/* --- BASE & LAYOUT --- */

body {
    margin: 0;
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-image: radial-gradient(circle at top right, rgba(var(--green-rgb), 0.05) 0%, transparent 40%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
}
      
main {
    flex: 1;
    width: 100%;
    padding-top: 80px; 
}

a { text-decoration: none; transition: 0.2s; }

/* --- GLOBAL HEADER (Glassmorphism) --- */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    height: 70px;
    padding: 0 20px;
    box-sizing: border-box;
    background: var(--bg-glass);
    backdrop-filter: blur(12px); 
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
}

.header h1 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: -0.8px;
    line-height: 1;
    display: flex;
    align-items: center;
}
      
.header h1 > a {
    color: var(--text-main);
    text-decoration: none;
    transition: opacity 0.2s ease;
}

.header h1 > a span { 
    color: var(--accent-green); 
} 

.header h1 > a:hover { 
    opacity: 0.8; 
}

/* Icons */
.icon-btn {
    color: var(--text-dim);
    font-size: 1.2rem;
    padding: 0 10px;
    transition: color 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}
.icon-btn:hover { color: var(--text-main); }

.theme-toggle {
  
}
.theme-toggle:focus-visible {
    outline: 2px solid var(--accent-green);
    outline-offset: 2px;
    border-radius: 6px;
}
.theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.logout-btn {
    color: var(--accent-red);
    font-weight: bold;
}
.logout-btn:hover { opacity: 0.8; }


/* --- CONTAINER & CARDS --- */

.container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 20px 20px 20px;
    box-sizing: border-box;
}

.container.wide { max-width: 1000px; }

.card {
    background: var(--bg-card);
    padding: 30px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    margin-bottom: 20px;
    box-shadow: var(--shadow-card);
}

/* --- TYPOGRAPHY --- */

h1 { color: var(--accent-green); text-align: center; font-size: 1.5rem; margin-bottom: 20px; }
h2 { color: var(--accent-blue); font-size: 1.2rem; margin-top: 25px; }

/* --- FORM ELEMENTS --- */

input[type="text"],
input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 14px;
    background: var(--input-bg);
    border: 1px solid var(--border);
    color: var(--text-main);
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    margin-top: 8px;
    box-sizing: border-box;
    font-size: 0.95rem;
}
input:focus { outline: none; border-color: var(--accent-green); }

/* --- PASSWORD TOGGLE --- */

.password-wrapper {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
}

.password-wrapper input {
    width: 100%;
    padding-right: 45px; 
}

.toggle-btn {
    position: absolute;
    right: 15px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-dim);
    padding: 0;
    display: flex;
    align-items: center;
    transition: color 0.2s;
}

.toggle-btn:hover {
    color: var(--accent-green);
}

.toggle-btn:focus {
    outline: none;
}
      
/* --- BUTTONS --- */

.btn, .help-btn {
    display: block;
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    text-align: center;
    margin-top: 15px;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    box-sizing: border-box;
}
.btn:hover, .help-btn:hover { transform: translateY(-2px); opacity: 0.95; }
.btn-green { background: var(--accent-green); color: var(--text-on-accent); }
.btn-green:hover { box-shadow: 0 4px 15px rgba(var(--green-rgb), 0.3); }

.btn-blue {
    background: transparent;
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    width: 100%; 
}
.btn-blue:hover { 
  background: rgba(var(--blue-rgb), 0.1); 
}
.btn-links {
    background: transparent;
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    width: auto; 
    display: inline-block;
    padding: 10px 25px;
}
.btn-links:hover {
    border-color: var(--text-main);
    color: var(--text-main);
    background: rgba(var(--blue-rgb), 0.1);
}
.btn-red {
    background: rgba(var(--red-rgb), 0.1);
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
    width: 100%;
}
.btn-red:hover { background: rgba(var(--red-rgb), 0.2); }

/* Navigation Buttons */
.help-nav-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-dim);
    width: auto; 
    display: inline-block;
    padding: 10px 25px;
}
.help-nav-btn:hover {
    border-color: var(--text-main);
    color: var(--text-main);
    background: var(--hover-bg);
}

/* --- UTILITIES --- */
.link { color: var(--accent-blue); font-size: 0.9rem; float: right; margin-top: 5px;}
.get-key-link { color: var(--accent-green); font-size: 0.9rem; float: right; margin-top: 5px;}
.link:hover, .get-key-link:hover { text-decoration: underline; }

.grid-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }

/* Messages */
.error-message {
    color: var(--alert-danger-text);
    padding: 15px;
    background: rgba(var(--red-rgb), 0.15);
    border: 1px solid var(--accent-red);
    border-radius: 8px;
    margin: 15px 0;
    text-align: center;
}
.success-message {
    color: var(--alert-success-text);
    padding: 15px;
    background: rgba(var(--green-rgb), 0.15);
    border: 1px solid var(--accent-green);
    border-radius: 8px;
    margin: 15px 0;
    text-align: center;
}

/* --- GLOBAL NAV BUTTON AREA --- */
.back-nav-container {
    margin: 0px;
    padding: 30px 0 30px 0;
    text-align: center;
    width: 100%;
    box-sizing: border-box;
}

.back-nav-container:empty {
    display: none;
    padding: 0;
    margin: 0;
    border: none;
}
      
.back-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent !important;
    border: 1px solid var(--text-dim) !important;
    color: var(--text-dim) !important;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 800;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    margin-bottom: 5px; 
}

.back-nav-btn:hover {
    background: var(--hover-bg) !important; 
    border-color: var(--text-soft) !important;
    color: var(--text-soft) !important;  
    transform: translateY(-2px);
}

/* PWA Progress Bar */
#pwa-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--accent-green);
    z-index: 9999;
    transition: width 0.3s ease;
    display: none;
}

.main-content {
    transition: opacity 0.15s ease-in-out;
}
.content-faded {
    opacity: 0.3;
}

/* --- GLOBAL FOOTER --- */

.footer {
    background: transparent; 
    border-top: 1px solid var(--border);
    padding: 40px 5%; 
    margin-top: auto; 
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-dim);
    font-weight: 500;
}

.footer p {
    margin: 0;
}

.footer a { 
    color: var(--accent-green); 
    font-weight: 600; 
    text-decoration: none;
    transition: opacity 0.2s;
}

.footer a:hover { 
    opacity: 0.8; 
}

@media (max-width: 600px) {
    .footer { 
        padding: 30px 20px;
    }
}

@media (display-mode: standalone) {

    body { background-color: var(--pwa-bg); }

  }