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

html {
    font-size: 62.5%;
    --colour: rgb(255, 99, 71);
    --lightColour: rgb(255, 108, 82);
    --lighterColour: rgb(255, 120, 106);
    --lightestColour: rgba(255, 119, 95, 0.267);
    --secondaryColour: rgb(211, 197, 118);
}

body {
    background-color: #161616;
    color: #f2f2f2;
    font-family: "Segoe UI", sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;

}

.container {
    width: 100%;
    max-width: 1000px;
    padding: 3.5rem 2.5rem;
    height: 100%;
    position: relative;
}

h1 {
    font-size: 3.5rem;
    text-align: center;
    margin-bottom: 8rem;
    color: rgb(226, 226, 226);
}



.history-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 0 0.5rem;
    /* border: 2px solid secondaryColour; */
    margin: 5rem 0 9rem;
}


.session-card {
    background: rgba(255, 255, 255, 0.04);
    /* subtle light over dark */
    border: 1.5px solid rgba(200, 180, 255, 0.12);
    /* soft lavender border */
    border-radius: 12px;
    padding: 0.6rem 1.2rem 1rem;
    color: #f2f2f2;

    display: flex;
    flex-direction: column;
    justify-content: space-between;

    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);

    transition: transform 0.2s ease, border 0.3s ease;
    min-height: 90px;
    height: auto;
}

.session-card:hover {
    transform: scale(1.01);
    border-color: var(--lighterColour);

}



/* Title */
.session-count {
    font-size: 3.5rem;
    font-weight: bold;
    color: var(--lightColour);
    /* border: 1px solid red; */
    margin: 0;
    line-height: 1;
}

/* goal container */
.goal-container {
    display: flex;
    justify-content: space-between;
}

/* Goal Progress */
.session-goal {
    font-size: 1rem;
    color: var(--secondaryColour);
    margin-top: 0.4rem;
}

/* delete */
.delete-btn {
    align-self: flex-end;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    transform: scale(1);
    transition: color 0.2s ease-in-out;
}

.delete-btn:active {
    transform: scale(1.2);
}

/* Meta Row */
.session-meta {
    display: flex;
    justify-content: space-between;
    font-size: 1rem;
    color: #b3b3b3;
    font-weight: bold;
    margin-top: 0.7rem;
}

.no-data {
    font-size: 1.4rem;
    text-align: center;
    margin-top: 4rem;
    color: #aaa;
}

/* Home Button Container */
.homeBtn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 999;
    /* ensure it stays above everything */
}

/* Icon Button */
.homeBtn i {
    padding: 1.2rem;
    background: rgba(24, 24, 24, 0.4);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    border: 2px solid rgba(180, 150, 255, 0.2);
    font-size: 1.8rem;
    color: var(--secondaryColour);

    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease, background 0.2s ease;
    cursor: pointer;
}

.homeBtn i:hover {
    border: 2px solid var(--lightColour);
    background: rgba(44, 44, 44, 0.5);
}

.homeBtn i:active {
    border: 2px solid var(--lightColour);
    transform: scale(1.12);
}


/* footer */
footer {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    font-size: 1.3rem;
    transform: translate(-50%);
}

footer p i{
    color: var(--secondaryColour);

}

footer p a {
    text-decoration: none;
    color: var(--lighterColour);
    font-weight: bold;
}

footer p a:hover {
    color: var(--colour);
}

@media (min-width: 600px) {
    .history-container {
        grid-template-columns: 1fr 1fr;
        /* 2 columns on wider screens */
    }
}

@media (max-width: 500px) {
    .session-meta {
        font-size: 0.85rem;
    }
}