:root {
    --bg-color: #0d0f12;
    --primary: #5e6ad2;
    --primary-hover: #4b55c0;
    --accent: #00f0ff;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    display: grid;
    place-items: center;
    overflow: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* Background Effects */
.bg-glow {
    position: absolute;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(94, 106, 210, 0.2) 0%, rgba(13, 15, 18, 0) 70%);
    top: -20%;
    left: -10%;
    z-index: 0;
    animation: drift 25s infinite alternate ease-in-out;
}

.bg-glow.two {
    background: radial-gradient(circle, rgba(0, 240, 255, 0.12) 0%, rgba(13, 15, 18, 0) 70%);
    top: auto;
    bottom: -30%;
    left: auto;
    right: -10%;
    animation-direction: alternate-reverse;
}

@keyframes drift {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(100px, -50px) scale(1.1); }
}

.login-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    width: 100%;
    max-width: 420px;
    padding: 3rem 2.5rem;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.6), 0 0 0 1px inset rgba(255,255,255,0.05);
    opacity: 1;
    animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes slideUp {
    from {
        transform: translate(-50%, calc(-50% + 30px));
        opacity: 0;
    }
    to {
        transform: translate(-50%, -50%);
        opacity: 1;
    }
}

.logo-container {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 64px;
    height: 64px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 100%);
    border: 1px solid var(--glass-border);
    margin-bottom: 1.5rem;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff 0%, #a5b4fc 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

.input-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.3s;
}

.input-group input {
    width: 100%;
    padding: 1rem 1.2rem;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-main);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    outline: none;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.password-wrapper {
    position: relative;
    width: 100%;
}

.password-wrapper input {
    padding-right: 3.5rem;
}

.toggle-password {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    border-radius: 8px;
    z-index: 10;
}

.toggle-password:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

.input-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(94, 106, 210, 0.15), inset 0 2px 4px rgba(0,0,0,0.1);
    background: rgba(0, 0, 0, 0.4);
}

.input-group input:focus + label,
.input-group input:not(:placeholder-shown) + label {
    color: var(--text-main);
}

.btn-login {
    width: 100%;
    padding: 1rem;
    background: var(--primary);
    background: linear-gradient(135deg, var(--primary) 0%, #3b45a3 100%);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 10px 20px -10px rgba(94, 106, 210, 0.6);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 25px -10px rgba(94, 106, 210, 0.8);
    filter: brightness(1.1);
}

.btn-login:active {
    transform: translateY(0);
}

.btn-login .spinner {
    display: none;
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.btn-login.loading .text { display: none; }
.btn-login.loading .spinner { display: block; }
.btn-login.loading { cursor: default; opacity: 0.8; transform: translateY(0); }

.error-msg {
    color: #fca5a5;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 8px;
    font-size: 0.85rem;
    text-align: center;
    padding: 0.75rem;
    margin-bottom: 1.5rem;
    opacity: 0;
    transition: all 0.3s;
    transform: translateY(-10px);
    display: none;
}

.error-msg.visible {
    opacity: 1;
    transform: translateY(0);
    display: block;
}
.login-footer {
    margin-top: 2rem;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    border-top: 1px solid var(--glass-border);
    padding-top: 1.5rem;
    opacity: 0.7;
}