ease-in-out infinite;
}

@keyframes tronPulse {
    0% { opacity: 0.9; }
    50% { opacity: 1; text-shadow: 0 0 60px var(--tron-cyan); }
    100% { opacity: 0.9; }
}

/* ============================================================
   NAVIGATION
   ============================================================ */
nav {
    background: #010814;
    padding: 12px 25px;
    border-bottom: 2px solid var(--tron-blue);
    box-shadow: 0 0 20px var(--tron-blue);
    display: flex;
    align-items: center;
}

nav a {
    color: var(--text-main);
    margin-right: 25px;
    text-decoration: none;
    font-weight: bold;
    letter-spacing: 1px;
    text-shadow: 0 0 10px var(--tron-blue);
    transition: var(--transition);
}

nav a:hover {
    color: var(--tron-green);
    text-shadow: 0 0 15px var(--tron-green), 0 0 25px var(--tron-green);
}

nav .login-right {
    margin-left: auto;
}

/* ============================================================
   CONTENT
   ============================================================ */
.content {
    padding: 25px;
    font-size: 18px;
    line-height: 1.6;
    color: var(--text-light);
    flex: 1;
    position: relative;
    z-index: 10;
}

/* ============================================================
   MATRIX BOXES
   ============================================================ */
.matrix-box {
    background: rgba(0, 0, 0, 0.55);
    border: 1px solid var(--tron-green);
    padding: 25px;
    border-radius: var(--radius);
    box-shadow: 0 0 15px var(--tron-green);
    color: var(--text-light);
    max-width: 800px;
    margin: 40px auto;
}

.matrix-box h2,
.matrix-box h3 {
    color: var(--tron-green);
    text-shadow: 0 0 10px var(--tron-green);
}

/* ============================================================
   FORMS
   ============================================================ */
.matrix-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.matrix-form label {
    color: var(--tron-green);
    font-weight: bold;
    text-shadow: 0 0 8px var(--tron-green);
}

.matrix-form input,
.matrix-form textarea {
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid var(--tron-green);
    padding: 10px;
    color: var(--text-main);
    font-size: 16px;
    border-radius: 5px;
    outline: none;
    box-shadow: 0 0 10px var(--tron-green);
}

.matrix-form input:focus,
.matrix-form textarea:focus {
    border-color: var(--tron-cyan);
    box-shadow: 0 0 15px var(--tron-cyan);
}

.matrix-form button {
    background: var(--tron-green);
    color: var(--bg-main);
    padding: 12px;
    border: none;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    border-radius: 5px;
    box-shadow: 0 0 15px var(--tron-green);
    transition: var(--transition);
}

.matrix-form button:hover {
    background: var(--tron-cyan);
    box-shadow: 0 0 20px var(--tron-cyan);
}

/* ============================================================
   SUCCESS BOX
   ============================================================ */
.success-box {
    animation: successFade 1.5s ease-out forwards;
    border-color: var(--tron-green);
    box-shadow: 0 0 25px var(--tron-green);
}

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

/* ============================================================
   FOOTER
   ============================================================ */
footer {
    text-align: center;
    padding: 20px;
    background: rgba(0,0,0,0.4);
    color: white;
    position: relative;
    z-index: 10;
}
/* ============================================================
   3D HOLOGRAM BUTTON (TRON × CYBERPUNK)
   ============================================================ */
.btn-holo {
    display: inline-block;
    padding: 16px 40px;
    font-size: 18px;
    font-weight: bold;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--tron-cyan);
    text-decoration: none;
    border: 2px solid var(--tron-cyan);
    border-radius: var(--radius);
    background: rgba(0, 20, 40, 0.35);
    backdrop-filter: blur(4px);
    position: relative;
    overflow: hidden;

    box-shadow:
        0 0 20px var(--tron-cyan),
        inset 0 0 25px rgba(0, 234, 255, 0.4);

    transform-style: preserve-3d;
    transition: var(--transition);
}

/* Hover Lift */
.btn-holo:hover {
    transform: translateY(-6px) scale(1.05);
    box-shadow:
        0 0 30px var(--tron-cyan),
        inset 0 0 35px rgba(0, 234, 255, 0.5);
}

/* Hologram Shine */
.btn-holo::before {
    content: "";
    position: absolute;
    top: -150%;
    left: -50%;
    width: 200%;
    height: 300%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(0,255,255,0.25),
        transparent
    );
    transform: rotate(25deg);
    animation: holoShine 4s linear infinite;
}

@keyframes holoShine {
    0% { transform: translateX(-100%) rotate(25deg); }
    100% { transform: translateX(100%) rotate(25deg); }
}

/* Reflection */
.btn-holo::after {
    content: "";
    position: absolute;
    bottom: -40%;
    left: 0;
    width: 100%;
    height: 40%;
    background: linear-gradient(
        to bottom,
        rgba(0,234,255,0.25),
        transparent
    );
    filter: blur(8px);
    transform: scaleY(-1);
    opacity: 0.4;
}
/* ============================================================
   3D HOLOGRAM BUTTON (TRON × CYBERPUNK)
   ============================================================ */
.btn-holo {
    display: inline-block;
    padding: 16px 40px;
    font-size: 18px;
    font-weight: bold;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--tron-cyan);
    text-decoration: none;
    border: 2px solid var(--tron-cyan);
    border-radius: var(--radius);
    background: rgba(0, 20, 40, 0.35);
    backdrop-filter: blur(4px);
    position: relative;
    overflow: hidden;

    /* Glow + Hologram */
    box-shadow:
        0 0 20px var(--tron-cyan),
        inset 0 0 25px rgba(0, 234, 255, 0.4);

    transform-style: preserve-3d;
    transition: var(--transition);
}

/* Hover Lift */
.btn-holo:hover {
    transform: translateY(-6px) scale(1.05);
    box-shadow:
        0 0 30px var(--tron-cyan),
        inset 0 0 35px rgba(0, 234, 255, 0.5);
}

/* Hologram Shine */
.btn-holo::before {
    content: "";
    position: absolute;
    top: -150%;
    left: -50%;
    width: 200%;
    height: 300%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(0,255,255,0.25),
        transparent
    );
    transform: rotate(25deg);
    animation: holoShine 4s linear infinite;
}

@keyframes holoShine {
    0% { transform: translateX(-100%) rotate(25deg); }
    100% { transform: translateX(100%) rotate(25deg); }
}

/* Reflection */
.btn-holo::after {
    content: "";
    position: absolute;
    bottom: -40%;
    left: 0;
    width: 100%;
    height: 40%;
    background: linear-gradient(
        to bottom,
        rgba(0,234,255,0.25),
        transparent
    );
    filter: blur(8px);
    transform: scaleY(-1);
    opacity: 0.4;
}