/* CSS Variables */
:root {
    /* Light Mode Palette (Provided) */
    --bg-primary: #F7F3EE;
    --bg-secondary: #E6DED4;
    --bg-input: #C9BFB4;
    --bg-card: #E6DED4;
    --accent: #8B825B;
    --accent-hover: #7a7252;
    --text-main: #000000;
    --text-muted: #5c5c5c;
    --white: #ffffff;

    /* Strength Colors */
    --strength-weak: #d9534f;
    --strength-medium: #f0ad4e;
    --strength-strong: #5cb85c;

    /* General UI */
    --radius: 14px;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

/* Dark Mode Overrides */
body.dark-mode {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --bg-input: #2d2d2d;
    --bg-card: #1e1e1e;
    --text-main: #e0e0e0;
    --text-muted: #a0a0a0;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

/* Reset & Base */
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', sans-serif; }

body {
    background-color: var(--bg-primary);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 40px 20px;
    transition: background-color 0.3s, color 0.3s;
}

.main-wrapper { width: 100%; max-width: 520px; }

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.header-content h1 { font-size: 24px; font-weight: 700; margin-bottom: 5px; }
.subtitle { font-size: 14px; color: var(--text-muted); }

.theme-btn {
    background: var(--bg-input);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-main);
    transition: var(--transition);
}
.theme-btn:hover { background: var(--accent); color: var(--white); }

/* Card */
.card {
    background-color: var(--bg-card);
    width: 100%;
    padding: 35px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    transition: background-color 0.3s;
}

/* Input */
.input-section { margin-bottom: 25px; }
.password-input-wrapper {
    position: relative;
    background-color: var(--bg-input);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    transition: var(--transition);
}
.password-input-wrapper:focus-within { box-shadow: 0 0 0 2px var(--accent); }

input[type="password"], input[type="text"] {
    width: 100%;
    background: transparent;
    border: none;
    padding: 16px;
    font-size: 16px;
    color: var(--text-main);
    outline: none;
}
input::placeholder { color: var(--text-muted); opacity: 0.6; }

.input-actions { display: flex; gap: 5px; padding-right: 15px; }
.input-actions button {
    background: transparent; border: none;
    cursor: pointer; color: var(--text-main);
    font-size: 16px; padding: 8px;
    opacity: 0.6; transition: var(--transition);
}
.input-actions button:hover { opacity: 1; }

/* Stats Grid (Entropy & Crack Time) */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 25px;
}
.stat-box {
    background: rgba(0,0,0,0.03);
    padding: 15px;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}
body.dark-mode .stat-box { background: rgba(255,255,255,0.03); }
.stat-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.stat-value { font-size: 18px; font-weight: 700; margin: 5px 0; color: var(--accent); }
.stat-desc { font-size: 10px; color: var(--text-muted); }

/* Strength Meter */
.strength-meter-container { margin-bottom: 25px; }
.strength-meter-bg {
    background-color: rgba(0, 0, 0, 0.1);
    height: 8px; width: 100%; border-radius: 10px; overflow: hidden;
}
.strength-meter-fill {
    height: 100%; width: 0%;
    background-color: var(--bg-input);
    border-radius: 10px;
    transition: width 0.4s ease, background-color 0.4s ease;
}
#strengthText { font-size: 14px; font-weight: 500; text-align: right; margin-top: 8px; min-height: 20px; }

/* Checklist */
.feedback-section { margin-bottom: 30px; }
.requirements-list {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.requirement {
    font-size: 13px; color: var(--text-muted);
    display: flex; align-items: center; gap: 10px;
    transition: var(--transition);
}
.requirement.valid { color: var(--text-main); font-weight: 500; }
.requirement.valid i { color: var(--strength-strong); }
.requirement.warning { color: var(--strength-weak); }

/* Suggestions */
.suggestion-box {
    background: rgba(139, 130, 91, 0.1);
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 30px;
    border-left: 4px solid var(--accent);
}
.suggestion-box.hidden { display: none; }
.suggestion-box p { font-size: 13px; margin-bottom: 10px; }
.suggestion-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.suggestion-tag {
    background: var(--bg-input);
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition);
}
.suggestion-tag:hover { background: var(--accent); color: var(--white); }

/* Generator Section */
.generator-section { border-top: 2px solid rgba(0,0,0,0.05); padding-top: 25px; }
body.dark-mode .generator-section { border-top: 2px solid rgba(255,255,255,0.05); }
.generator-section h3 { font-size: 16px; margin-bottom: 15px; font-weight: 600; }

.generator-row { margin-bottom: 15px; }
.generator-row label { display: flex; justify-content: space-between; font-size: 14px; margin-bottom: 8px; font-weight: 500; }
input[type="range"] { width: 100%; accent-color: var(--accent); cursor: pointer; }

.toggles-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 20px;
}
.checkbox-label {
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text-muted);
}
.checkbox-label input { accent-color: var(--accent); cursor: pointer; }

.btn-primary {
    width: 100%;
    padding: 16px;
    background-color: var(--accent);
    color: var(--white);
    border: none;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}
.btn-primary:hover { background-color: var(--accent-hover); transform: translateY(-2px); }

footer { text-align: center; color: var(--text-muted); font-size: 12px; margin-top: 20px; }

/* Responsive */
@media (max-width: 400px) {
    .requirements-list { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr; }
}