@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700&display=swap');

/* Base font size is 16px by default in browsers */
/* 1rem = 16px */

body {
    margin: 0;
    padding: 0;
    background: #ffffff;
    font-family: 'Inter', sans-serif;
    color: #8f8a87ff;
}

.content {
    max-width: 43.75rem; /* 700px */
    margin-left: 4.375rem; /* 70px */
    padding: 2.5rem 1.25rem; /* 40px 20px */
    text-align: left;
    line-height: 1.6;
    box-sizing: border-box;
}

nav {
    font-size: 1.3rem;
    font-family: 'Inter';
    display: flex;
    left: 1.3;
    gap: 0.625rem; /* 10px */
    color: #000080;
}

/* HEADING */
h1 {
    font-size: 4rem; /* 64px */
    letter-spacing: -0.09375rem; /* -1.5px */
    color: #1C1C1E;
    margin-bottom: 1.25rem; /* 20px */
}

h3 {
    font-size: 1.5rem; /* 24px */
    font-weight: 600;
    color: #6b6767;
    letter-spacing: -0.03125rem; /* -0.5px */
    margin-bottom: -0.7rem;
}

p {
    font-size: 1.3rem; /* 20.8px */
    font-weight: 500;
    letter-spacing: -0.03125rem; /* -0.5px */
    margin-bottom: 1.25rem; /* 20px */
}

p, .star-list {
    font-size: 1.3rem;
    font-weight: 500;
    letter-spacing: -0.03125rem;
    margin-bottom: 1.25rem;
}

.star-list {
    list-style: none; /* remove default bullets */
    padding-left: 1.2em; /* indent to match normal list look */
}

.star-list li::before {
    content: "* "; /* your custom bullet */
    margin-left: -1.2em; /* align bullet with text */
}

/* Letter container */
#letter-container {
    display: flex;
    justify-content: flex-start;
    margin-top: 2.5rem; /* 40px */
    margin-left: 4.375rem; /* 70px - aligns with .content */
    padding-right: 1.25rem; /* 20px - optional, keeps breathing room */
}

#letter-window.minimized #window-body {
    display: none;
}

/* Retro window */
#letter-window {
    width: 37.5rem; /* 600px */
    max-width: 90%;
    border: 0.125rem solid #888; /* 2px */
    box-shadow: 0.3125rem 0.3125rem 0 #555; /* 5px 5px - old-school shadow */
    background: #f0f0f0;
    font-family: 'Courier New', Courier, monospace;
}

/* Title bar */
#title-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #000080; /* classic Win95 blue */
    color: white;
    padding: 0.1875rem 0.25rem; /* 3px 4px */
    font-family: 'Courier New', monospace;
    font-size: 0.9rem; /* 14.4px */
    user-select: none;
}

/* Window control container */
.win-controls {
    display: flex;
    gap: 0.375rem; /* 6px */
    padding-left: 0.25rem; /* 4px */
}

/* Stoplight buttons (Mac-style) */
.win-btn {
    width: 0.75rem; /* 12px */
    height: 0.75rem; /* 12px */
    padding: 0;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    box-shadow: inset 0 0 0 0.0625rem rgba(0,0,0,0.25); /* 1px */
    font-size: 0; /* hide text symbols */
}

/* Individual colors */
.win-btn.close {
    background: #ff5f57;
}

.win-btn.minimize {
    background: #ffbd2e;
}

.win-btn.maximize {
    background: #28c840;
}

/* Optional subtle hover (feels very macOS) */
.win-btn:hover {
    filter: brightness(0.95);
}

.win-btn:active {
    filter: brightness(0.85);
}

#letter-window.maxed {
    width: 90%;
}

/* Editable letter area */
#letter {
    min-height: 15.625rem; /* 250px */
    padding: 0.9375rem; /* 15px */
    background: #fff;
    color: #000;
    font-size: 1.3rem; /* 16px */
    letter-spacing: -0.03125rem; /* -0.5px */
    outline: none; /* remove focus border */
    white-space: pre-wrap; /* preserve line breaks */
}

/* Optional: retro font look */
#letter::placeholder {
    color: #888;
    font-style: italic;
}

