:root {
    --bg-primary: #0b0f19;
    --bg-card: rgba(15, 23, 42, 0.45);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --purple: #8b5cf6;
    --purple-hover: #7c3aed;
    --danger: #ef4444;
}

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

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(at 0% 0%, rgba(139, 92, 246, 0.08) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(59, 130, 246, 0.06) 0px, transparent 50%);
    color: var(--text-primary);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 1.5rem;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2.5rem 2rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    text-align: center;
}

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

.logo-icon {
    font-size: 2.5rem;
    color: var(--purple);
    margin-bottom: 0.75rem;
}

.login-header h2 {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-bottom: 0.35rem;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.input-group {
    text-align: left;
    margin-bottom: 1.25rem;
}

.input-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper i {
    position: absolute;
    left: 1rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    pointer-events: none;
}

.input-wrapper input {
    width: 100%;
    padding: 0.8rem 1rem 0.8rem 2.75rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: all 0.2s ease;
}

.input-wrapper input:focus {
    border-color: var(--purple);
    background: rgba(0, 0, 0, 0.4);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.error-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    color: var(--danger);
    font-size: 0.85rem;
    margin-bottom: 1.25rem;
    text-align: left;
}

.btn-login {
    width: 100%;
    padding: 0.85rem;
    background: var(--purple);
    border: none;
    border-radius: 12px;
    color: #ffffff;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-login:hover {
    background: var(--purple-hover);
    transform: translateY(-1px);
}

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

.btn-login:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}