/* ----------  Design Tokens & Theming  ---------- */
:root {
    --color-primary: #0076ff; /* electric blue  */
    --color-accent: #00d1b2; /* vibrant teal   */
    --bg-light: #f8fafc;
    --bg-dark: #0e0f12;
    --glass-light: rgba(255,255,255,.16);
    --glass-dark: rgba(20,20,24,.35);
    --text-base: #101215;
    --radius: 1.4rem;
    --blur: 24px;
    --transition: .25s cubic-bezier(.4,0,.2,1);
    font-family: 'Inter', system-ui, sans-serif;
    font-size: clamp(15px,1.2vw,18px);
    color-scheme: light dark;
}

[data-theme="dark"] {
    --bg-light: var(--bg-dark);
    --glass-light: var(--glass-dark);
    --text-base: #e4e4e7;
}

/* ----------  Page Layout  ---------- */
.login-body {
    margin: 0;
    min-height: 100vh;
    display: grid;
    place-items: center;
    background: transparent; /* removed grey */
    overflow: hidden;
}

/* ----------  Video + Tint Overlay  ---------- */
.canvas-bg, .bg-video {
    position: fixed;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 100vh;
    transform: translate(-50%,-50%);
    object-fit: cover;
    object-position: center;
    z-index: -3;
    pointer-events: none;
}

.bg-video {
    position: fixed;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 100vh;
    transform: translate(-50%,-50%);
    object-fit: cover;
    z-index: -3;
    filter: brightness(.85) saturate(1.1);
}

    .bg-video::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient( 135deg, var(--color-primary)/15%, var(--color-accent )/15% );
        pointer-events: none;
    }

@media(prefers-reduced-motion:reduce) {
    .bg-video {
        display: none;
    }
}

/* ----------  Accent Shapes  ---------- */
.accent {
    position: fixed;
    width: 40vmax;
    height: 40vmax;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    opacity: .12;
    filter: blur(50px);
    z-index: -2;
    pointer-events: none;
}

.accent--shape1 {
    top: -5%;
    left: -10%;
    clip-path: polygon(0 0, 100% 0, 0 100%);
}

.accent--shape2 {
    bottom: -5%;
    right: -10%;
    clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

/* ----------  Glass Card  ---------- */
.glass-card {
    width: min(92vw,400px);
    padding: clamp(1.5rem,5vw,3rem);
    background: rgba(255,255,255,0.16); /* glass */
    backdrop-filter: blur(9px); /* glass */
    border: 3px solid rgba(255,255,255,0.25);
    border-radius: var(--radius);
    box-shadow: 0 6px 50px rgba(0,0,0,0.12);
    display: grid;
    gap: 1rem;
    text-align: center;
    animation: slide-fade .6s ease-out, breathe 8s ease-in-out infinite;
}

    .glass-card.loading::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: linear-gradient(120deg, var(--color-primary), var(--color-accent), var(--color-primary));
        background-size: 200% 100%;
        animation: gradientFlow 2s linear infinite;
        opacity: 0.50;
        z-index: -1;
        border-radius: var(--radius);
    }

@keyframes gradientFlow {
    0% {
        background-position: 0% 0%;
    }

    100% {
        background-position: 200% 0%;
    }
}

@keyframes slide-fade {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes breathe {
    0%,100% {
        box-shadow: 0 6px 50px rgba(0,0,0,.10);
    }

    50% {
        box-shadow: 0 10px 60px rgba(0,0,0,.16);
    }
}

.glass-card:focus-within {
    animation-play-state: paused;
}

/* ----------  Logo & Heading  ---------- */
.logo {
    width: 80px;
    margin: 0 auto;
}
.portal-title {
    font-size: clamp(1.8rem, 3vw, 2.3rem);
    font-weight: 700;
    letter-spacing: 0.02em;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 1px 2px 0 #e4e4e7, 1px 1px 1px rgba(0,0,0,.1), -2px -2px 2px rgba(255,255,255,.2);
    padding-bottom: 0.4rem;
    position: relative;
    animation: gradient-slide 6s ease infinite;
}

    .portal-title::after {
        content: "";
        position: absolute;
        bottom: 0;
        left: 50%;
        width: 3rem;
        height: 4px;
        background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
        border-radius: 2px;
        transform: translateX(-50%);
    }

@keyframes gradient-slide {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}
.underline {
    width: 100px;
    height: 8px;
    margin-top: 4px;
    stroke-dasharray: 120;
    stroke-dashoffset: 120;
    animation: draw 1s ease-out forwards;
}

@keyframes draw {
    to {
        stroke-dashoffset: 0;
    }
}
/* ----------  Form Elements  ---------- */
label {
    display: block;
    font-weight: 500;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-top: .5rem;
    text-align: left;
}

input {
    width: 100%;
    padding: .75rem 1rem;
    border: 1px solid rgba(0,0,0,.1);
    border-radius: .75rem;
    font-size: 1rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

    input:focus {
        outline: none;
        border-color: var(--color-primary);
        box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 40%, transparent);
    }

/* shake on invalid */
@keyframes shake {
    10%,90% {
        transform: translateX(-2px);
    }

    20%,80% {
        transform: translateX(4px);
    }

    30%,50%,70% {
        transform: translateX(-8px);
    }

    40%,60% {
        transform: translateX(8px);
    }
}

input:invalid:not(:focus):not(:placeholder-shown) {
    animation: shake .35s both;
    border-color: #e03b44;
}

/* ----------  CTA Button  ---------- */
.cta {
    margin-top: .5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    padding: .75rem;
    border: none;
    border-radius: .75rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(120deg, var(--color-primary), var(--color-accent));
    transition: transform var(--transition), box-shadow var(--transition);
}

    .cta:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 30px rgba(0,0,0,.15);
    }

    .cta:active {
        transform: translateY(0);
    }

    .cta:hover i {
        transform: translateX(3px) rotate(10deg);
        transition: transform var(--transition);
    }

/* ----------  Helper & Validation  ---------- */
.helper-text {
    font-size: .85rem;
    margin-top: .5rem;
}

    .helper-text a {
        color: var(--color-primary);
        text-decoration: underline;
    }

.validation {
    min-height: 1.2rem;
    color: #e03b44;
    text-align: center;
    font-size: .85rem;
}

/* ----------  Responsive  ---------- */
@media (max-width: 480px) {
    .glass-card {
        padding: clamp(1rem,4vw,2.25rem);
    }
}