#letter-form {
    margin-top: 0.9375rem; /* 15px */
    display: flex;
    flex-direction: column;
    gap: 0.5rem; /* 8px */
    padding: 0.625rem; /* 10px */
}

#letter-form label {
    font-family: 'Courier New', monospace;
    font-weight: bold;
    font-size: 0.9rem; /* 14.4px */
}

#letter-form input {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    padding: 0.25rem 0.375rem; /* 4px 6px */
    border: 0.125rem solid #fff; /* 2px */
    border-bottom-color: #808080;
    border-right-color: #808080;
    background: #c0c0c0;
    box-shadow: inset -0.0625rem -0.0625rem 0 #fff, inset 0.0625rem 0.0625rem 0 #808080; /* -1px -1px, 1px 1px */
}

#letter-form input:focus {
    outline: none;
}

#schedule-button {
    margin-top: 0.5rem; /* 8px */
    background: #c0c0c0;
    border: 0.125rem solid #fff; /* 2px */
    border-bottom-color: #808080;
    border-right-color: #808080;
    padding: 0.3125rem 0.9375rem; /* 5px 15px */
    font-family: 'Courier New', monospace;
    font-weight: bold;
    cursor: pointer;
    box-shadow: inset -0.0625rem -0.0625rem 0 #fff, inset 0.0625rem 0.0625rem 0 #808080;
}

#schedule-button:active {
    box-shadow: inset 0.0625rem 0.0625rem 0 #fff, inset -0.0625rem -0.0625rem 0 #808080;
}

/* RESPONSIVE BREAKPOINTS */

/* Tablets (1024px and below) */
@media (max-width: 64rem) {
    .content {
        margin-right: 12.5rem; /* 200px - give more breathing room */
        margin-left: 2.5rem; /* 40px */
        padding: 1.875rem 1.25rem; /* 30px 20px */
    }
    
    h1 { 
        font-size: 3rem; /* 48px */
    }
    
    p { 
        font-size: 1.1rem; /* 17.6px */
    }
    
    #letter-container {
        margin-left: 2.5rem; /* 40px */
    }
}

/* Phones (768px and below) */
@media (max-width: 48rem) {
    .vertical-navbar {
        top: 0;
        left: 0;
        right: 0;
        height: auto;
        flex-direction: row;
        justify-content: left;
        gap: 1.25rem; /* 20px */
        padding: 0.625rem 1.5625rem; /* 10px 25px */
        background: transparent; /* no background */
        border-bottom: none; /* remove border */
        z-index: 1000; /* stay above content */
    }

    .content {
        margin-left: auto;
        margin-right: auto;
        padding-top: 3.125rem; /* 50px - space for navbar height */
        max-width: 90%; /* shrink to fit small screens */
    }
    
    #letter-container {
        margin-left: auto;
        margin-right: auto;
        justify-content: center;
        padding: 0 1.25rem; /* 20px */
    }

    h1 { 
        font-size: 2rem; /* 32px */
    }
    
    p, .star-list { 
        font-size: 1rem; /* 16px */
    }
    
    #letter-window {
        width: 100%;
        max-width: 100%;
    }
}

/* Very small phones (480px and below) */
@media (max-width: 30rem) {
    .vertical-navbar {
        position: fixed;
        top: 0;
        right: 0;
        left: 0;
        flex-direction: row; /* horizontal */
        justify-content: left; /* center links */
        text-align: center;
        font-size: 1.2rem;
        padding: 0.9375rem 0.625rem; /* 15px 10px */
        gap: 1.25rem; /* 20px */
    }
    
    .content {
        margin-right: 0; /* full width text */
        margin-left: 0.9375rem; /* 15px */
        padding-top: 1.25rem; /* 20px */
        padding: 0.9375rem 0.625rem; /* 15px 10px */
    }
    
    #letter-container {
        margin-top: 1.25rem; /* 20px */
        padding: 0 0.625rem; /* 10px */
    }
    
    h1 { 
        font-size: 1.8rem; /* 28.8px */
    }
    
    p, .star-list { 
        font-size: 0.95rem; /* 15.2px */
    }
    
    #letter {
        min-height: 12.5rem; /* 200px - smaller on mobile */
        font-size: 0.9rem; /* 14.4px */
    }
    
    #letter-form {
        gap: 0.375rem; /* 6px - tighter spacing */
    }
}