:root {
    --primary-color: #eae0cc;
    --secondary-color: #79745C;
    --tertiary-color: #704E2E;
    --quaternary-color: #143642;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--primary-color);
    font-family: "Inter", sans-serif;
    color: var(--quaternary-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--tertiary-color);
    font-family: "Inter", sans-serif;
    margin-top: 1.2em;
    margin-bottom: 0.6em;
    line-height: 1.2;
    font-weight: 600;
}

h1 {
    font-size: 2.2em;
}

h2 {
    font-size: 1.6em;
}

p {
    margin-bottom: 0.8em;
}

main {
    flex: 1;
    padding: 24px;
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
}

ul {
    margin: 1.2em 0;
    padding-left: 1.8em;
    list-style: disc;
    color: var(--quaternary-color);
}

main ul li {
    margin-bottom: 0.8em;
}

li strong {
    color: var(--tertiary-color);
}

nav {
    background-color: var(--tertiary-color);
    padding: 14px 24px;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

nav ul {
    display: flex;
    gap: 24px;
    padding: 10px 0;
    margin: -10px 0;
    transition: background-color 0.2s ease;
}



nav li {
    list-style: none;
}

nav a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    padding: 20px 18px;
    border-radius: 0;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    margin: -14px 0;
}

nav a:hover {
    background-color: rgba(0, 0, 0, 0.15);
    color: var(--secondary-color);
}

footer {
    background-color: var(--quaternary-color);
    color: var(--primary-color);
    text-align: center;
    padding: 1.6em 24px;
    margin-top: auto;
    font-size: 0.9em;
    width: 100%;
}
nav a[aria-current="page"] {
    background-color: rgba(0, 0, 0, 0.2);
    color: var(--primary-color);
}

textarea {
    border: 1px solid var(--tertiary-color);
    border-radius: 4px;
    padding: 10px;
    font-size: 1em;
    font-family: "Inter", sans-serif;
    width: 100%;
    margin-bottom: 1em;
    transition: border-color 0.2s ease;
    resize: vertical;
}


textarea:focus {
    border-color: var(--secondary-color);
    outline: none;
}

button {
    background-color: var(--tertiary-color);
    color: var(--primary-color);
    border: none;
    border-radius: 4px;
    padding: 10px 20px;
    font-size: 1em;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

button:hover {
    background-color: var(--secondary-color);
}

/* ── Teleprompter controls ── */
.tp-controls-row {
    display: flex;
    gap: 24px;
    margin-bottom: 1em;
    flex-wrap: wrap;
}

.tp-control-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tp-control-group label {
    font-size: 0.9em;
    font-weight: 500;
    color: var(--secondary-color);
}

.tp-control-group input[type="number"] {
    border: 1px solid var(--tertiary-color);
    border-radius: 4px;
    padding: 8px 10px;
    font-size: 1em;
    width: 130px;
    background-color: var(--primary-color);
    color: var(--quaternary-color);
    transition: border-color 0.2s ease;
}

.tp-control-group input[type="number"]:focus {
    border-color: var(--secondary-color);
    outline: none;
}

/* ── Teleprompter display ── */
.teleprompter-display {
    display: flex;
    flex-direction: column;
    background: var(--quaternary-color);
    border-radius: 8px;
    overflow: hidden;
    height: 65vh;
    min-height: 400px;
    margin-top: 0.5em;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.tp-scroller {
    flex: 1;
    overflow: hidden;
    padding: 40px 10%;
}

.tp-text {
    color: var(--primary-color);
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-word;
}

.tp-end-pad {
    height: 60vh;
}

/* ── Teleprompter control bar ── */
.tp-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    background: rgba(0, 0, 0, 0.25);
    border-top: 1px solid var(--secondary-color);
    flex-shrink: 0;
}

.tp-btn {
    background-color: var(--tertiary-color);
    color: var(--primary-color);
    border: none;
    border-radius: 4px;
    padding: 8px 18px;
    font-size: 0.95em;
    cursor: pointer;
    transition: background-color 0.2s ease;
    white-space: nowrap;
}

.tp-btn:hover {
    background-color: var(--secondary-color);
}

.tp-btn-stop {
    background-color: transparent;
    border: 1px solid var(--secondary-color);
    color: var(--secondary-color);
}

.tp-btn-stop:hover {
    background-color: var(--secondary-color);
    color: var(--primary-color);
}

.tp-speed-control {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
    font-size: 0.9em;
}

.tp-speed-control label {
    color: var(--secondary-color);
    white-space: nowrap;
}

.tp-speed-control input[type="range"] {
    width: 120px;
    accent-color: var(--tertiary-color);
}

#liveSpeedVal {
    min-width: 70px;
    color: var(--primary-color);
    font-size: 0.9em;
    opacity: 0.8;
}

/* ── SpeedRead display ── */
.speedread-display {
    margin-top: 2em;
    text-align: center;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.speedread-display h1 {
    font-size: 3em;
    margin: 0;
    letter-spacing: 0.02em;
}

.sr-progress {
    font-size: 0.9em;
    color: var(--secondary-color);
    margin-top: 0.5em;
    min-height: 1.4em;
}

.sr-btn-row {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 0.5em;
}

.sr-btn-row .tp-btn-stop {
    background-color: transparent;
    border: 1px solid var(--secondary-color);
    color: var(--secondary-color);
    border-radius: 4px;
    padding: 10px 20px;
    font-size: 1em;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.sr-btn-row .tp-btn-stop:hover {
    background-color: var(--secondary-color);
    color: var(--primary-color);
}