/* =========================================
   VARIABLES & THEMES
   ========================================= */
:root {
    --bg-color: #ffffff; --text-color: #1e293b; --card-bg: rgba(255, 255, 255, 0.6);
    --card-border: rgba(37, 99, 235, 0.2); --primary-color: #2563eb; --primary-hover: #1d4ed8;
    --accent-color: #eab308; --accent-hover: #ca8a04; --danger-color: #ef4444;
    --input-bg: rgba(248, 250, 252, 0.9); --shadow: 0 10px 40px 0 rgba(37, 99, 235, 0.08);
    --toast-bg: rgba(255, 255, 255, 0.95);
}
[data-theme="dark"] {
    --bg-color: #0f172a; --text-color: #f8fafc; --card-bg: rgba(30, 41, 59, 0.6);
    --card-border: rgba(59, 130, 246, 0.2); --primary-color: #3b82f6; --primary-hover: #2563eb;
    --accent-color: #fbbf24; --accent-hover: #f59e0b; --input-bg: rgba(15, 23, 42, 0.9);
    --shadow: 0 10px 40px 0 rgba(0, 0, 0, 0.5); --toast-bg: rgba(30, 41, 59, 0.95);
}

/* =========================================
   BASE STYLES
   ========================================= */
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', sans-serif; }
body { background: var(--bg-color); color: var(--text-color); transition: background 0.3s ease, color 0.3s ease; min-height: 100vh; display: flex; flex-direction: column; }

.navbar { display: flex; justify-content: space-between; align-items: center; padding: 1rem 5%; background: var(--card-bg); backdrop-filter: blur(12px); border-bottom: 1px solid var(--card-border); }
.logo { font-size: 1.6rem; font-weight: bold; color: var(--primary-color); display: flex; align-items: center; gap: 0.6rem;}
.logo i { color: var(--accent-color); }

/* Animated Logo */
.animated-logo-text {
    background: linear-gradient(270deg, #ff0000, #ff7f00, #ffff00, #00ff00, #0000ff, #4b0082, #9400d3, #ff0000);
    background-size: 800% 800%; -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    animation: rainbowInfinity 8s linear infinite;
}
@keyframes rainbowInfinity { 0% { background-position: 0% 50%; } 100% { background-position: 100% 50%; } }

.icon-btn { background: transparent; border: none; font-size: 1.2rem; color: var(--text-color); cursor: pointer; padding: 0.5rem; transition: transform 0.2s, color 0.2s; }
.icon-btn:hover { transform: scale(1.1); color: var(--primary-color); }

.container { flex: 1; padding: 2rem 5%; max-width: 1200px; margin: 0 auto; width: 100%; }
.view { display: none; animation: fadeIn 0.4s; }
.view.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Cards */
.glass-card { background: var(--card-bg); backdrop-filter: blur(16px); border: 1px solid var(--card-border); border-radius: 20px; padding: 2.5rem; box-shadow: var(--shadow); }
.main-card { max-width: 600px; margin: 0 auto; }

/* Password Output Area */
.output-container { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; background: var(--input-bg); border-radius: 12px; padding: 0.5rem; border: 2px solid var(--primary-color); align-items: center; }
#password-output { flex: 1 1 auto; min-width: 0; border: none; background: transparent; color: var(--primary-color); font-size: 1.4rem; font-weight: 600; outline: none; padding-left: 0.8rem; letter-spacing: 1.5px; text-overflow: ellipsis; white-space: nowrap; overflow: hidden; }

/* Strength Meter */
.strength-meter { margin-bottom: 1.5rem; }
.strength-bar { height: 8px; border-radius: 4px; background: #e2e8f0; transition: all 0.4s ease; width: 0%; }
#strength-text { font-size: 0.85rem; margin-top: 0.5rem; display: block; font-weight: 600; text-align: right; color: var(--text-color);}

/* Settings */
.settings-group { display: flex; flex-direction: column; gap: 1.5rem; margin-bottom: 2rem; }
.setting label { display: block; margin-bottom: 0.5rem; font-weight: 600; color: var(--primary-color); }
input[type="range"] { width: 100%; accent-color: var(--accent-color); cursor: pointer; }
.checkbox-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.checkbox-label { display: flex; align-items: center; gap: 0.5rem; cursor: pointer; font-weight: 500;}
input[type="checkbox"] { accent-color: var(--primary-color); width: 18px; height: 18px; cursor: pointer; }

/* Dashboard & Inputs */
.modern-input { width: 100%; padding: 0.9rem 1.2rem; border-radius: 10px; border: 1px solid var(--card-border); background: var(--input-bg); color: var(--text-color); margin-bottom: 1rem; outline: none; font-size: 1rem; transition: border-color 0.3s; }
.modern-input:focus { border-color: var(--accent-color); }
.search-input { margin-bottom: 0; min-width: 250px; }

