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

body {
    font-family: Arial, sans-serif;
    background: #f7f8fc;
    color: #171a24;
    min-height: 100vh;
}

.container {
    width: 92%;
    max-width: 1150px;
    margin: auto;
}

/* Header */

header {
    padding: 28px 0;
    border-bottom: 1px solid #e8eaf0;
    background: rgba(255, 255, 255, 0.9);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -1px;
}

.nav-text {
    color: #697386;
    font-size: 14px;
}

/* Hero */

.hero {
    text-align: center;
    padding: 80px 20px 55px;
}

.hero h1 {
    font-size: 52px;
    line-height: 1.05;
    letter-spacing: -2px;
    max-width: 750px;
    margin: auto;
}

.hero p {
    margin: 20px auto 30px;
    color: #667085;
    font-size: 18px;
    max-width: 600px;
    line-height: 1.6;
}

/* Search */

.search-box {
    max-width: 650px;
    margin: auto;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 20px 22px;
    border: 1px solid #dfe3eb;
    border-radius: 15px;
    background: white;
    font-size: 16px;
    outline: none;
    box-shadow: 0 8px 30px rgba(20, 30, 60, 0.06);
}

.search-box input:focus {
    border-color: #6c63ff;
}

/* Sections */

.section {
    padding: 20px 0 30px;
}

.section-title {
    font-size: 25px;
    margin-bottom: 18px;
}

.section-subtitle {
    color: #7a8394;
    margin-bottom: 25px;
}

/* Cards */

.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.card {
    background: white;
    border: 1px solid #e7e9ef;
    border-radius: 18px;
    padding: 25px;
    text-decoration: none;
    color: inherit;
    transition: 0.2s ease;
    cursor: pointer;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(20, 30, 60, 0.09);
    border-color: #d8d5ff;
}

.card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 13px;
    background: #f0efff;
    font-size: 23px;
    margin-bottom: 20px;
}

.card h3 {
    font-size: 18px;
    margin-bottom: 9px;
}

.card p {
    color: #737d90;
    font-size: 14px;
    line-height: 1.5;
}

/* Popular */

.popular {
    margin-top: 35px;
    padding: 28px;
    background: white;
    border: 1px solid #e7e9ef;
    border-radius: 20px;
}

.popular-title {
    font-size: 20px;
    margin-bottom: 18px;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    padding: 10px 15px;
    background: #f4f5f8;
    border-radius: 10px;
    color: #4f5869;
    font-size: 14px;
}

/* Footer */

footer {
    margin-top: 80px;
    padding: 35px 0;
    border-top: 1px solid #e8eaf0;
    text-align: center;
    color: #8a93a3;
    font-size: 14px;
}

/* Mobile */

@media (max-width: 800px) {

    .cards {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 55px;
    }

    .hero h1 {
        font-size: 40px;
    }

    .nav-text {
        display: none;
    }
}/* Percentage Calculator */

.calculator-page {
    display: none;
    min-height: 100vh;
    padding: 50px 20px;
}

.calculator-container {
    max-width: 800px;
    margin: auto;
}

.back-button {
    background: none;
    border: none;
    font-size: 16px;
    cursor: pointer;
    margin-bottom: 30px;
}

.calculator-container h1 {
    font-size: 42px;
    margin-bottom: 10px;
}

.calculator-container > p {
    color: #777;
    margin-bottom: 40px;
}

.calc-box {
    background: white;
    padding: 30px;
    border-radius: 20px;
    margin-bottom: 25px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
}

.calc-box h2 {
    font-size: 20px;
    margin-bottom: 20px;
}

.inputs {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.inputs input {
    width: 100%;
    padding: 14px;
    border: 1px solid #ddd;
    border-radius: 12px;
    font-size: 16px;
    outline: none;
}

.inputs input:focus {
    border-color: #ff7a00;
}

.calc-box button {
    background: #ff7a00;
    color: white;
    border: none;
    padding: 13px 25px;
    border-radius: 12px;
    font-size: 16px;
    cursor: pointer;
}

.calc-box button:hover {
    opacity: 0.9;
}

.result {
    margin-top: 20px;
    font-size: 18px;
    font-weight: bold;
}.copy-button {
    background: #f3f3f3 !important;
    color: #333 !important;
    margin-left: 8px;
}

.copy-button:hover {
    background: #e8e8e8 !important;
}

.result {
    padding: 15px;
    background: #fff7ef;
    border-radius: 12px;
    color: #222;
}.date-input {
    width: 100%;
    padding: 14px;
    border: 1px solid #ddd;
    border-radius: 12px;
    font-size: 16px;
    box-sizing: border-box;
    outline: none;
}

.date-input:focus {
    border-color: #ff7a00;
}.date-input {
    width: 100%;
    padding: 14px;
    border: 1px solid #ddd;
    border-radius: 12px;
    font-size: 16px;
    box-sizing: border-box;
    outline: none;
    background: white;
}

