/* Reset & Base Styles */
:root {
    /* Warna Utama (Tombol & Ikon) - Tosca */
    --primary-color: #0d427f;
    /* Warna Hover (Saat kursor di tombol) - Tosca lebih gelap */
    --primary-dark: #0d427f;

    /* Background Halaman - Biru Tosca Tua Gelap */
    --bg-color: #0d427f;

    /* Warna Card Login tetap Putih agar tulisan terbaca jelas */
    --white: #ffffff;

    /* Warna Teks (Hitam keabuan agar nyaman di mata) */
    --text-color: #1f2937;
    --text-light: #6b7280;

    /* Warna Error */
    --error-bg: #fee2e2;
    --error-text: #dc2626;

    /* Border Input */
    --input-border: #d1d5db;

    /* Shadow dibuat lebih kuat sedikit karena background gelap */
    --shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-color);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Login Container */
.login-container {
    width: 100%;
    padding: 1rem;
    display: flex;
    justify-content: center;
}

.login-card {
    background: var(--white);
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.login-icon {
    width: 60px;
    height: 60px;
    background: #eff6ff;
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 1rem;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Form Elements */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.9rem;
}

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

.input-with-icon i {
    position: absolute;
    left: 1rem;
    color: var(--text-light);
    font-size: 1rem;
    z-index: 10;
    pointer-events: none;
    /* Supaya klik tembus ke input */
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    /* Padding kiri lebih besar untuk ikon */
    border: 1px solid var(--input-border);
    border-radius: 0.5rem;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    outline: none;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Password Toggle Button */
.password-toggle {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 0;
    font-size: 1rem;
    z-index: 20;
}

.password-toggle:hover {
    color: var(--text-color);
}

/* Login Button */
.btn-login {
    width: 100%;
    padding: 0.875rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.btn-login:hover {
    background-color: var(--primary-dark);
}

.btn-login:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Alert Error */
.alert-error {
    background-color: var(--error-bg);
    color: var(--error-text);
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Footer */
.login-footer {
    text-align: center;
    margin-top: 2rem;
    border-top: 1px solid #e5e7eb;
    padding-top: 1.5rem;
}

/* Loading Spinner (untuk script JS Anda) */
.btn-loading {
    position: relative;
    color: transparent !important;
    /* Sembunyikan teks saat loading */
}

.btn-loading::after {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.8s linear infinite;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}