/* Buttons */
.primary-btn, .accent-btn, .danger-btn { padding: 0.9rem 1.5rem; border-radius: 10px; border: none; cursor: pointer; font-weight: 600; font-size: 1rem; transition: all 0.2s ease; display: inline-flex; align-items: center; gap: 0.5rem; justify-content: center; }
.primary-btn { background: var(--primary-color); color: white; }
.primary-btn:hover { background: var(--primary-hover); transform: translateY(-2px); }
.accent-btn { background: var(--accent-color); color: #fff; }
.accent-btn:hover { background: var(--accent-hover); transform: translateY(-2px); }
.danger-btn { background: var(--danger-color); color: white; }
.danger-btn:hover { background: #dc2626; transform: translateY(-2px); }
.w-100 { width: 100%; }

/* Dashboard Layout */
.dashboard-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2.5rem; flex-wrap: wrap; gap: 1.5rem;}
.dashboard-header h2 { color: var(--primary-color); font-size: 1.8rem; }
.dash-actions { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap;}

.passwords-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }

/* Saved Password Cards */
.pass-card { padding: 1.2rem; display: flex; flex-direction: column; gap: 0.6rem; position: relative; border-top: 4px solid var(--accent-color); overflow: hidden; }
.pass-card h3 { color: var(--primary-color); margin-bottom: 0.2rem; font-size: 1.1rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pass-card p { font-size: 0.95rem; margin-bottom: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pass-card-actions { display: flex; gap: 0.5rem; margin-top: 0.5rem; border-top: 1px solid var(--card-border); padding-top: 0.6rem;}
.hidden-pass { font-family: monospace; letter-spacing: 1px; font-size: 1rem; color: var(--primary-color); font-weight: bold; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;}
.pass-card-actions .icon-btn { padding: 0.4rem; font-size: 1rem; }

/* Modals */
.modal { display: none; position: fixed; z-index: 100; left: 0; top: 0; width: 100%; height: 100%; background: rgba(15, 23, 42, 0.6); backdrop-filter: blur(8px); justify-content: center; align-items: center; opacity: 0; transition: opacity 0.3s; }
.modal.active { display: flex; opacity: 1; }
.modal-content { width: 90%; max-width: 420px; position: relative; transform: scale(0.9); transition: transform 0.3s; }
.modal.active .modal-content { transform: scale(1); }
.close-modal { position: absolute; right: 1.5rem; top: 1.5rem; cursor: pointer; font-size: 1.8rem; color: var(--text-color); transition: color 0.2s;}
.close-modal:hover { color: var(--danger-color); }
.modal-tabs { display: flex; margin-bottom: 1.5rem; border-bottom: 2px solid var(--card-border); }
.tab { flex: 1; padding: 0.8rem; background: transparent; border: none; color: var(--text-color); cursor: pointer; border-bottom: 3px solid transparent; font-weight: 600; font-size: 1.1rem;}
.tab.active { border-bottom-color: var(--accent-color); color: var(--primary-color); }
.auth-form { display: none; }
.auth-form.active { display: block; animation: fadeIn 0.3s; }

/* Toasts */
#toast-container { position: fixed; top: 20px; right: 20px; display: flex; flex-direction: column; gap: 12px; z-index: 9999; }
.toast { background: var(--toast-bg); backdrop-filter: blur(12px); color: var(--text-color); padding: 1rem 1.5rem; border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.15); border-left: 5px solid var(--primary-color); display: flex; align-items: center; gap: 1rem; animation: slideInRight 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55), fadeOut 0.3s ease 0.7s forwards; font-weight: 600; min-width: 280px; position: relative; overflow: hidden; }
.toast::after { content: ''; position: absolute; bottom: 0; left: 0; height: 3px; width: 100%; background: var(--primary-color); animation: progress 1s linear forwards; }
.toast.error { border-left-color: var(--danger-color); }
.toast.error::after { background: var(--danger-color); }
.toast.warning { border-left-color: var(--accent-color); }
.toast.warning::after { background: var(--accent-color); }
.toast i { font-size: 1.5rem; }

/* ANIMATIONS & RESPONSIVENESS */
@keyframes slideInRight { from { transform: translateX(120%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeOut { from { opacity: 1; transform: translateY(-10px); } to { opacity: 0; transform: translateY(-20px); } }
@keyframes progress { from { width: 100%; } to { width: 0%; } }

/* Mobile Specific */
@media (max-width: 768px) { 
    .dashboard-header { flex-direction: column; align-items: flex-start; } 
    .dash-actions { width: 100%; flex-wrap: wrap; } 
    .search-input { width: 100%; } 
    .passwords-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); } 
}

@media (max-width: 600px) {
    .passwords-grid { grid-template-columns: 1fr; }
}