.date-input:focus {
    border-color: #ff7a00;
}

.calc-box label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.calc-box select {
    cursor: pointer;
}.unit-select {
    width: 100%;
    padding: 14px;
    border: 1px solid #ddd;
    border-radius: 12px;
    font-size: 16px;
    background: white;
    cursor: pointer;
    outline: none;
}

.unit-select:focus {
    border-color: #ff7a00;
}

.full-width {
    width: 100%;
}

.convert-arrow {
    text-align: center;
    font-size: 25px;
    margin: 15px 0;
}

.quick-conversions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.quick-conversions button {
    width: 100%;
}/* =========================
   CALCLY UI UPGRADE
========================= */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #fafafa;
    color: #222;
}


/* =========================
   CARDS
========================= */

.card {
    cursor: pointer;
    position: relative;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

.card::after {
    content: "Open Calculator →";
    display: block;
    margin-top: 18px;
    font-size: 14px;
    font-weight: 600;
    color: #ff7a00;
}


/* =========================
   CARD ICONS
========================= */

.card-icon {
    width: 52px;
    height: 52px;

    display: flex;
    align-items: center;
    justify-content: center;

    border-radius: 14px;

    background: #fff3e8;

    font-size: 24px;

    margin-bottom: 15px;
}


/* =========================
   CALCULATOR PAGE
========================= */

.calculator-page {
    display: none;
    min-height: calc(100vh - 150px);
    padding: 50px 20px;
}

.calculator-container {
    max-width: 800px;
    margin: 0 auto;
}

.calculator-container > h1 {
    font-size: 38px;
    margin-bottom: 10px;
}

.calculator-container > p {
    color: #666;
    margin-bottom: 35px;
}


/* =========================
   BACK BUTTON
========================= */

.back-button {
    border: none;
    background: transparent;
    color: #666;

    font-size: 15px;
    font-weight: 600;

    cursor: pointer;

    padding: 8px 0;

    margin-bottom: 20px;
}

.back-button:hover {
    color: #ff7a00;
}


/* =========================
   CALCULATOR BOX
========================= */

.calc-box {
    background: white;

    border: 1px solid #eee;

    border-radius: 18px;

    padding: 28px;

    margin-bottom: 22px;

    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.04);
}

.calc-box h2 {
    font-size: 20px;
    margin-top: 0;
    margin-bottom: 22px;
}


/* =========================
   INPUTS
========================= */

.calc-box input,
.calc-box select {
    font-family: inherit;
}

.calc-box input:focus,
.calc-box select:focus {
    outline: none;
    border-color: #ff7a00;
    box-shadow: 0 0 0 3px rgba(255, 122, 0, 0.08);
}


/* =========================
   CALCULATE BUTTON
========================= */

.calc-box > button:not(.copy-button) {
    border: none;

    background: #ff7a00;
    color: white;

    padding: 13px 22px;

    border-radius: 11px;

    font-size: 15px;
    font-weight: 600;

    cursor: pointer;

    transition: 0.2s ease;
}

.calc-box > button:not(.copy-button):hover {
    background: #e96e00;
    transform: translateY(-1px);
}


/* =========================
   RESULT
========================= */

.result {
    min-height: 20px;
    margin-top: 18px;
    font-weight: 600;
    line-height: 1.6;
}


/* =========================
   COPY BUTTON
========================= */

.copy-button {
    border: none;

    background: #f3f3f3 !important;
    color: #333 !important;

    margin-left: 8px;

    padding: 10px 15px;

    border-radius: 9px;

    cursor: pointer;

    font-weight: 500;
}

.copy-button:hover {
    background: #e8e8e8 !important;
}


/* =========================
   DATE INPUTS
========================= */

.date-input {
    width: 100%;

    padding: 13px 14px;

    border: 1px solid #ddd;

    border-radius: 11px;

    background: white;

    font-size: 15px;
}


/* =========================
   UNIT SELECT
========================= */

.unit-select {
    width: 100%;

    padding: 13px 14px;

    border: 1px solid #ddd;

    border-radius: 11px;

    font-size: 15px;

    background: white;

    cursor: pointer;
}

.full-width {
    width: 100%;
}

.convert-arrow {
    text-align: center;

    font-size: 25px;

    margin: 15px 0;

    color: #999;
}


/* =========================
   FOOTER
========================= */

footer {
    margin-top: 70px;
}


/* =========================
   MOBILE
========================= */

@media (max-width: 700px) {

    .container {
        width: 92%;
    }

    .hero h1 {
        font-size: 38px;
    }

    .cards {
        grid-template-columns: 1fr;
    }

    .calculator-page {
        padding: 30px 15px;
    }

    .calculator-container > h1 {
        font-size: 30px;
    }

    .calc-box {
        padding: 20px;
    }

    .inputs {
        flex-direction: column;
        align-items: stretch;
    }

    .inputs span {
        text-align: center;
    }

    .copy-button {
        margin-left: 0;
        margin-top: 10px;
    }

}